Bremsrotoranordnung

Abstract

Brake rotor assembly (12), comprising: a rotor element (30) with a first outer surface and a second outer surface, wherein the first outer surface and / or the second outer surface of the rotor element (30) defines a braking surface (S); a cooling element (34) with a first outer surface and a second outer surface, wherein one of the first outer surface and the second outer surface of the cooling element (34) defines an exposed heat-dissipating surface section and the other of the first outer surface and the second outer surface of the cooling element (34) comprises a fastening section which is directly and detachably coupled in the axial direction by means of a fastening element (F) to a fastening section (42) of the rotor element (30) for transferring heat from the rotor element (30) to the cooling element (34), wherein the cooling element (34) is attached to one of the first and second outer surfaces of the rotor element (30); and a hub fastening element (32) with a plurality of projections (52), defining a connecting section of the hub fastening element (32), wherein the connecting section of the hub fastening element (32) is detachably fixed or fastened to the rotor element (30) to that outer surface of the rotor element (30) by means of the mooring ties (F) with respect to each other, to which the cooling element (34) is detachably fixed or fastened with respect to the rotor element (30) by means of the mooring ties (F) with respect to each other, wherein the mooring ties (F) extend through an opening (44) in projections (42) of the rotor (30), through openings (64) of the cooling element (34) and through openings (54) of the projections (52) of the hub fastening element (32), and the cooling element (34) is provided in a sandwich-like manner with respect to the rotor element (30) between the rotor element (30) and the hub fastening element (32).

Description

Background: Environment of the Invention

[0001] The present invention relates generally to a disc brake rotor. In particular, the present invention relates to a disc brake rotor with a cooling element which has exposed surfaces that provide disc brake rotor cooling. BACKGROUND INFORMATION

[0002] Cycling is becoming an increasingly popular leisure activity, as well as being used more and more for transportation. Furthermore, cycling has become a very popular competitive sport, for both amateurs and professionals. Whether the bicycle is used for leisure, transportation, or competition, the bicycle industry is constantly striving to improve the various components of the bicycle.

[0003] One aspect of the invention is to provide a brake rotor assembly with a cooling element that dissipates heat generated during braking. A ventilated brake disc is known from JP 2003 278 810 A, in which a cooling element is intermediately mounted with respect to opposing braking surfaces. An object of the invention is to provide a structurally simple brake rotor assembly that dissipates the generated heat more effectively. This object is achieved by the features of claim 1. Preferred embodiments are listed in the dependent claims.

[0004] DE 10 2011 001 504 A1 describes a disc brake rotor comprising a first rotor section, a second rotor section and a third rotor section.

[0005] JP 2003- 278 810 A describes a ventilated brake disc consisting of an annular holder 50, a pair of annular cooling plates 70 and a pair of annular friction plates 60.

[0006] DE 10 2005 033 765 A1 describes a brake disc which has axial play and reduced wear.

[0007] DE 10 2008 005 169 A1 describes a brake disc, preferably for an all-terrain vehicle, with an outer ring and an inner ring.

[0008] The publication Breuer / Bill: Brake Handbook. 3rd edition. Wiesbaden: Vieweg Verlag, 2006. Pages 32 and 33 describe the thermal boundary conditions of a brake disc.

[0009] EP 1 847 452 B1 describes a device for coupling a bicycle disc brake rotor with a bicycle wheel hub. SUMMARY

[0010] One aspect of the invention is to provide a brake rotor arrangement with a cooling element which dissipates heat generated during braking.

