23 Teeth Sprockets | McMaster-Carr

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Roller Chain Trade Number

Number of Teeth

Shaft Type

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Bore Type

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Hub Diameter

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Shaft Mount Type

Keyway Width

Component

Sprocket Type

Keyway Depth

Width

Chain Standard

Bushing Trade Number

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325 Products

Sprockets

For Single Strand

Sprocket teeth mesh with your roller chain to smoothly transmit power. These U.S.-made sprockets have machined teeth for a more precise fit than flame-cut or punched teeth, allowing them to glide in and out of the chain to reduce wear and extend chain life.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

Wear-Resistant Steel with Hardened Teeth—These sprockets have teeth that are hardened from the tip to the base so they withstand chain contact and wear evenly. That means fewer broken teeth and a longer lifespan than sprockets with unhardened or tip-hardened teeth. Steel is best for dry environments since moisture will cause it to rust.

Corrosion-Resistant 18-8 Stainless Steel—Won't corrode from frequent washdowns and mild chemicals, including ammonia often found in cleaning solutions.

Finished Bore—Mount these sprockets onto your shaft and secure with a set screw—no machining required.

Plain Bore—Plain bore sprockets give you options—machine a custom bore, weld, or press-fit them in place. They're sized to the minimum shaft diameter listed and are machinable up to the maximum.

	For Roller Chain							Keyway
	Trade No.	Std.	Pitch	No. of Teeth	OD	Bore Type	For Shaft Dia.	Wd.	Dp.		Each
For Single Strand







				Steel

				25	ANSI	1/4"	23	2"	Finished	1/4"	—	—	00000000	000000


				25	ANSI	1/4"	23	2"	Finished	3/8"	—	—	00000000	00000
				25	ANSI	1/4"	23	2"	Finished	1/2"	—	—	00000000	00000
				25	ANSI	1/4"	23	2"	Finished	5/8"	3/16"	3/32"	00000000	00000
				25	ANSI	1/4"	23	2"	Finished	3/4"	3/16"	3/32"	00000000	00000
				25	ANSI	1/4"	23	2"	Finished	7/8"	3/16"	3/32"	00000000	00000
				25	ANSI	1/4"	23	2"	Finished	1"	1/4"	1/8"	00000000	00000
				25	ANSI	1/4"	23	2"	Plain	1/4" to 1"	—	—	0000000	00000
				35	ANSI	3/8"	23	2 15/16"	Finished	1/2"	—	—	00000000	00000
				35	ANSI	3/8"	23	2 15/16"	Finished	5/8"	3/16"	3/32"	00000000	00000
				35	ANSI	3/8"	23	2 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000


				35	ANSI	3/8"	23	2 15/16"	Finished	7/8"	3/16"	3/32"	0000000	00000
				35	ANSI	3/8"	23	2 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
				35	ANSI	3/8"	23	2 15/16"	Plain	1/2" to 1 3/8"	—	—	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	5/8"	3/16"	3/32"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	7/8"	3/16"	3/32"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 3/16"	1/4"	1/8"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	00000


				40	ANSI	1/2"	23	3 15/16"	Finished	1 3/8"	5/16"	5/32"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 7/16"	3/8"	3/16"	00000000	00000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 1/2"	3/8"	3/16"	0000000	00000
				40	ANSI	1/2"	23	3 15/16"	Plain	5/8" to 2"	—	—	00000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	5/8"	3/16"	3/32"	00000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	7/8"	3/16"	3/32"	0000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	00000
				41	ANSI	1/2"	23	3 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	00000


				41	ANSI	1/2"	23	3 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	7/8"	3/16"	3/32"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 3/16"	1/4"	1/8"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 3/8"	5/16"	5/32"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 7/16"	3/8"	3/16"	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	00000


