Clamping Sprockets | McMaster-Carr

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	System of Measurement System of Measurement

Metric

	For Shaft Diameter For Shaft Diameter

	Number of Teeth Number of Teeth

14
15
16
18
20
24
25
28

30
32
35
36
40
45
48
50

60
64
70
80
90
100
120

	Material Material

Stainless Steel

Plastic

	Bore Type Bore Type	Show

	Clamping

	Bore Type Bore Type	Hide

	Component Component

	Gear

	Module Module

0.5

	Pitch Diameter Pitch Diameter

	Gear Type Gear Type

	Spur

	Face Width Face Width

	OD OD

	Pressure Angle Pressure Angle

20°

	Clamping Screw Thread Size Clamping Screw Thread Size

M2.5

	Overall Width Overall Width

	Hub Width Hub Width

	Hub Diameter Hub Diameter

	Teeth Heat Treatment Teeth Heat Treatment

Not Hardened

	Hub Material Hub Material

Stainless Steel

	Color Color

	White

	Fabrication Fabrication

Molded

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73 Products

About Gears

Metal 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. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. 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. To minimize your footprint, mount one or more standard gears inside of an internal gear.

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

Gears with teeth that are not hardened can be hardened to fit your application.

Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.

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

Metric Gears

Gear with Clamping Bore and Clamping Screw

									Hub
Module	Number of Teeth	Pitch Dia., mm	OD, mm	Face Wd., mm	Overall Wd., mm	For Shaft Dia., mm	Material	Teeth Heat Treatment	Dia., mm	Wd., mm	Clamping Screw Thread Size		Each
Clamping Bore with Clamping Screw
0.5	16	8	9	7	22	4	303 Stainless Steel	Not Hardened	14	8	M2.5	0000000	000000
0.5	18	9	10	7	22	4	303 Stainless Steel	Not Hardened	14	8	M2.5	0000000	00000
0.5	20	10	11	7	22	4	303 Stainless Steel	Not Hardened	14	8	M2.5	0000000	00000
0.5	24	12	13.5	7	22	5	303 Stainless Steel	Not Hardened	14	8	M2.5	0000000	00000
0.5	25	12.5	13.5	7	22	5	303 Stainless Steel	Not Hardened	14	8	M2.5	0000000	00000
0.5	28	14	15	5	15	5	303 Stainless Steel	Not Hardened	14	10	M2.5	0000000	00000
0.5	30	15	16	5	15	5	303 Stainless Steel	Not Hardened	14	10	M2.5	0000000	00000
0.5	32	16	17	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	35	17.5	18	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	36	18	19	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	40	20	21	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	45	22.5	23	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	48	24	25	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	50	25	26	5	15	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
0.5	60	30	31	5	15	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
0.5	64	32	33	5	15	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
0.5	70	35	36	5	15	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
0.5	80	40	41	5	19	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	00000
0.5	90	45	46	5	19	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
0.5	100	50	51	5	19	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
0.5	120	60	61	5	19	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	14	14	16	8	25	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	15	15	17	8	25	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	16	16	18	8	25	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	18	18	20	6	16	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	20	20	22	6	16	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	24	24	26	6	16	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	25	25	27	6	16	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	28	28	30	6	16	6	303 Stainless Steel	Not Hardened	17	10	M3	0000000	00000
1	30	30	32	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
1	32	32	34	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
1	35	35	37	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
1	36	36	38	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
1	40	40	42	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	00000
1	45	45	47	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	000000
1	48	48	50	6	16	8	303 Stainless Steel	Not Hardened	19	10	M3	0000000	000000
1	50	50	52	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	60	60	62	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	64	64	66	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	70	70	72	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	80	80	82	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	90	90	92	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	000000
1	100	100	102	6	20	10	303 Stainless Steel	Not Hardened	24	14	M4	0000000	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	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	36	18	19	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	000000
0.5	40	20	21	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	45	22.5	23.5	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	48	24	25	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	50	25	26	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	60	30	31	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	64	32	33	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	70	35	36	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	80	40	41	5	13.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
0.5	90	45	46	5	15	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
0.5	100	50	51	5	15	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
0.5	120	60	61	5	15	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	20	20	22	6	14.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
1	24	24	26	6	14.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
1	25	25	27	6	14.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
1	28	28	30	6	14.5	5	Acetal Plastic	Molded	White	14	8.5	M2.5	00000000	00000
1	30	30	32	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	32	32	34	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	35	35	37	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	36	36	38	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	40	40	42	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	45	45	47	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	48	48	50	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	50	50	52	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	60	60	62	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	64	64	66	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	00000
1	70	70	72	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	000000
1	80	80	82	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	000000
1	90	90	92	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	000000
1	100	100	102	6	16	8	Acetal Plastic	Molded	White	19	10	M3	00000000	000000

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