[0011] In light of the prior art, a brake rotor assembly according to the present invention comprises a rotor element and a cooling element. The rotor element has a first outer surface and a second outer surface. The cooling element is coupled with respect to at least one of the first and second outer surfaces of the rotor element. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] With reference to the accompanying drawings, which form part of the present disclosure, the following applies: Fig. Figure 1 is a side elevation view of a bicycle equipped with a brake rotor arrangement according to a first preferred embodiment. Fig. Figure 2 is an enlarged side elevation view of a section of the bicycle, showing a first side of the brake rotor assembly and a brake caliper according to the first embodiment. Fig. Figure 3 is a schematic rear view of the brake caliper, showing the hydraulic piston of the brake caliper together with two brake linings or blocks, wherein a lining or block is provided on each side of the brake rotor assembly, wherein the brake linings or blocks or pads are spaced apart from the rotor in such a way that the rotor and the front wheel of the bicycle can rotate, in accordance with the first embodiment. Fig. Figure 4 is another schematic rear view of the bicycle brake caliper, similar to... Fig. 3, showing the hydraulic pistons of the brake caliper as they act upon two brake shoes or brake linings or brake blocks or brake pads in contact with respect to the brake rotor assembly, so that a braking effect is achieved by friction surfaces of the brake linings with respect to corresponding surfaces of the brake rotor assembly for the purpose of deceleration and subsequent stopping of the rotation of the front wheel, in accordance with the first embodiment. Fig. Figure 5 is an exploded perspective view of the brake rotor assembly, showing a rotor element, a cooling element and a hub mounting element, the cooling element being installed between the rotor element and the hub mounting element, in accordance with the first preferred embodiment. Fig. Figure 6 is a perspective view of the brake rotor assembly shown fully assembled, with the cooling element shown arranged between the rotor element and the hub mounting element, in accordance with the first embodiment. Fig. Figure 7 is a side view of the brake rotor assembly, shown away from the bicycle, with a second side of the brake rotor assembly shown ( Fig. 2 shows the first side), in accordance with the first preferred embodiment. Fig. Figure 8 is a side view of the cooling element, shown away from the brake rotor assembly, in accordance with the first embodiment. Fig. Figure 9 is a cross-sectional view of a section of the brake rotor assembly, taken along line 9-9 of Fig. 7, wherein a rivet is shown which provides a rigid fixation or securing reciprocally of the rotor element, the cooling element and the hub fastening element, in accordance with the first embodiment. Fig. Figure 10 is an exploded perspective view taken with respect to a brake rotor assembly, showing the cooling element, the rotor element and the hub mounting element, wherein the cooling element is installed on one side of the rotor element opposite the hub mounting element, in accordance with a second preferred embodiment. Fig. Figure 11 is another exploded perspective view of a brake rotor assembly, showing a rotor element, a hub mounting element and the cooling element, wherein the cooling element is installed on one side of the hub mounting element opposite or opposite the rotor element, in accordance with a third preferred embodiment. Fig. Figure 12 is an exploded perspective view of a brake rotor assembly, wherein a rotor element is shown which includes a hub mounting section, wherein a cooling element is provided to be attached to the rotor element in accordance with a fourth preferred embodiment. Fig. Figure 13 is a perspective view of the brake rotor assembly, the representation being fully assembled, with the cooling element arranged on the hub mounting element in accordance with the fourth embodiment. Fig. Figure 14 is an exploded perspective view of a brake rotor assembly, wherein a rotor element is shown having a hub mounting section, and wherein a cooling element is shown being mountable with respect to the rotor element in accordance with a fifth preferred embodiment. DETAILED DESCRIPTION OF THE EXECUTION FORMS

[0013] Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the art that, based on the present disclosure and the following description of preferred embodiments, the description is merely exemplary and for illustrative purposes and in no way intended to limit the invention as defined in the accompanying claims and their corresponding equivalents.

[0014] Initially referring to Fig. Figure 1 shows a bicycle 10 with a brake rotor arrangement 12 according to a first preferred embodiment.

[0015] The bicycle 10 comprises a frame 15, a front wheel 16, and a brake system 18. The front wheel 16 is mounted to rotate with respect to a section of the frame 14 in a conventional manner. The brake system 18 is designed to provide a braking capability for slowing down and / or stopping the rotation of the front wheel 16 in response to the application of the brake system 18 by a cyclist (not shown).