				50	ANSI	5/8"	23	4 15/16"	Plain	3/4" to 2"	—	—	00000000	00000
				60	ANSI	3/4"	23	5 15/16"	Finished	1"	1/4"	1/8"	00000000	000000
				60	ANSI	3/4"	23	5 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	000000
				60	ANSI	3/4"	23	5 15/16"	Finished	1 3/16"	1/4"	1/8"	00000000	000000
60				ANSI	3/4"	23	5 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	000000
60	ANSI			3/4"	23	5 15/16"	Finished	1 3/8"	5/16"	5/32"	0000000	000000
60	ANSI			3/4"	23	5 15/16"	Finished	1 7/16"	3/8"	3/16"	00000000	000000
60	ANSI			3/4"	23	5 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	000000
60	ANSI			3/4"	23	5 15/16"	Finished	1 5/8"	3/8"	3/16"	00000000	000000
60	ANSI	3/4"		23	5 15/16"	Finished	1 3/4"	3/8"	3/16"	00000000	000000
60	ANSI	3/4"	23	5 15/16"	Finished	1 15/16"	1/2"	1/4"	0000000	000000
60	ANSI	3/4"	23	5 15/16"	Plain	3/4" to 2 3/4"	—	—	00000000	00000
05B	ISO	8 mm	23	62 mm	Plain	8 mm to 17 mm	—	—	00000000	00000
06B	ISO	3/8"	23	74 mm	Plain	12 mm to 32 mm	—	—	0000000	00000
08B	ISO	1/2"	23	100 mm	Plain	12 mm to 51 mm	—	—	00000000	00000



		Wear-Resistant Steel with Hardened Teeth

		35	ANSI	3/8"	23	2 15/16"	Finished	1/2"	—	—	00000000	00000


		35	ANSI	3/8"	23	2 15/16"	Finished	5/8"	3/16"	3/32"	00000000	00000
		35	ANSI	3/8"	23	2 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
		35	ANSI	3/8"	23	2 15/16"	Finished	7/8"	3/16"	3/32"	00000000	00000
		35	ANSI	3/8"	23	2 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	5/8"	3/16"	3/32"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	7/8"	3/16"	3/32"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1 3/16"	1/4"	1/8"	00000000	00000


		40	ANSI	1/2"	23	3 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1 3/8"	5/16"	5/32"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1 7/16"	3/8"	3/16"	00000000	00000
		40	ANSI	1/2"	23	3 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	3/4"	3/16"	3/32"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	7/8"	3/16"	3/32"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1"	1/4"	1/8"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1 1/8"	1/4"	1/8"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1 3/16"	1/4"	1/8"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	00000


		50	ANSI	5/8"	23	4 15/16"	Finished	1 3/8"	5/16"	5/32"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1 7/16"	3/8"	3/16"	00000000	00000
		50	ANSI	5/8"	23	4 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	00000




				Corrosion-Resistant 18-8 Stainless Steel

				35	ANSI	3/8"	23	2 15/16"	Finished	1/2"	1/8"	1/16"	00000000	000000


				35	ANSI	3/8"	23	2 15/16"	Finished	5/8"	3/16"	3/32"	00000000	000000
				35	ANSI	3/8"	23	2 15/16"	Finished	3/4"	3/16"	3/32"	00000000	000000
				35	ANSI	3/8"	23	2 15/16"	Finished	7/8"	3/16"	3/32"	00000000	000000
				35	ANSI	3/8"	23	2 15/16"	Finished	1"	1/4"	1/8"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	5/8"	3/16"	3/32"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	3/4"	3/16"	3/32"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	7/8"	3/16"	3/32"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	1"	1/4"	1/8"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 1/4"	1/4"	1/8"	00000000	000000
				40	ANSI	1/2"	23	3 15/16"	Finished	1 1/2"	3/8"	3/16"	00000000	000000

Flat Sprockets

Save space and cut weight—these sprockets don’t have a raised hub so they’re best for tight spots and lightweight designs. Bolt or weld them to components and mounting surfaces, or add a custom hub. Although they are versatile, they’re harder to align than sprockets with hubs.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	OD	Bore Type	For Shaft Dia.		Each
For Single Strand







				Steel

				35	ANSI	3/8"	23	2 15/16"	Plain	1/2" to 2 5/16"	00000000	000000


				40	ANSI	1/2"	23	3 15/16"	Plain	5/8" to 3 3/32"	0000000	00000
				50	ANSI	5/8"	23	4 15/16"	Plain	3/4" to 3 57/64"	0000000	00000
				60	ANSI	3/4"	23	5 15/16"	Plain	3/4" to 4 43/64"	0000000	00000
				80	ANSI	1"	23	7 7/8"	Plain	15/16" to 6 1/4"	0000000	00000

Taper-Lock Bushing-Bore Sprockets


Sprocket Shown with Bushing (Sold Separately)	For Single Strand

Quickly swap or service parts in tight spaces—no press-fitting or special tools required. Taper-lock bushings mount flush inside the sprocket hub for a slim profile. Mount a bushing (sold separately) on your shaft, slide the sprocket over it, and tighten the included set screws. As you tighten, the bushing grips the shaft and pulls it into your sprocket for a secure hold.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	OD	For Bushing Trade No.		Each
For Single Strand







