4x9x4 Bearing

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Comparing Ball Bearings and Roller Bearings
The most common types of bearings you’ll find in a motorcycle are ball bearings and roller bearings.

 

Ball bearings use spherical balls in between the inner and outer rings to reduce friction. The contact points between the balls and the rings are very small which allows the bearing to spin freely at high RPMs.

 

Roller bearings use small cylindrical rollers instead of spherical balls to allow the inner and outer rings to spin freely. Using rollers helps spread the weight of heavier loads across a larger surface.

 

Axial vs. Radial Loads
It’s helpful to understand the two types of loads a bearing will be subjected to during its operation, namely axial loads and radial loads.

 


 

4 mm x 9 mm x 4 mm Loyal FL618/4 ZZ deep groove ball bearings

Exceptional Bearing ISO-GARD® Flange
29519-0260 0.24 lb

4 mm x 9 mm x 4 mm NTN 684AX50ZZ deep groove ball bearings

Cast Iron 7 in
Open End Cap 16

4 mm x 9 mm x 4 mm ZEN F684-2Z deep groove ball bearings

12 mm Periodic Lubrication
Plain Sleeve 8 mm

AST 684H-2RS deep groove ball bearings

16.5625 in Non-Expansion Bearin
Round Four-Bolt Base

4 mm x 9 mm x 4 mm ZEN 684-2RS deep groove ball bearings

Open Separable Inner Ring
Uncoated 52100 Steel

4 mm x 9 mm x 4 mm ZEN F684-2RS deep groove ball bearings

C0 9300
ABEC 9/7 ( 60 mm

4 mm x 9 mm x 4 mm ISO FL618/4 ZZ deep groove ball bearings

9200 lbf 24 mm
Inner Ring 7100 lbf

4 mm x 9 mm x 4 mm FBJ F684ZZ deep groove ball bearings

Heavy Duty Set Screw
2.4375 in UC312-39

4 mm x 9 mm x 4 mm ZEN 684-2Z deep groove ball bearings

6 ° 52100 Bearing Steel
0.7650 in GEZ

4 mm x 9 mm x 4 mm NTN W684AX50Z deep groove ball bearings

Set Screw 1.1875 in
1-23/32 in 7/16-14
1/4