[0016] As this is shown in the Fig. 1 and Fig. As shown in Figure 2, the braking system 18 includes a conventional brake actuation mechanism 22 (only in Fig. 1 shown), a brake caliper 24 and the brake rotor assembly 12. The brake actuation mechanism 22 is connected to the brake caliper 24 by a hydraulic line L such that, in response to the actuation of the brake actuation mechanism 22, hydraulic fluid pressure is generated by the brake actuation mechanism 22 and transmitted via the hydraulic line L to the brake caliper 24, in a conventional manner.

[0017] The transmitted hydraulic pressure causes one or more pistons P of the brake caliper 24 to move the brake pads 26 so that they come into contact with the braking surfaces S of the brake rotor assembly 12, as shown in the Fig. 3 and Fig. 4 is indicated. Based on the drawings and the description, it should be understood here that the brake caliper 24 can have a single piston, but also a pair of pistons P, as indicated in the Fig. 3 and Fig. 4.

[0018] When the brake pads or cushions or linings 26 are forced into contact or subjected to the braking surfaces S of the brake rotor assembly 12, a braking force is generated to stop the front wheel 16 from rotating. As a result, heat is generated. As will be described in greater detail below, the brake rotor assembly 12 is designed to dissipate the generated heat.

[0019] How best to do this in the Fig. 5 and Fig. As shown in Figure 6, the brake rotor assembly 12 includes a rotor element 30, a hub mounting element 32 and a cooling element 34.

[0020] The rotor element 30 comprises an annular section 40 and a plurality of projections 42 (a fastening section) extending radially inward from the annular section 40. The rotor element 30 may be formed or manufactured from a metallic material, as well as from a metal alloy or other materials with good heat transfer properties similar to metallic materials. The braking surfaces S are defined on opposite sides of the annular section 40 of the rotor element 30. Each of the projections 42 contains an opening 44. The openings 44 are dimensioned to receive a mooring line F, as will be described in greater detail below. The braking surfaces S are advantageously annular surfaces defined by opposing sides of the rotor element 30. The braking surfaces S also form a section of the first and second outer surfaces of the rotor element 30.More precisely, the first and second outer surfaces of the rotor element 30 contain opposing braking surfaces S and corresponding surfaces of the projections 42.

[0021] The rotor element 30 is shown with five projections 42 and five openings 44. The five projections 42 define a mounting section of the rotor element for attachment to the hub mounting element 32, as described below. However, it should be understood that, based on the drawings and the description given herein, the rotor element 30 can be provided with any number of projections and openings. For example, the rotor 30 could alternatively have three, four, or six projections. As will be described in greater detail below, the projections 42 (the mounting section) are provided for attachment to the hub mounting element 32 and the cooling element 34, as well as for conducting heat to the cooling element 34.

[0022] As this is shown in the Fig. 2 and Fig. As indicated in Figure 7, the projections 42 are angularly offset at an angle α1 with respect to a line extending outwards from the axis of rotation A of the wheel 16 and the brake rotor assembly 12. The projections 42 are provided with this angular offset of α1 to improve strength and stiffness and to better handle torques such as those that the rotor element 30 must withstand or experiences during braking. The rotor element 30 also has an outer circumferential edge with a radius r1 and an inner circumferential edge with a radius r2.

[0023] The hub mounting element 32 comprises a central hub section 50 and a plurality of radially outwardly extending projections 52, each projection 52 having a corresponding opening 54. The central hub section 50 comprises a plurality of wheel mounting gear teeth 56, dimensioned to engage with a matching section of the front wheel 16. The plurality of projections 52 defines a connecting or linking section of the hub mounting element 32, connected or linked with respect to the rotor element 30.