				Steel

				35	ANSI	3/8"	23	2 15/16"	1210	0000000	000000


				40	ANSI	1/2"	23	3 15/16"	1610	0000000	00000
				50	ANSI	5/8"	23	4 15/16"	2012	0000000	000000
				60	ANSI	3/4"	23	5 15/16"	2012	0000000	000000




						Wear-Resistant Steel with Hardened Teeth

						10B	ISO	5/8"	23	125 mm	2012	00000000	000000

Bushings

Taper-Lock

Bushing

	Bushing Trade No.	For Shaft Dia.		Each
Taper-Lock Bushing



		1210	1/2"	000000000	000000


		1210	5/8"	000000000	00000
		1210	3/4"	000000000	00000
		1210	7/8"	000000000	00000
		1210	15/16"	000000000	00000
		1210	1"	000000000	00000
		1210	1 1/16"	000000000	00000
		1210	1 1/8"	000000000	00000
		1210	1 3/16"	000000000	00000
		1210	1 1/4"	000000000	00000
		1210	14 mm	000000000	00000


		1210	16 mm	000000000	00000
		1210	18 mm	000000000	00000
		1210	20 mm	000000000	00000
		1210	22 mm	000000000	00000
		1210	24 mm	000000000	00000
		1210	25 mm	000000000	00000
		1210	28 mm	000000000	00000
		1210	30 mm	000000000	00000
		1210	32 mm	000000000	00000
		1610	1/2"	000000000	00000


		1610	5/8"	000000000	00000
		1610	3/4"	000000000	00000
		1610	13/16"	000000000	00000
		1610	7/8"	000000000	00000
		1610	15/16"	000000000	00000
		1610	1"	000000000	00000
		1610	1 1/16"	000000000	00000
		1610	1 1/8"	000000000	00000
		1610	1 3/16"	000000000	00000
		1610	1 1/4"	000000000	00000


		1610	1 5/16"	000000000	00000
		1610	1 3/8"	000000000	00000
		1610	1 7/16"	000000000	00000
		1610	1 1/2"	000000000	00000
		1610	1 9/16"	000000000	00000
		1610	1 5/8"	000000000	00000
		1610	1 11/16"	000000000	00000
		1610	14 mm	000000000	00000
		1610	16 mm	000000000	00000
		1610	18 mm	000000000	00000


		1610	19 mm	000000000	00000
		1610	20 mm	000000000	00000
		1610	22 mm	000000000	00000
		1610	24 mm	000000000	00000
		1610	25 mm	000000000	00000
		1610	28 mm	000000000	00000
		1610	30 mm	000000000	00000
		1610	32 mm	000000000	00000
		1610	35 mm	000000000	00000
		1610	38 mm	000000000	00000

2012	1/2"	000000000	00000
2012	5/8"	000000000	00000
2012	3/4"	000000000	00000
2012	7/8"	000000000	00000
2012	15/16"	000000000	00000
2012	1"	000000000	00000
2012	1 1/8"	000000000	00000
2012	1 3/16"	000000000	00000
2012	1 1/4"	000000000	00000
2012	1 3/8"	000000000	00000
2012	1 7/16"	000000000	00000
2012	1 1/2"	000000000	00000
2012	1 9/16"	000000000	00000
2012	1 5/8"	000000000	00000
2012	1 11/16"	000000000	00000
2012	1 3/4"	000000000	00000
2012	1 7/8"	000000000	00000
2012	1 15/16"	000000000	00000
2012	2"	000000000	00000
2012	2 1/8"	000000000	00000
2012	20 mm	000000000	00000
2012	22 mm	000000000	00000
2012	24 mm	000000000	00000
2012	25 mm	000000000	00000
2012	28 mm	000000000	00000
2012	30 mm	000000000	00000
2012	32 mm	000000000	00000
2012	35 mm	000000000	00000
2012	38 mm	000000000	00000
2012	40 mm	000000000	00000
2012	42 mm	000000000	00000
2012	45 mm	000000000	00000
2012	50 mm	000000000	00000

Idler Sprockets

Maintain constant tension on your roller chain to reduce wear and vibration. These sprockets press against the chain to take up slack and rotate freely on bearings to keep the chain moving smoothly. They’re often paired with roller chain tensioners.

For Single Strand

Ball Bearing

Ball Bearing—Smoother than smooth—the balls inside these bearings roll nearly friction-free to handle high speeds. All are sealed to keep lubricant in and dust out.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch, mm	No. of Teeth	For Shaft Dia., mm	OD, mm	Bearing Material		Each
Ball Bearing







				Steel

				05B	ISO	8	23	16	62	Steel	0000000	000000

Conveyor Belt Drive Sprockets

Sprockets drive belting to keep it running smoothly.

