Double row spherical roller bearings 21304 roller bearings size 20*52*15mm

Double row bearing 21304  spherical roller bearings size 20*52*15mm

21304 Spherical Roller Bearings

1.21304 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.

2.21304 bearing product details:
Structure: Spherical  
Type: Roller  
Brand Name: CLUNT
Bore Size: 20 mm  
Outside Diameter: 52 mm  
Model Number: 21304  
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:

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