[0024] The hub fastening element 32 is indicated by five projections 52 and five openings 54. The five projections 52 define a connecting or joining section of the hub fastening element 32. However, it should be understood that, based on the drawings and the description given herein, the hub fastening element 32 may be provided with any number of projections and openings corresponding to the projections 42 and openings 44 of the rotor element 30. For example, the hub fastening element 32 may alternatively include three, four, or six projections 52. In other words, the connecting or joining section of the hub fastening element 32 is provided as comprising at least one projection 52, below a radially extending arm or projection 52, connected or joined to the rotor element 30, as described below.

[0025] As this is shown in the Fig. 2 and Fig. As indicated in Figure 7, the projections 42 are angularly offset by an angle α2 with respect to a line extending outwards from the axis of rotation A of the wheel 16 and the brake rotor assembly 12. The projections 42 are provided with the angular offset of α2 for improved strength or stiffness when handling torques such as those experienced or to be withstood by the rotor element 30 during braking.

[0026] How best to do this in the Fig. 5 and Fig. As shown in Figure 8, the cooling element 34 is essentially annular, disc-shaped, comprising a disc section 60 with a central opening 62 and openings 64. As this is best illustrated in the Fig. 7 and Fig. As can be seen in Figure 8, the disk section 60 has an outer circumferential edge 66 with a radius r3 and an inner circumferential edge 68 with a radius r4. The cooling element 34 can be formed or manufactured from metallic material, such as aluminum, an aluminum alloy, or carbon fiber material with good heat transfer or conductivity properties.

[0027] In the embodiment described in the Fig. As shown in Figures 2 and 5 to 9, the rotor element 30, the hub mounting element 32, and the cooling element 34 are detachably fixed or fastened relative to one another by fasteners F. The fasteners F can be, for example, rivets, easily removable threaded bolts, or similar components. In the illustrated embodiment, the fasteners F are shown as rivets. Furthermore, the fasteners F extend through the opening 44 in the projections 42 of the rotor 30, through the openings 64 of the cooling disk 34, and through the openings 54 of the projections 52 of the hub mounting element 32. Thus, the cooling element 34 is detachably attached to the projections 42, or rather, relative to the projections 42 (the mounting section) of the rotor element 30, by means of the fastener F. The cooling element 34 is also attached or fixed to one of the outer surfaces of the rotor element 30.

[0028] In the Fig. In the embodiment shown in Figures 2 and 5 to 9, the cooling element 34 is sandwiched between the rotor element 30 and the hub mounting element 32. However, in a second embodiment, as indicated in Fig. 10 the rotor element 30 is provided in a sandwich-like manner between the cooling element 43 and the hub mounting element 32. In a third embodiment, the hub mounting element 32 is provided in a sandwich-like manner between the cooling element 34 and the rotor element 30.

[0029] As this is in Fig. As shown in Figure 7, the radii r1 and r2 serve to define the area of ​​the braking surface S of the rotor element 30. In particular, the area of ​​one of the braking surfaces S is equal to π(r1). 2 minus π(r2) 2 Furthermore, the area of ​​one side of the cooling element 34 is equal to π(r3) 2 minus π(r4) 2 .

[0030] The various radii r1, r2, r3, and r4 are dimensioned such that the area of ​​the cooling element 34 is larger than the area of ​​the braking surface S of the rotor element 30. Furthermore, the inner radius r2 of the rotor element 30 is larger than the outer radius r3 of the cooling element 34. Thus, the cooling element 34 is positioned at a distance from the braking surfaces S and the annular space 40 of the rotor element 30.

[0031] The brake rotor assembly 12 is designed to dissipate heat more efficiently than prior art rotor assemblies. In particular, heat is generated when the brake pads or linings 26 are pressed against the braking surfaces S of the rotor element 30. The heat is conducted through the projections 42 and the fastening elements F to the cooling element 34 and the hub mounting element 32. Since the cooling element 34 has a larger surface area than the braking surfaces S, heat is dissipated or released from the cooling element 34 to the surrounding air by convection (and radiation).

