41 / 40 BB 12 Tooth IDLER Sprocket 1/2" pitch x 1/4" wide teeth with cnc machined pocket for TWO 1.125" OD x .80".
The bearings are included, your choice of two 3/8" or 1/2" ID bearings.
Use the drop down to pick the ID you want.
Reference:
Bearing 3/8" ID x 1-1/8" OD x 3/8" Wide, 16142RS Sealed Ball Bearing. Product ID: 2511
Bearing 1/2" ID x 1-1/8" OD x 3/8" Wide 16162RS Sealed Ball Bearing. Product ID: 2515
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