Superfinishing Ball Bearing Raceway

To improve bearing quality by reducing the surface waviness on the ball track to produce a quieter, smoother functioning bearing assembly.

Finish the ball track using a two step process employing Rough and Finish stones in succession.

Ball Bearing Outer Ring

52100 Steel

58 to 62 Rc C

0.4 Ra um (16 Ra u”)

Castrol Honilo 980

2 Station – Rough and Finish Configuration

Rough: FA800-160GV51S
Finish: GC1200-95GV2W

11.7 x 15 x 75mm; 9R (.460″ x .590″ x 3″; .35″R)

Use of Darmann products resulted in better quality, process improvements and cost reductions. These results are summarized below:

Final finish improved from 0.03 to 0.02um Ra

Assemblies qualifying for highest quality rating increased by 33%

Finished goods inventory reduced by 20%

Product cost reduced by 30%