Cryogenic bearing( is one of the important components of cryogenic liquid pump.The bearing is mainly classified into two categories:deep groove ball bearing and angular contact ball bearing. The material of rings is 9Cr18Mo stainless steel which can have long life by special processing,while it may use exported Cronidur30(X30 CrMoN15-2) with rich Nitrogen,but its price is very expensive. The rolling elements of bearing mostly are ceramic ball which is made of Si3N4.
The cage is made of self-lubricated,anti-wear and low-temperature resistance material.The base material of it is PTFE with enhanced glass fiber and MoS2(self-lucubration material).When bearing rotates,during fabrication, the trip of PTFE is constantly adhered and rolled and then gradually formed transfer film on the raceway. With the thickness of 100μm.
优质的材料和特殊的加工工艺使轴承具有极佳的抗腐蚀、抗磨损和抗疲劳特性，从而使轴承具有更高的可靠性和更长的使用寿命，减少客户维护时间，提高生产效率。
The features of bearing
Work in ultra-low temperature from -120℃ to -196℃.
During operation，there is no lubricant but lubricated by medium in pump.
Lubrication environment is very harsh and it is required that bearing has long life. Special material and structure design reduce the friction coefficient so that the heat caused by friction is reduced,therefore the bearing work long and reliably.
The precision of low temperature bearing is P5 and P4,but all of our products is up to grade P4 at present.
The clearance of C3 group is chosen.
Vacuum package is adopted.
我们的产品
案例
我们的产品已用于低温泵制造商，并可替代进口轴承。我们产品的使用寿命超过一年。
中型
Medium used in it include :LN2,LO2,LH2,LAr,LNG,CNG,LPG,liquid CH4 and liquid C2H4,etc
产品列表
Deep Groove Ball Bearing
| 轴承型号型号 | 外 形 尺 寸Contour Dimensions | 额定载荷（KN）Rated load | 极限转速(r/min)Limit Speed | ||||
| d | D | B | r傻笑 | Cr | C或 | ||
| 6205 | 25 | 52 | 15 | 1.0 | 14.0 | 7.8 | 17000 |
| 6206 | 30 | 62 | 16 | 1.0 | 19.3 | 11.2 | 14000 |
| 6207 | 35 | 72 | 17 | 1.1 | 25.5 | 15.3 | 12000 |
| 6208 | 40 | 80 | 18 | 1.1 | 29.0 | 18.0 | 11000 |
| 6209 | 45 | 85 | 19 | 1.1 | 31.0 | 20.4 | 10000 |
| 6210 | 50 | 90 | 20 | 1.1 | 36.5 | 24.0 | 9500 |
| 6211 | 55 | 100 | 21 | 1.5 | 43.0 | 29.0 | 8500 |
| 6213 | 65 | 120 | 23 | 1.5 | 58.0 | 41.5 | 7000 |
| 6215 | 75 | 130 | 25 | 1.5 | 64.0 | 48.0 | 6800 |
| 6217 | 85 | 150 | 28 | 2.0 | 82.5 | 62.0 | 6500 |
| 6305 | 25 | 62 | 17 | 1.1 | 22.0 | 11.0 | 22000 |
| 6308 | 40 | 90 | 23 | 1.5 | 42.5 | 25.0 | 11000 |
| 6311 | 55 | 120 | 29 | 2.0 | 76.0 | 47.5 | 10000 |
| 6314 | 70 | 150 | 25 | 2.1 | 102.0 | 66.0 | 9000 |
| 6318 | 90 | 190 | 43 | 3.0 | 132 | 100 | 6000 |
| 6320 | 100 | 215 | 47 | 3.0 | 160 | 130 | 5700 |
| 6322 | 110 | 240 | 50 | 3.0 | 190 | 165 | 5400 |
| 6328 | 140 | 300 | 62 | 4.0 | 255 | 250 | 4000 |
| 轴承型号型号 | 外 形 尺 寸Contour Dimensions | 额定载荷（KN）Rated load | 极限转速(r/min)Limit Speed | ||||
| d | D | B | r傻笑 | Cr | C或 | ||
| 6205 | 25 | 52 | 15 | 1.0 | 14.0 | 7.8 | 17000 |