One Piece

For Belt Series Number

810 and 815

For Belt Series No.	For Shaft Dia.	No. of Teeth	OD	Wd.	Material	Temp. Range, ° F		Each
810, 815	0.80"	23	5.59"	1.67"	Iron	0 to 480	0000000	0000000

Two Piece


For Belt Series Number 820	For Belt Series Number 810 and 815

Sprockets with two-piece construction are easier to install.

For Belt Series No.	For Shaft Dia.	No. of Teeth	OD	Wd.	Material	Color	Screw Material	Nut Material	Temp. Range, ° F		Each
820	1.00"	23	5.59"	2.09"	Nylon	Black	Stainless Steel	Nickel-Plated Brass	32 to 190	00000000	0000000
820	1.25"	23	5.59"	2.09"	Nylon	Black	Stainless Steel	Nickel-Plated Brass	32 to 190	00000000	000000
810, 815	0.85"	23	5.59"	1.67"	Nylon	White	Stainless Steel	Stainless Steel	32 to 190	0000000	00000

Quick-Disconnect (QD) Bushing-Bore Sprockets


Sprocket Shown with Bushing (Sold Separately)	For Single Strand

Quickly swap or service parts—no press-fitting or special tools required. Mount a quick-disconnect bushing (sold separately) on your shaft, slide the sprocket over it, and tighten the included set screws. As you tighten, the bushing grips the shaft and pulls it into your sprocket for a secure hold.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	OD	For Bushing Trade No.		Each
For Single Strand







				Steel

				35	ANSI	3/8"	23	2 15/16"	JA	00000000	000000


				40	ANSI	1/2"	23	3 15/16"	SH	00000000	00000
				50	ANSI	5/8"	23	4 15/16"	SDS	00000000	00000
				60	ANSI	3/4"	23	5 15/16"	SDS	00000000	000000

Bushings

Quick-Disconnect

Bushing

	Bushing Trade No.	For Shaft Dia.		Each
Quick-Disconnect Bushing



		JA	1/2"	00000000	000000


		JA	9/16"	00000000	00000
		JA	5/8"	00000000	00000
		JA	3/4"	00000000	00000
		JA	13/16"	00000000	00000
		JA	7/8"	00000000	00000
		JA	15/16"	00000000	00000
		JA	1"	00000000	00000
		JA	1 1/16"	00000000	00000
		JA	1 1/8"	00000000	00000
		JA	1 3/16"	00000000	00000


		JA	1 1/4"	00000000	00000
		SH	1/2"	00000000	00000
		SH	5/8"	00000000	00000
		SH	11/16"	00000000	00000
		SH	3/4"	00000000	00000
		SH	7/8"	00000000	00000
		SH	15/16"	00000000	00000
		SH	1"	00000000	00000
		SH	1 1/16"	00000000	00000
		SH	1 1/8"	00000000	00000


		SH	1 3/16"	00000000	00000
		SH	1 1/4"	00000000	00000
		SH	1 5/16"	00000000	00000
		SH	1 3/8"	00000000	00000
		SH	1 7/16"	00000000	00000
		SH	1 1/2"	00000000	00000
		SH	1 5/8"	00000000	00000
		SH	1 11/16"	00000000	00000
		SH	22 mm	0000000	00000
		SH	24 mm	0000000	00000


		SH	25 mm	0000000	00000
		SH	28 mm	0000000	00000
		SH	30 mm	0000000	00000
		SH	32 mm	0000000	00000
		SH	35 mm	0000000	00000
		SDS	1/2"	00000000	00000
		SDS	9/16"	00000000	00000
		SDS	5/8"	00000000	00000
		SDS	3/4"	00000000	00000
		SDS	7/8"	00000000	00000


		SDS	15/16"	00000000	00000
		SDS	1"	00000000	00000
		SDS	1 1/16"	00000000	00000
		SDS	1 1/8"	00000000	00000
		SDS	1 3/16"	00000000	00000
		SDS	1 1/4"	00000000	00000
		SDS	1 5/16"	00000000	00000
		SDS	1 3/8"	00000000	00000
		SDS	1 7/16"	00000000	00000
		SDS	1 1/2"	00000000	00000