[0032] Cooling the rotor element 30 by transferring heat to the cooling element 34 can help to increase the service life of the rotor element 30 and can improve the braking effect.

[0033] Based on the drawings and the description given herein, it should be understood that the brake rotor assembly 12 can be used for both the front wheel 16 and the rear wheel (not shown). Furthermore, the brake rotor assembly 12 can be used with either a hydraulic brake system 18 or a mechanical brake system with non-hydraulic brake calipers or with electric brake calipers. SECOND VERSION

[0034] With reference to Fig. In Section 10, a brake rotor arrangement 112 according to a second preferred embodiment will be described. Given the similarity between the first and second embodiments, those parts of the second embodiment that are identical to those of the first embodiment will be designated with reference numerals corresponding to those of the first embodiment. Furthermore, the description of those parts of the second embodiment that are identical to those of the first embodiment will be omitted for the sake of brevity.

[0035] In the second embodiment, the brake rotor assembly 112 comprises the rotor element 30, the cooling element 34, and the hub mounting element 32 of the brake rotor assembly 112 of the first embodiment. However, in the second embodiment, the rotor element 30 is sandwiched between the cooling element 34 and the hub mounting element 32. Furthermore, the fastening elements F extend through the openings 64, 44, and 54 of the cooling element 34, the rotor element 30, and the hub mounting element 32, providing a rigid fixation of the cooling element 34 relative to the rotor element 30 and the hub mounting element 32, respectively. THIRD VERSION

[0036] With reference to Fig. Section 11 describes a brake rotor arrangement 212 according to a third preferred embodiment. Given the similarity between the first and third embodiments, those parts of the third embodiment that are identical to those of the first embodiment will be indicated with the same reference numerals as those of the first embodiment. Furthermore, for the sake of brevity, the description of those parts of the third embodiment that are identical to those of the first embodiment will be omitted.

[0037] In the third embodiment, the brake rotor assembly 212 comprises the rotor element 30, the cooling element 34, and the hub mounting element 32 of the brake rotor assembly 112 of the first embodiment. However, in the third embodiment, the hub mounting element 32 is sandwiched between the rotor element 30 and the cooling element 34. Furthermore, the fastening elements F extend through the openings 44, 54, and 64 of the rotor element 30, the hub mounting element 32, and the cooling element 34, respectively, to rigidly secure or fix the cooling element 34, the rotor element 30, and the hub mounting element 32 to one another. FOURTH VERSION

[0038] With reference to the Fig. 12 and Fig. 13, a brake rotor arrangement 312 according to a fourth preferred embodiment will be described. Given the similarity between the first and fourth embodiments, those parts of the fourth embodiment that are identical to those of the first embodiment will be designated with corresponding reference numerals, just as those parts of the first embodiment are. Furthermore, descriptions of those parts of the fourth embodiment that are identical to those of the first embodiment will be omitted for the sake of brevity.

[0039] The brake rotor assembly 312 comprises a rotor element 330 and a cooling element 334. The rotor element 330 includes an outer, annular rotor section with braking surfaces, a plurality of radially inwardly extending projections 342, and a hub mounting section 332. The outer annular rotor section, the plurality of radially inwardly extending projections 342, and the hub mounting section 332 are formed as a single integral unit, namely as a monolithic element (one-piece element), with no seams or connections between the elements or components or parts.

[0040] The hub mounting section 332 contains a plurality of openings (six openings) provided for detachable attachment to the front wheel 16 or the rear wheel (not shown) for use in a braking system, such as a braking system 18.

[0041] In the fourth preferred embodiment, the cooling element 334 is identical to the cooling element 34 of the first embodiment, except that there is no need for openings, and therefore none are provided. On the contrary, the cooling element 334 is fixed to the projections 342 and / or to the hub mounting section 332 of the rotor element 334 by a thermally conductive adhesive or by double-sided adhesive tape T. The double-sided adhesive tape T can be made of any variety of materials, provided that good thermal conductivity properties are present, such as a double-sided metallic adhesive tape.

