Show Some Love
The bicycle is a beautiful thing — art and performance wrapped up in an awesome package.
But they do not roll without the bearings.
You can not steer, roll, or pedal without them.
So show some love, and keep them rolling smoothly by knowing more about your bike from front to back.
If your rotating components are not smooth, have a look inside to see what you can do for better performance.

Structural Parameters
Category Type: Deep Groove Ball Bearings
Bearing Type: Ball
For Load Direction: Radial
Construction: Single Row
Seal Type: Rubber Sealed
Ball Bearing Type: For Bicycle

Dimensions Parameters
Part Number: 19317-2RS
For Shaft Type: Round
For Shaft Diameter: 19.05mm
ID: 19.05mm
ID Tolerance: -0.007mm to 0mm
For Housing ID: 31mm
OD: 31mm
OD Tolerance: -0.008mm to 0mm
Width: 7mm
Width Tolerance: -0.12mm to 0mm

Material Parameters
Ring Material: 52100 Chrome steel
Ball Material: Chrome steel
Rubber Material: NBR

Conditions Parameters
Structure: Full balls without Cage
Lubrication: Pre-Lubricated Double
Lubricant: Grease
Shaft Mount Type: Press Fit
Temperature Range: -20° to 150 ℃
ABEC Rating: ABEC-3
Radial Clearance Trade No.: C0
Radial Clearance: 0.002mm to 0.013mm
Weight (grams): 17.38

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