| 6206 | 30 | 62 | 16 | 1.0 | 19.3 | 11.2 | 14000 |
| 6207 | 35 | 72 | 17 | 1.1 | 25.5 | 15.3 | 12000 |
| 6208 | 40 | 80 | 18 | 1.1 | 29.0 | 18.0 | 11000 |
| 6209 | 45 | 85 | 19 | 1.1 | 31.0 | 20.4 | 10000 |
| 6210 | 50 | 90 | 20 | 1.1 | 36.5 | 24.0 | 9500 |
| 6211 | 55 | 100 | 21 | 1.5 | 43.0 | 29.0 | 8500 |
| 6213 | 65 | 120 | 23 | 1.5 | 58.0 | 41.5 | 7000 |
| 6215 | 75 | 130 | 25 | 1.5 | 64.0 | 48.0 | 6800 |
| 6217 | 85 | 150 | 28 | 2.0 | 82.5 | 62.0 | 6500 |
| 6305 | 25 | 62 | 17 | 1.1 | 22.0 | 11.0 | 22000 |
| 6308 | 40 | 90 | 23 | 1.5 | 42.5 | 25.0 | 11000 |
| 6311 | 55 | 120 | 29 | 2.0 | 76.0 | 47.5 | 10000 |
| 6314 | 70 | 150 | 25 | 2.1 | 102.0 | 66.0 | 9000 |
| 6318 | 90 | 190 | 43 | 3.0 | 132 | 100 | 6000 |
| 6320 | 100 | 215 | 47 | 3.0 | 160 | 130 | 5700 |
| 6322 | 110 | 240 | 50 | 3.0 | 190 | 165 | 5400 |
| 6328 | 140 | 300 | 62 | 4.0 | 255 | 250 | 4000 |
| 轴承型号型号 | 外 形 尺 寸Contour Dimensions | 额定载荷（KN）Rated load | 极限转速(r/min)Limit Speed | ||||
| d | D | B | r傻笑 | Cr | C或 | ||
| 6205 | 25 | 52 | 15 | 1.0 | 14.0 | 7.8 | 17000 |
| 6206 | 30 | 62 | 16 | 1.0 | 19.3 | 11.2 | 14000 |
| 6207 | 35 | 72 | 17 | 1.1 | 25.5 | 15.3 | 12000 |
| 6208 | 40 | 80 | 18 | 1.1 | 29.0 | 18.0 | 11000 |
| 6209 | 45 | 85 | 19 | 1.1 | 31.0 | 20.4 | 10000 |
| 6210 | 50 | 90 | 20 | 1.1 | 36.5 | 24.0 | 9500 |
| 6211 | 55 | 100 | 21 | 1.5 | 43.0 | 29.0 | 8500 |
| 6213 | 65 | 120 | 23 | 1.5 | 58.0 | 41.5 | 7000 |
| 6215 | 75 | 130 | 25 | 1.5 | 64.0 | 48.0 | 6800 |
| 6217 | 85 | 150 | 28 | 2.0 | 82.5 | 62.0 | 6500 |
| 6305 | 25 | 62 | 17 | 1.1 | 22.0 | 11.0 | 22000 |
| 6308 | 40 | 90 | 23 | 1.5 | 42.5 | 25.0 | 11000 |
| 6311 | 55 | 120 | 29 | 2.0 | 76.0 | 47.5 | 10000 |
| 6314 | 70 | 150 | 25 | 2.1 | 102.0 | 66.0 | 9000 |
| 6318 | 90 | 190 | 43 | 3.0 | 132 | 100 | 6000 |
| 6320 | 100 | 215 | 47 | 3.0 | 160 | 130 | 5700 |
| 6322 | 110 | 240 | 50 | 3.0 | 190 | 165 | 5400 |
| 6328 | 140 | 300 | 62 | 4.0 | 255 | 250 | 4000 |
Angular Contact Ball Bearing
| 轴承型号 型号 | 外 形 尺 寸Contour dimension | 额定载荷（KN）Rated load | 极限转速(r/min)限速 | |||||
| d | D | B | rsmin | r1smin | Cr | Cor | ||
| 7205 | 25 | 52 | 15 | 1.0 | 0.3 | 15.0 | 9.0 | 26000 |
| 7206 | 30 | 62 | 16 | 1.0 | 0.3 | 22.0 | 14.0 | 22000 |
| 7207 | 35 | 72 | 17 | 1.1 | 0.6 | 29.0 | 19.0 | 19000 |
| 7208 | 40 | 80 | 18 | 1.1 | 0.6 | 30.5 | 21.6 | 17000 |
| 7209 | 45 | 85 | 19 | 1.1 | 0.6 | 39.0 | 27.5 | 15000 |
| 7210 | 50 | 90 | 20 | 1.1 | 0.6 | 40.5 | 30.5 | 14000 |
| 7305 | 25 | 62 | 17 | 1.1 | 0.6 | 18.3 | 10.6 | 18000 |
| 7306 | 30 | 72 | 19 | 1.1 | 0.6 | 24.8 | 15.4 | 15000 |
| 7307 | 30 | 80 | 21 | 1.5. | 0.6 | 30.6 | 19.6 | 14000 |
| 7308 | 40 | 90 | 23 | 1.5 | 0.6 | 37.0 | 24.4 | 12600 |
| 7309 | 45 | 100 | 25 | 1.5 | 0.6 | 47.6 | 31.8 | 12000 |
| 7310 | 50 | 110 | 27 | 2.0 | 1.0 | 54.6 | 39.2 | 10000 |
注：表中数值为正常润滑时的极限转速，额定负载和极限转速仅供参考。