H1612R Steel Helical Gear 3/4" Plain Bore Click here for spec sheets:

Click here for spec sheets: CUCNPT Spec Sheet

commonly referred to as "pin and block" type

Click here for spec sheet: UCTRS Spec Sheet

While 20° PA is generally recognized as having a higher load-carrying capacity

And remember that spur gears and rack are available via our Guaranteed Same Day Shipment Program

H1612R Steel Helical Gear 3/4" Plain Bore Click here for spec sheets:Boston Gears stock helical gears are manufactured in both right and left handed configurations with an industry standard 45 helix angle to transmit motion and power between non intersecting shafts that are parallel or at 90 to each other. For parallel shaft operation, helical gears with opposite hand helix angles are required. For shafts at 90, a same hand helix angles must be used. For parallel shaft applications, the overlapping tooth contact of our