21317 Spherical Roller Bearings
1.21317 bearing Abstract: Spherical roller bearings use rollers that are thicker in the middle and thinner at the ends; the race is shaped to match. Spherical roller bearings can thus adjust to support misaligned loads. However, spherical rollers are difficult to produce and thus expensive, and the bearings have higher friction than a comparable ball bearing since different parts of the spherical rollers run at different speeds on the rounded race and thus there are opposing forces along the bearing/race contact.
2. 21317 bearing product details: Structure: Spherical Type: Roller Brand Name: HZK Bore Size: 85 mm Outside Diameter: 180 mm Model Number: 21317 Precision Rating: ABEC-1,ABEC-3 Seals Type: OPEN Number of Row: other Place of Origin: Shandong China (Mainland) Shield/Sealing: OPEN,Z,ZZ,2RS Material: chrome steel carbon steel Quality standard: ISO90001:2000 Cage: steel brass nylon Packing details: Industrial packing or as reque... Vibration: Z1V1,Z2V2,Z3V3
3.Common Options: E-- Extra Capacity style J-- Steel cage M-- Machined brass cage K-- 1:12 Tapered Bore C2-- tight internal clearance C0-- Normal Clearance C3-- Greater than normal Clearance T41A-- Shaker Screen Style
4.features: 1) Good quality, reasonable prices 2) Wide application and attractive appearance 3) Widely used in all kinds of machinery 4)The range of inner diameter size is below 2000mm
5.applications: Motorcycles, Electric Bicycles, Electric Motors (Scooters), Electric Tools, Fans, Sports Apparatus, Washing Machines, Dust Collectors, Ventilators, Textile, Machines, Running Machines (Treadmills), Household Appliances, Water Pumps, Agricultural Machines, Precision Machineries, etc.
spherical roller bearing catalogue:
| Model | d | D | B |
| mm | mm | mm | |
| 21304 | 20 | 52 | 15 |
| 21305 | 25 | 62 | 17 |
| 21306 | 30 | 72 | 19 |
| 21307 | 35 | 80 | 21 |
| 21308 | 40 | 90 | 23 |
| 21309 | 45 | 100 | 25 |
| 21310 | 50 | 110 | 27 |
| 21311 | 55 | 120 | 29 |
| 21312 | 60 | 130 | 31 |
| 21313 | 65 | 140 | 33 |
| 21314 | 70 | 150 | 35 |
| 21315 | 75 | 160 | 37 |
| 21316 | 80 | 170 | 39 |
| 21317 | 85 | 180 | 41 |
| 21318 | 90 | 190 | 43 |
| 21319 | 95 | 200 | 45 |
| 21320 | 100 | 215 | 47 |
| 21321 | 110 | 240 | 50 |
