Four-row cylindrical roller bearing for high-speed rolling mill
A technology for cylindrical roller bearings and high-speed rolling mills, applied in the direction of roller bearings, bearing components, shafts and bearings, etc., can solve the problems of limited bearing speed and cannot meet the requirements of high rolling speed and precision, and achieve high limit speed, High precision and the effect of increasing the limit speed
Inactive Publication Date: 2010-07-07
瓦房店应用轴承制造有限公司
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Problems solved by technology
[0002] At present, four-row cylindrical roller bearings are widely used in various rolling mills. Four-row cylindrical roller bearings for rolling mills can withstand large radial loads, but the bearing speed is limited, which cannot meet the requirements of high rolling speed and precision.
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[0011] Such as figure 1 A four-row cylindrical roller bearing for a high-speed rolling mill is shown, including two pairs of symmetrical split inner rings 1, split outer rings 2, and two cylindrical roller bearings arranged between each pair of inner rings 1 and outer rings 2. Sub 3; two cylindrical rollers are defined in a cage 6. An outer spacer 4 and an inner spacer 5 are arranged concentrically between the two pairs of inner rings 1 and outer rings 2 . The end faces of both sides of each inner ring and outer ring are provided with circular arc oil grooves along the radial direction; the middle part of the outer cylindrical surface of each outer ring is provided with an annular oil groove around the cylindrical surface, and in the annular groove along the circumferential direction are evenly distributed along the radial direction of the bearing. The oil hole in the direction; the oil hole leads to the space between the two rows of cylindrical rollers. In addition, through...
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The invention discloses a four-row cylindrical roller bearing for a high-speed rolling mill, comprising two pairs of symmetrical split-type inner rings (1) and outer rings (2) as well as cylindrical rollers (3) arranged between the inner rings (1) and the outer rings (2); wherein the cylindrical rollers are limited in a retainer (6); an outer ring spacer (4) and an inner ring spacer (5) are arranged between the inner rings (1) and the outer rings (2); a circular-arc oil groove is radially arranged on end surfaces at two sides of the inner rings and the outer rings; an annular oil groove is arranged at the middle part of an external cylindrical surface of each outer ring around the cylindrical surface, and oil through holes which are arranged along the radial direction of the bearing are evenly distributed in the annular groove along the circumference direction; besides, through holes are evenly distributed at the middle part of the retainer (6) along the circumference direction; oil holes are evenly distributed at the middle part of an external cylindrical surface of the outer ring spacer (4); and the oil holes are communicated with a space between two rows of rollers at two sides and the inner ring spacer (5). The bearing aims at enhancing the lubricating property of the bearing so as to bear larger radial load.
Description
technical field [0001] The invention relates to a four-row cylindrical roller bearing. Background technique [0002] At present, four-row cylindrical roller bearings are widely used in various rolling mills. Four-row cylindrical roller bearings for rolling mills can withstand large radial loads, but the bearing speed is limited, which cannot meet the requirements of high rolling speed and precision. Contents of the invention [0003] The present invention aims to provide a four-row cylindrical roller bearing used on a high-speed rolling mill, and aims to enhance the lubricating performance of the bearing so as to bear a large radial load. [0004] The present invention is a four-row cylindrical roller bearing for high-speed rolling mills, comprising two pairs of symmetrical split inner rings, split outer rings, and two cylindrical rollers arranged between each pair of inner rings and outer rings, and the Two cylindrical rollers are confined in a cage. Among them, two pai...
Claims
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Login to View More IPC IPC(8): F16C19/28F16C33/60F16C33/66F16C33/48
Inventor 王元波许传辽林秋尧郑国清王静安国栋王得伟
Owner 瓦房店应用轴承制造有限公司