[0042] As this is in Fig. As shown in Figure 12, the projections 342 define a plurality of gaps or openings between them. As shown in the fifth embodiment (below), these gaps or openings are not provided or have been eliminated. FIFTH VERSION

[0043] With reference to Fig. Section 14 describes a brake rotor arrangement 412 according to a fifth preferred embodiment. Given the similarity between the first, fourth, and fifth embodiments, those parts of the fifth embodiment that are identical to those of the first and fourth embodiments are designated with reference numerals corresponding to those of the first embodiment. Furthermore, for the sake of brevity, the descriptions of those parts of the fifth embodiment that are identical to those of the first and fourth embodiments are omitted.

[0044] The brake rotor assembly 412 comprises a rotor element 430 and the cooling element 334. The rotor element 430 comprises an outer rotor section with braking surfaces and a hub mounting section 432. The outer rotor section and the hub mounting section 432 are designed as integral or one-piece monolithic elements (one-piece) without any seams, joints, or transitions between them.

[0045] The rotor element 430 does not contain any projections, but is instead made of solid material between the outer rotor section and the hub mounting section 432.

[0046] In the fifth preferred embodiment, the cooling element 334 is the same or identical to that of the fourth embodiment. As in the fourth embodiment, the cooling element 334 is fixed to the rotor element 430 at any location between the braking surface section of the rotor element 430 and the hub mounting section 432 of the rotor element 434 by thermally conductive adhesive material or double-sided adhesive tape T. The double-sided adhesive tape T can be any material from a variety of materials that has good thermal conductivity properties, such as a double-sided metallic adhesive tape. GENERAL INTERPRETATION OF TERMS

[0047] In understanding the scope of the present invention, the term "comprehensive" and its variations as used herein should be understood as non-exhaustive enumeration terms that indicate the presence of the specified feature, element, component, group, integer, and / or step, but do not exclude the presence of other features, elements, components, groups, integers, and / or steps not mentioned. This also applies to words with similar meanings, such as "containing," "having," and their variations. Similarly, the terms "part," "section," "proportion," "element," or "section," when used in the singular, should each be understood as having a dual meaning, encompassing both individual parts and a plurality of parts.As used herein to describe the above embodiment, the following directional terms "forward," "backward," "above," "below," "vertical," "horizontal," "under," "over," and "across," as well as any similar directional terms, are to be understood as referring to directions with respect to a bicycle equipped with the brake rotor assembly according to the invention. Accordingly, these terms, as used to describe the brake rotor assembly, should always be interpreted with reference to a bicycle equipped with a brake rotor assembly when used under normal riding conditions. Finally, terms containing a measure, such as "essentially," "about," or "approximately," as used herein, are to be understood as encompassing a reasonable amount of deviation from the term or value in question, such that the final result is not significantly altered.

[0048] The terms “coupled”, “coupled with” or “couples” as used herein include configurations in which a first element is directly attached or connected with respect to a second element by attaching the first element directly to the second element; configurations in which the first element is indirectly attached to the second element by attaching the first element with respect to an intermediate element or multiple intermediate elements, which in turn are fixed or attached to the second element; and configurations in which the element is integral with respect to the second element, that is, an element which is substantially part of the other element.

[0049] While only selected embodiments have been presented for the purpose of illustrating the present invention, it will be apparent to those skilled in the art that various changes or modifications can be made based on the present disclosure without deviating from the scope and spirit of the invention, as defined in the accompanying claims. For example, the size, shape, arrangement, and orientation of the various components can be changed as desired or as required and / or desired. Components shown to be directly connected or in contact with one another may have intermediate structures arranged between them. The functions of one element can be provided by two elements, or vice versa. The structures and functions of one embodiment can be integrated or incorporated into other embodiments, either alternatively or additionally.It is not necessary for all advantages to be present simultaneously in a specific embodiment. Each feature that is unique with respect to the prior art, alone or in combination with other features, shall also be considered herein as a separate description of further inventions provided by the applicant, including the structural and / or functional concepts that are or could be implemented by such features. Thus, the preceding description of preferred embodiments according to the present invention is given for illustrative purposes only and not for the purpose of limiting the invention as defined by the accompanying claims, including their equivalents.