SDS	1 9/16"	00000000	00000
SDS	1 5/8"	00000000	00000
SDS	1 11/16"	00000000	00000
SDS	1 3/4"	00000000	00000
SDS	1 7/8"	00000000	00000
SDS	1 15/16"	00000000	00000
SDS	2"	00000000	00000
SDS	24 mm	0000000	00000
SDS	25 mm	0000000	00000
SDS	28 mm	0000000	00000
SDS	30 mm	0000000	00000
SDS	32 mm	0000000	00000
SDS	35 mm	0000000	00000
SDS	38 mm	0000000	00000
SDS	40 mm	0000000	00000
SDS	42 mm	0000000	00000

High-Torque Split-Tapered Bushing-Bore Sprockets

For Single Strand

Maximize power transfer in high-torque applications. Compatible split-tapered bushings have a tapered barrel that’s split on both sides for a tighter grip than quick-disconnect or taper-lock bushings. Use these sprockets to quickly swap or service parts—no press-fitting or special tools required. Mount a bushing (sold separately) on your shaft, slide the sprocket over it, and tighten the included set screws. As you tighten, the bushing grips the shaft and pulls it into your sprocket for a secure hold.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	OD	For Bushing Trade No.		Each
For Single Strand







				Steel

				50	ANSI	5/8"	23	4 15/16"	Q1	0000000	0000000

Bushings

Split-Tapered

Bushing

	For Shaft Dia.		Each
Split-Tapered Bushing



	Q1	1"	00000000	000000


	Q1	1 1/8"	00000000	00000
	Q1	1 3/16"	00000000	00000
	Q1	1 1/4"	00000000	00000
	Q1	1 3/8"	00000000	00000
	Q1	1 1/2"	00000000	00000
	Q1	1 5/8"	00000000	00000
	Q1	1 3/4"	00000000	00000
	Q1	1 7/8"	00000000	00000
	Q1	2"	00000000	00000
	Q1	40 mm	00000000	00000


	Q1	60 mm	00000000	00000

Metal Spur Gears

Our strongest spur gears for transferring motion. They’re better than plastic gears for high-load, high-speed, and heavy duty applications. 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.

Combine gears with different numbers of teeth to change speed and torque in your assembly. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Gears


Gear with Round Bore and Set Screw	Gear with Round or Round/Machinable Bore	Gear with Keyed Bore and Set Screw

20° Pressure Angle—The current industry standard, these 20° pressure angle spur gears have thicker, stronger teeth than 14½° pressure angle gears.

14 1/2° Pressure Angle—A former industry standard, 14½° pressure angle gears are often found in older machinery.

Steel—Steel gears have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

Brass—Brass gears are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.

							Hub				Keyway
	Gear Pitch	Gear Module	No. of Teeth	Gear Pitch Dia.	OD	Face Wd.	Dia.	Wd.	Bore Type	For Shaft Dia.	Wd.	Dp.	Tooth Heat Treatment	Material		Each
20° Pressure Angle







				Brass

				—	0.8	23	18.4 mm	20 mm	4 mm	15 mm	8 mm	Round Bore with Set Screw	5 mm	—	—	—	Brass	00000000	000000


				—	1	23	23 mm	25 mm	6 mm	20 mm	8 mm	Round Bore with Set Screw	6 mm	—	—	—	Brass	00000000	00000


				14 1/2° Pressure Angle







								Steel

								20	—	23	1.15"	1.25"	3/8"	0.969"	0.375"	Round Bore	3/8"	—	—	Not Hardened	1144 Carbon Steel	0000000	00000


								20	—	23	1.15"	1.25"	3/8"	0.969"	0.375"	Keyed Bore with Set Screw	3/8"	0.094"	0.047"	Not Hardened	1144 Carbon Steel	0000000	00000

Gear Racks


20° Pressure Angle—Rectangular	14 1/2° Pressure Angle—Rectangular

These racks match with spur gears to convert rotary motion to linear motion. For components to mesh correctly, they must have the same pressure angle and pitch/module.

Steel—Steel gear racks have strong and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

Brass—Brass gear racks are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.

