18307RS Bearing (5 Pcs) 18307 mm Bicycle Axle 18307-LBLU Drum Ball Bearings 18307 MR18307 for DT Swiss Hubs


  • Inner (d): 18 mm Outer (D): 30 mm Width (B): 7 mm
  • With low be sanded LBlu seals/equivalent to 2RS LLU/LLB (one side: Orange, other side: Black)
  • Grease does not need to be added extra.
  • MR18307 Sealed Cartridge Bearing is designed for some DT Swiss, Bontrager, and Giant applications.
  • This bearing is a peculiar bearing as it’s only 1mm different to 6903-2rs which has a 17mm ID, instead of this bearing at 18mm ID. Appears on hubs made by DT Swiss.

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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.
Can also be used in some computer fans, the entire service life of 3 months.
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: 18307-2RS
For Shaft Type: Round
For Shaft Diameter: 18mm
ID: 17mm
ID Tolerance: -0.007mm to 0mm
For Housing ID: 30mm
OD: 30mm
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
Max Speed (Grease) (X1000 RPM): 14
Lubrication: Pre-Lubricated
Lubricant: Grease
Shaft Mount Type: Press Fit
Temperature Range: -20° to 120 ℃
ABEC Rating: ABEC-3
Radial Clearance Trade No.: C0
Radial Clearance: 0.002mm to 0.013mm
Weight (grams): 13.4

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Additional information

Weight 0.079 kg




8 x 7.9 x 0.9 cm; 90 Grams