Stepped Pulleys 4 grooves A-SPA

step4

Outside Diameters - O Width - L Maximum Bore
Keywayed / Plain
Weight Kg Part No.
**2.0" - *3.0" - 4.0" - 5.0" 68 19 / 24 0.68 AL-SA420
2.5" - *3.5" - 4.5" - 5.5" 68 19 / 24 0.85 AL-SA425
3.0" - *4.0" - 5.0" - 6.0" 68 28 / 35 1.00 AL-SA430

When supplied with a finished bore a set screw is located over the keyway and through the base of the groove marked with a single asterisk* 

All but the smallest grooves are machined with profiles to accept both standard V-Belts and where the diameters allow Wedge Belts. Small diameters have a truncated groove profile and can only be used with classical V-Belts. Diameters marked with a double asterisk** have truncated grooves.