	Pitch Ht.	Ht.	Face Wd.	Tooth Heat Treatment	Material	No. of Mounting Holes		Each
20° Pressure Angle—Rectangular







	Brass

	—	0.8	300 mm	9.2 mm	10 mm	4 mm	—	Brass	—	00000000	000000


	—	1	300 mm	9 mm	10 mm	6 mm	—	Brass	—	00000000	00000


	14 1/2° Pressure Angle—Rectangular







					Steel

					20	—	2 ft.	0.325"	3/8"	3/8"	Not Hardened	1018 Low-Carbon Steel	—	0000000	00000


					20	—	4 ft.	0.325"	3/8"	3/8"	Not Hardened	1018 Low-Carbon Steel	12	000000	000000
					20	—	4 ft.	0.325"	3/8"	3/8"	Not Hardened	1215 Carbon Steel	—	00000000	00000
					20	—	6 ft.	0.325"	3/8"	3/8"	Not Hardened	1215 Carbon Steel	—	00000000	00000

Timing Belt Pulleys

Bushing Bore

Keep your drive system in sync. Trapezoidal teeth mesh with matching belts to synchronize motion. With the original tooth profile, these pulleys handle enough torque for most applications. If you need high torque or precise starts and stops, consider curved tooth profiles, such as GT and HTD pulleys.

Iron—Strong but best for dry environments since moisture will cause them to rust.

Bushing Bore—Quickly swap or service parts in tight spaces—no press-fitting or special tools required. Mount a bushing (sold separately) on your shaft and slide the pulley over it. As you tighten the included set screws, the bushing grips the shaft and draws it into the pulley, creating a final hold that is more secure than with set screws alone.

					For Bushing
	For Max. Belt Wd.	Pitch	No. of Teeth	Bore Type	Type	Trade No.	Pitch Dia.	No. of Flanges		Each
For XH Trade Size







				Iron

				2"	0.875"	23	Bushing	Quick Disconnect (QD)	SK	6.406"	2	0000000	0000000

Bushings

Quick-Disconnect

Bushing

Bushing
Type	Trade No.	For Shaft Dia.		Each
Quick Disconnect (QD)	SK	1/2"	00000000	000000
Quick Disconnect (QD)	SK	5/8"	00000000	00000
Quick Disconnect (QD)	SK	3/4"	00000000	00000
Quick Disconnect (QD)	SK	7/8"	00000000	00000
Quick Disconnect (QD)	SK	15/16"	00000000	00000
Quick Disconnect (QD)	SK	1"	00000000	00000
Quick Disconnect (QD)	SK	1 1/16"	00000000	00000
Quick Disconnect (QD)	SK	1 1/8"	00000000	00000
Quick Disconnect (QD)	SK	1 3/16"	00000000	00000
Quick Disconnect (QD)	SK	1 1/4"	00000000	00000
Quick Disconnect (QD)	SK	1 5/16"	00000000	00000
Quick Disconnect (QD)	SK	1 3/8"	00000000	00000
Quick Disconnect (QD)	SK	1 7/16"	00000000	00000
Quick Disconnect (QD)	SK	1 1/2"	00000000	00000
Quick Disconnect (QD)	SK	1 9/16"	00000000	00000
Quick Disconnect (QD)	SK	1 5/8"	00000000	00000
Quick Disconnect (QD)	SK	1 11/16"	00000000	00000
Quick Disconnect (QD)	SK	1 3/4"	00000000	00000
Quick Disconnect (QD)	SK	1 7/8"	00000000	00000
Quick Disconnect (QD)	SK	1 15/16"	00000000	00000
Quick Disconnect (QD)	SK	2"	00000000	00000
Quick Disconnect (QD)	SK	2 1/8"	00000000	00000
Quick Disconnect (QD)	SK	2 3/16"	00000000	00000
Quick Disconnect (QD)	SK	2 1/4"	00000000	00000
Quick Disconnect (QD)	SK	2 3/8"	00000000	00000
Quick Disconnect (QD)	SK	2 7/16"	00000000	00000
Quick Disconnect (QD)	SK	2 1/2"	00000000	00000
Quick Disconnect (QD)	SK	2 5/8"	00000000	00000
Quick Disconnect (QD)	SK	24 mm	0000000	00000
Quick Disconnect (QD)	SK	25 mm	0000000	00000
Quick Disconnect (QD)	SK	28 mm	0000000	00000
Quick Disconnect (QD)	SK	30 mm	0000000	00000
Quick Disconnect (QD)	SK	32 mm	0000000	00000
Quick Disconnect (QD)	SK	35 mm	0000000	00000
Quick Disconnect (QD)	SK	38 mm	0000000	00000
Quick Disconnect (QD)	SK	40 mm	0000000	00000
Quick Disconnect (QD)	SK	42 mm	0000000	00000
Quick Disconnect (QD)	SK	48 mm	0000000	00000
Quick Disconnect (QD)	SK	50 mm	0000000	00000
Quick Disconnect (QD)	SK	55 mm	0000000	00000