Worm Gearboxes

This shaft is designed to fit into a worm gearbox and act as an output shaft. You can install it by following these steps:

• Put the keys into the keyways on the shaft.
• Slide the long end of the shaft through the gearbox.
• The long end of the shaft should stick out the other end of the gearbox; slide the washer onto that end.
• Put the snap ring on after the washer (There is a groove at the end of the shaft for the ring to rest inside).

Product			Gearbox Properties
Image	Part Number	Price	Gearbox Series	Gear Ratio	Maximum Strength of Gears	Input Shaft Diameter
	TRM4401_0	$62.90	40	30:1	45 N·m	11 mm

Shaft Couplers

If you need to connect this shaft to a motor or another device with a shaft, you can use a shaft coupler:

Product			Physical Properties
Image	Part Number	Price	Inner Diameter	Coupling Rated Torque	Coupling Rated Speed
	TRM4323_0	$6.85	19 mm	611.8 kg·cm	4000 RPM
	TRM4327_0	$14.80	19 mm	3.3 Mg·cm	4000 RPM

Pulleys and Sprockets

If you're using a rotary system that requires a lot of torque, you may be interested in pulleys and sprockets. By using a two pulleys or sprockets of different sizes, you can increase the gear ratio of the system. Pulleys and sprockets can also be used to transmit rotation over a long distance. For more guidance on building a transmission system, visit our Rotary Motion Primer. Here is a list of our 19mm bore pulleys and sprockets:

Product			Physical Properties
Image	Part Number	Price	Inner Diameter	Number of Teeth
	TRM4131_0	$7.40	19 mm	50
	TRM4132_0	$12.95	19 mm	72
	TRM4153_0	$4.65	19 mm	20

Product Specifications

• Mechanical Drawings
• Rotary motion primer