45 Teeth Sprockets | McMaster-Carr

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Number of Teeth

Roller Chain Trade Number

06B

System of Measurement

Shaft Diameter

Pitch

Shaft Type

Bore Type

Material

Chain Type

Chain Standard

Strand Type

Component

Width

Overall Width

Hub Diameter

Shaft Mount Type

Sprocket Type

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

REACH

Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Bushing Trade Number

Performance

261 Products

Sprockets


Finished Bore	Plain Bore

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.

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"	45	3 3/4"	Finished	1/2"	—	—	2737T311	000000


				25	ANSI	1/4"	45	3 3/4"	Finished	5/8"	3/16"	3/32"	2737T312	00000
				25	ANSI	1/4"	45	3 3/4"	Finished	3/4"	3/16"	3/32"	2737T313	00000
				25	ANSI	1/4"	45	3 3/4"	Finished	7/8"	3/16"	3/32"	2737T314	00000
				25	ANSI	1/4"	45	3 3/4"	Finished	1"	1/4"	1/8"	2737T315	00000
				25	ANSI	1/4"	45	3 3/4"	Finished	1 1/4"	1/4"	1/8"	2737T316	00000
				25	ANSI	1/4"	45	3 3/4"	Finished	1 3/8"	5/16"	5/32"	2737T317	00000
				25	ANSI	1/4"	45	3 3/4"	Plain	1/2" to 1 3/8"	—	—	6793K22	00000
				35	ANSI	3/8"	45	5 9/16"	Finished	3/4"	3/16"	3/32"	6236K262	00000
				35	ANSI	3/8"	45	5 9/16"	Finished	7/8"	3/16"	3/32"	6236K265	00000
				35	ANSI	3/8"	45	5 9/16"	Finished	1 1/8"	1/4"	1/8"	6236K266	00000


				35	ANSI	3/8"	45	5 9/16"	Finished	1 3/16"	1/4"	1/8"	6236K267	00000
				35	ANSI	3/8"	45	5 9/16"	Finished	1 1/4"	1/4"	1/8"	6236K268	00000
				35	ANSI	3/8"	45	5 9/16"	Plain	5/8" to 1 1/2"	—	—	6793K138	00000
				40	ANSI	1/2"	45	7 7/16"	Finished	5/8"	3/16"	3/32"	6236K701	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	3/4"	3/16"	3/32"	6236K365	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	7/8"	3/16"	3/32"	6236K366	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1"	1/4"	1/8"	6236K361	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1 1/8"	1/4"	1/8"	6236K367	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1 3/16"	1/4"	1/8"	6236K368	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1 1/4"	1/4"	1/8"	6236K369	000000


				40	ANSI	1/2"	45	7 7/16"	Finished	1 3/8"	5/16"	5/32"	6236K838	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1 7/16"	3/8"	3/16"	6236K363	000000
				40	ANSI	1/2"	45	7 7/16"	Finished	1 1/2"	3/8"	3/16"	6236K771	000000
				40	ANSI	1/2"	45	7 7/16"	Plain	3/4" to 2 3/8"	—	—	6793K162	00000
				41	ANSI	1/2"	45	7 7/16"	Finished	3/4"	3/16"	3/32"	2737T682	00000
				41	ANSI	1/2"	45	7 7/16"	Finished	1"	1/4"	1/8"	2737T684	00000
				41	ANSI	1/2"	45	7 7/16"	Finished	1 1/4"	1/4"	1/8"	2737T685	00000
				41	ANSI	1/2"	45	7 7/16"	Finished	1 1/2"	3/8"	3/16"	2737T687	00000
				50	ANSI	5/8"	45	9 5/16"	Finished	3/4"	3/16"	3/32"	6236K467	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	7/8"	3/16"	3/32"	6236K468	000000


				50	ANSI	5/8"	45	9 5/16"	Finished	1"	1/4"	1/8"	6236K461	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 1/8"	1/4"	1/8"	6236K469	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 3/16"	1/4"	1/8"	6236K466	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 1/4"	1/4"	1/8"	6236K462	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 3/8"	5/16"	5/32"	6236K746	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 7/16"	3/8"	3/16"	6236K747	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 1/2"	3/8"	3/16"	6236K748	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 5/8"	3/8"	3/16"	6236K849	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 3/4"	3/8"	3/16"	6236K749	000000
				50	ANSI	5/8"	45	9 5/16"	Finished	1 15/16"	1/2"	1/4"	6236K751	000000


