SD Series Common Pre-Assembled Ball Differential. Two Ball Bearings Are Also Incorporated Inside The Joint, Enhancing Turning Power With Light Operation.
Sold In The Condition As Shown In The Photo,
So No Assembly Effort Is Required.
The Degree Of Tightening Of The Differential Is Appropriately
Adjusted In Advance,
But Please Adjust To Your Desired Hardness Before Incorporation
And Use.