This compact gearbox is designed to provide one reduction from the input motor. The output shaft is well secured, and has a 1/2" output diameter. This gearbox comes standard with an overdrive gear set, with a 35 tooth CIM gear and 29 tooth output gear, providing a 1:1.21 speed-increasing (overdrive) ratio. This gearbox is shipped un-assembled. Two different shaft plates are included in this kit, allowing the user to mount it various ways. These two different shaft plates can be seen in the product pictures above. Motor input can include one CIM motor, or one AM Planetary Gearbox. Weight: 1.87 pounds Hardware (all unassembled): One - Housing Two - Shaft plates, one small, one large with flange mounting holes One - 35 tooth CIM gear (8mm bore with 2mm keyway) One - 29 tooth output gear (1/2" hex bore) One - 4140 steel output shaft, 1/2" dia. with 1/8" keyway One - FR8ZZ, 1/2" bore bearing One- Nylon spacer, 185x385 One - 2mm x 2mm machine key One - 1/8x1/8x0.7 machine key Two - #10-32 x 5/8 screws, for motor mounting Four - #10-32 x 3/4 screws One - 1/4-20 x 1/2 screw One - 1/4 washer Items NOT Included: CIM Motor Encoder or other feedback sensors. Motor Input: Designed for one CIM motor or AM Planetary Gearbox Gearing and Speed: This gearbox is set up to be an overdrive gearbox, with using standard parts. 1:1.21 overall ratio (speed increasing) 35 tooth CIM gear (4140 steel, 8mm bore with 2mm keyway) 29 tooth output gear (4140 steel, 1/2" hex bore) Optional Gears (purchased separately): 1: 1.67 optional ratio (speed increasing), with 40 tooth CIM gear (4140 steel, 8mm bore with 2mm keyway) and 24 tooth output gear (4140 steel, 1/2" hex bore)
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