61mm OD Sprockets | McMaster-Carr

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.

For technical drawings and 3-D models, click on a part number.

Zinc-Plated Steel
For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.		Each
35mm	61mm	70mm	6,400	0000000	0000000

Metal Bevel Gears

Gear and Pinion Sold Separately

Gear

A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.

A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.

For technical drawings and 3-D models, click on a part number.

Metric Gears

										Hub
Face Wd., mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Wd., mm	For Shaft Dia., mm	Mounting Distance (A), mm	Dia., mm	Wd., mm	Material		Each
Round Bore
11	2	20°	2:1	30	60	61	22	10	31	30	10	Black-Oxide 1045 Carbon Steel	00000000	000000

Metric Pinions

Pinion

										Hub
Face Wd., mm	Module	Pressure Angle	Speed Ratio	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Overall Wd., mm	For Shaft Dia., mm	Mounting Distance (B), mm	Dia., mm	Wd., mm	Material		Each
Round Bore
11	2	20°	2:1	15	30	35	21	8	40	22	8	Black-Oxide 1045 Carbon Steel	00000000	000000

Plastic Gears and Gear Racks—20° Pressure Angle

The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re also known as spur gears.

Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion.

For components to mesh correctly, they must have the same pressure angle and pitch/module.

Acetal gears are best suited for use in light duty machines or for prototyping. Gears with a clamping bore secure to shafts with a clamping screw. They’re easily removed or adjusted without marring your shaft.

For technical drawings and 3-D models, click on a part number.

Metric Gears

Clamping Bore

										Hub
Module	Number of Teeth	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Material	Fabrication	Color	Dia., mm	Wd., mm	Clamping Screw Thread Size		Each
Clamping Bore
0.5	120	60	61	5	15	8	Acetal Plastic	Molded	White	19	10	M3	00000000	000000

About Gears

Quick-Grip Screw-Clamp Bushings

Metal Bevel Gears

Plastic Gears and Gear Racks—20° Pressure Angle