Claims

[1] Brake rotor assembly (12), comprising: a rotor element (30) with a first outer surface and a second outer surface, wherein the first outer surface and / or the second outer surface of the rotor element (30) defines a braking surface (S); a cooling element (34) with a first outer surface and a second outer surface, wherein one of the first outer surface and the second outer surface of the cooling element (34) defines an exposed heat-dissipating surface section and the other of the first outer surface and the second outer surface of the cooling element (34) comprises a fastening section which is directly and detachably coupled in the axial direction by means of a fastening element (F) to a fastening section (42) of the rotor element (30) for transferring heat from the rotor element (30) to the cooling element (34), wherein the cooling element (34) is attached to one of the first and second outer surfaces of the rotor element (30); and a hub fastening element (32) with a plurality of projections (52), defining a connecting section of the hub fastening element (32), wherein the connecting section of the hub fastening element (32) is detachably fixed or fastened to the rotor element (30) to that outer surface of the rotor element (30) by the mooring ties (F) with respect to each other, to which the cooling element (34) is detachably fixed or fastened with respect to the rotor element (30) by the mooring ties (F) with respect to each other, wherein the mooring ties (F) extend through an opening (44) in projections (42) of the rotor (30), through openings (64) of the cooling element (34) and through openings (54) of the projections (52) of the hub fastening element (32), and the cooling element (34) is provided in a sandwich-like manner with respect to the rotor element (30) between the rotor element (30) and the hub fastening element (32). [2] Brake rotor arrangement (12) according to claim 1, in which the mounting section of the cooling element (34) includes an axially facing mounting section surface which is coupled to an opposite axially facing mounting section surface of the mounting section (42) of the rotor element (30). [3] Brake rotor arrangement (12) according to claim 1 or 2, in which the mounting surface section of the cooling element (34) and the mounting section (42) of the rotor element (30) are opposite each other in an axial direction, in particular overlapping radially inwards from the braking surface (S). [4] Brake rotor arrangement (12) according to claim 1, 2 or 3, wherein the fastening section (42) of the rotor element (30) comprises radially inwardly extending projections (42) which are angled with respect to the radial direction. [5] Brake rotor arrangement (12) according to one of claims 1 to 4, in which the cooling element (34) is detachably coupled with respect to one of the first and second outer surfaces of the rotor element (30). [6] Brake rotor assembly (12) according to one of claims 1 to 5, in which the cooling element (34) is coupled to the fastening section (42) of the rotor element (30) by a rivet. [7] Brake rotor arrangement (12) according to one of the preceding claims, wherein the cooling element (34) is coupled to the mounting section (42) of the rotor element (30) by a double-sided adhesive tape. [8] Brake rotor arrangement (12) according to one of the preceding claims, wherein the cooling element (34) is a disc-shaped element. [9] Brake rotor arrangement (12) according to one of the preceding claims, wherein the cooling element (34) is directly attached to the rotor element (30). [10] Brake rotor assembly (12) according to one of the preceding claims, wherein the hub fastening element (32) has a fastening section dimensioned for detachable fastening to a bicycle hub. [11] Brake rotor assembly (12) according to claim 10, in which the cooling element (34) is provided in a sandwich-like manner between the rotor element (30) and the hub mounting element (32). [12] Brake rotor assembly (12) according to claim 10 or 11, wherein the connecting section of the hub fastening element comprises at least one radially extending arm, connected or connected with respect to the rotor element (30). [13] Brake rotor assembly (12) according to one of the preceding claims, wherein the cooling element (34) is made of an aluminium material.

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