				50	ANSI	5/8"	45	9 5/16"	Plain	3/4" to 2 1/2"	—	—	6793K185	000000
				60	ANSI	3/4"	45	11 3/16"	Finished	1"	1/4"	1/8"	6236K561	000000
				60	ANSI	3/4"	45	11 3/16"	Finished	1 1/8"	1/4"	1/8"	6236K568	000000
				60	ANSI	3/4"	45	11 3/16"	Finished	1 3/16"	1/4"	1/8"	6236K569	000000
60				ANSI	3/4"	45	11 3/16"	Finished	1 1/4"	1/4"	1/8"	6236K703	000000
60	ANSI			3/4"	45	11 3/16"	Finished	1 3/8"	5/16"	5/32"	6236K567	000000
60	ANSI			3/4"	45	11 3/16"	Finished	1 7/16"	3/8"	3/16"	6236K704	000000
60	ANSI			3/4"	45	11 3/16"	Finished	1 1/2"	3/8"	3/16"	6236K564	000000
60	ANSI			3/4"	45	11 3/16"	Finished	1 5/8"	3/8"	3/16"	6236K705	000000
60	ANSI	3/4"		45	11 3/16"	Finished	1 3/4"	3/8"	3/16"	6236K706	000000
60	ANSI	3/4"	45	11 3/16"	Finished	1 15/16"	1/2"	1/4"	6236K707	000000
60	ANSI	3/4"	45	11 3/16"	Finished	2"	1/2"	1/4"	6236K708	000000
60	ANSI	3/4"	45	11 3/16"	Finished	2 3/16"	1/2"	1/4"	6236K709	000000
60	ANSI	3/4"	45	11 3/16"	Finished	2 7/16"	5/8"	5/16"	6236K711	000000
06B	ISO	3/8"	45	142 mm	Plain	16 mm to 45 mm	—	—	2302K207	00000

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"	45	5 9/16"	Plain	19/32" to 4 61/64"	2299K319	000000


				40	ANSI	1/2"	45	7 7/16"	Plain	23/32" to 6 39/64"	2299K37	00000
				50	ANSI	5/8"	45	9 5/16"	Plain	23/32" to 8 9/32"	2299K58	00000
				60	ANSI	3/4"	45	11 3/16"	Plain	15/16" to 9 15/16"	2299K82	00000
				80	ANSI	1"	45	14 7/8"	Plain	1 1/4" to 13 9/32"	2299K106	000000

Plastic Sprockets

Quiet-running, lightweight, and naturally rust resistant. Choose these sprockets for noise-sensitive areas, designs with weight constraints, and machines that require frequent washdowns. Their teeth mesh with your roller chain to smoothly transmit power. All are made in the U.S.

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



		25	ANSI	1/4"	45	3 3/4"	Plain	1/2" to 1"	60425K34	000000


		35	ANSI	3/8"	45	5 9/16"	Plain	1/2" to 1 3/4"	60425K165	00000
		40	ANSI	1/2"	45	7 7/16"	Plain	1" to 1 3/4"	60425K81	000000

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"	45	5 9/16"	SH	62375K21	000000


				40	ANSI	1/2"	45	7 7/16"	SDS	62375K65	000000
				50	ANSI	5/8"	45	9 5/16"	SDS	62375K85	000000
				60	ANSI	3/4"	45	11 3/16"	SF	62375K105	000000

Bushings

Quick-Disconnect

Bushing

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



		SH	1/2"	6086K211	000000


		SH	5/8"	6086K212	00000
		SH	11/16"	6086K226	00000
		SH	3/4"	6086K213	00000
		SH	7/8"	6086K214	00000
		SH	15/16"	6086K215	00000
		SH	1"	6086K216	00000
		SH	1 1/16"	6086K217	00000
		SH	1 1/8"	6086K218	00000
		SH	1 3/16"	6086K219	00000
		SH	1 1/4"	6086K221	00000


		SH	1 5/16"	6086K848	00000
		SH	1 3/8"	6086K222	00000
		SH	1 7/16"	6086K849	00000
		SH	1 1/2"	6086K223	00000
		SH	1 5/8"	6086K224	00000
		SH	1 11/16"	6086K225	00000
		SH	22 mm	2344K71	00000
		SH	24 mm	2344K11	00000
		SH	25 mm	2344K12	00000
		SH	28 mm	2344K13	00000


