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a bearing

A bearing and bearing material technology, applied in the field of bearings, can solve the problems of radial size, large vibration and noise, and high price, and achieve the effects of good wear resistance, high temperature resistance and performance improvement.

Active Publication Date: 2017-10-03
NANTONG LAIBITE BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the rolling bearing has been standardized and serialized, but compared with the sliding bearing, its radial size, vibration and noise are larger, and the price is also higher.

Method used

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Effect test

Embodiment 1

[0010] This embodiment relates to a bearing, which is made of the following bearing materials using a conventional method, and the preparation method of the bearing material consists of the following steps:

[0011] Based on 100 parts by weight, take C0.65, Si0.45, Mn0.8, Cr1.0, Mo0.15, Ni6, MoS 2 8. W2, chromium carbide 6, P≤0.015, S≤0.015, the balance is Fe and unavoidable impurities;

[0012] Step 1: Take Si powder, Mn powder, Cr powder, Mo powder, Ni powder, W powder, and Fe powder and mix them evenly to obtain metal powder;

[0013] Step 2: Take MoS2, C and chromium carbide, add them to the metal powder obtained in Step 1, and put them in a ball mill barrel for grinding to obtain a mixture;

[0014] Step 3: Take the mixture and use the sliding bearing bush mold to press and mold under the pressure of 1300kg / cm2. The pressing process keeps the pressure stable and keeps it for 2 hours to obtain the bush blank;

[0015] Step 4: Take the bush blank for sintering under the protection of...

Embodiment 2

[0019] This embodiment relates to a bearing, which is made of the following bearing materials using conventional methods, and the preparation method of the bearing material consists of the following steps:

[0020] Based on 100 parts by weight, take C0.70, Si0.55, Mn0.95, Cr1.4, Mo0.2, Ni10, MoS 2 16, W6, chromium carbide 8, P≤0.012, S≤0.012, the balance is Fe and unavoidable impurities;

[0021] Step 1: Take Si powder, Mn powder, Cr powder, Mo powder, Ni powder, W powder, and Fe powder and mix them evenly to obtain metal powder;

[0022] Step 2: Take MoS2, C and chromium carbide, add them to the metal powder obtained in Step 1, and put them in a ball mill barrel for grinding to obtain a mixture;

[0023] Step three, take the mixture and use the sliding bearing bush mold to press and mold under the pressure of 1600kg / cm2, and keep the pressure stable during the pressing process and keep it for 4 hours to obtain the bush blank;

[0024] Step 4: Take the bush blank for sintering under the...

Embodiment 3

[0028] This embodiment relates to a bearing, which is made of the following bearing materials using a conventional method, and the preparation method of the bearing material consists of the following steps:

[0029] Based on 100 parts by weight, take C0.66, Si0.48, Mn0.85, Cr1.1, Mo0.16, Ni7, MoS210, W3, chromium carbide 6.5, P≤0.010, S≤0.010, the balance being Fe and Inevitable impurities;

[0030] Step 1: Take Si powder, Mn powder, Cr powder, Mo powder, Ni powder, W powder, and Fe powder and mix them evenly to obtain metal powder;

[0031] Step two, take MoS 2 , C and chromium carbide are added to the metal powder obtained in step 1 and put into a ball mill cylinder for grinding to obtain a mixture;

[0032] Step three, take the mixture and use the sliding bearing bush mold to press mold under the pressure of 1500kg / cm2, and keep the pressure stable during the pressing process and keep it for 3 hours to obtain the bush blank;

[0033] Step 4: Take the bush blank for sintering under t...

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Abstract

The present invention provides a bearing, the bearing is made of the following bearing material, the components of the bearing material are as follows: C0.65-0.70, Si0.45-0.55%, Mn0.8-0.95%, Cr1.0- 1.4%, Mo0.15‑0.20%, Ni6‑10%, MoS28‑16%, W2‑6%, chromium carbide 6‑8%, P≤0.015%, S≤0.015%, the balance is Fe and unavoidable Impurities. The present invention improves the performance of the bearing material by rationally combining the weight and content of the elements in the bearing material, and the prepared bearing material has very good wear resistance, and the service life of the bearing above 300°C is longer than that of the existing bearing At least 4 times more, and at the same time, the high temperature resistance of the bearing material can be improved by more than 30%.

Description

Technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a bearing. Background technique [0002] Bearings are important parts of contemporary machinery and equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, its radial size, vibration and noise are larger, and the price is higher. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling elements and cage; according to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings. With the development of industrial manufacturing, the requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/44C22C32/00
Inventor 马捷
Owner NANTONG LAIBITE BEARING CO LTD