		SH	30 mm	2344K14	00000
		SH	32 mm	2344K15	00000
		SH	35 mm	2344K16	00000
		SDS	1/2"	6086K311	00000
		SDS	9/16"	6086K131	00000
		SDS	5/8"	6086K312	00000
		SDS	3/4"	6086K313	00000
		SDS	7/8"	6086K314	00000
		SDS	15/16"	6086K315	00000
		SDS	1"	6086K316	00000


		SDS	1 1/16"	6086K317	00000
		SDS	1 1/8"	6086K318	00000
		SDS	1 3/16"	6086K319	00000
		SDS	1 1/4"	6086K321	00000
		SDS	1 5/16"	6086K851	00000
		SDS	1 3/8"	6086K322	00000
		SDS	1 7/16"	6086K323	00000
		SDS	1 1/2"	6086K324	00000
		SDS	1 9/16"	6086K132	00000
		SDS	1 5/8"	6086K325	00000


		SDS	1 11/16"	6086K852	00000
		SDS	1 3/4"	6086K326	00000
		SDS	1 7/8"	6086K853	00000
		SDS	1 15/16"	6086K854	00000
		SDS	2"	6086K327	00000
		SDS	24 mm	2344K21	00000
		SDS	25 mm	2344K22	00000
		SDS	28 mm	2344K23	00000
		SDS	30 mm	2344K24	00000
		SDS	32 mm	2344K25	00000

SDS	35 mm	2344K26	00000
SDS	38 mm	2344K27	00000
SDS	40 mm	2344K28	00000
SDS	42 mm	2344K29	00000
SF	1/2"	6086K614	00000
SF	5/8"	6086K615	00000
SF	3/4"	6086K616	00000
SF	7/8"	6086K617	00000
SF	1"	6086K619	00000
SF	1 1/8"	6086K622	00000
SF	1 3/16"	6086K623	00000
SF	1 1/4"	6086K624	00000
SF	1 3/8"	6086K625	00000
SF	1 7/16"	6086K626	00000
SF	1 1/2"	6086K627	00000
SF	1 5/8"	6086K628	00000
SF	1 11/16"	6086K629	00000
SF	1 3/4"	6086K631	00000
SF	1 7/8"	6086K632	00000
SF	1 15/16"	6086K633	00000
SF	2"	6086K634	00000
SF	2 1/8"	6086K635	00000
SF	2 3/16"	6086K636	00000
SF	2 1/4"	6086K637	00000
SF	2 3/8"	6086K864	00000
SF	2 7/16"	6086K865	00000
SF	2 1/2"	6086K638	00000
SF	2 5/8"	6086K866	00000
SF	2 3/4"	6086K867	00000
SF	2 15/16"	6086K639	00000
SF	30 mm	2344K75	00000
SF	35 mm	2344K62	00000
SF	40 mm	2344K64	00000
SF	50 mm	2344K67	00000
SF	55 mm	2344K68	00000
SF	60 mm	2344K69	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"	45	5 9/16"	1610	2590K26	000000


				40	ANSI	1/2"	45	7 7/16"	1610	2590K49	000000
				50	ANSI	5/8"	45	9 5/16"	2012	2590K74	000000
				60	ANSI	3/4"	45	11 3/16"	2012	2590K102	000000

Bushings

Taper-Lock

Bushing

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



		1610	1/2"	57095K169	000000


		1610	5/8"	57095K161	00000
		1610	3/4"	57095K162	00000
		1610	13/16"	57095K487	00000
		1610	7/8"	57095K159	00000
		1610	15/16"	57095K489	00000
		1610	1"	57095K163	00000
		1610	1 1/16"	57095K484	00000
		1610	1 1/8"	57095K164	00000
		1610	1 3/16"	57095K311	00000
		1610	1 1/4"	57095K165	00000


		1610	1 5/16"	57095K485	00000
		1610	1 3/8"	57095K166	00000
		1610	1 7/16"	57095K312	00000
		1610	1 1/2"	57095K167	00000
		1610	1 9/16"	57095K486	00000
		1610	1 5/8"	57095K168	00000
		1610	1 11/16"	57095K271	00000
		1610	14 mm	57095K488	00000
		1610	16 mm	57095K491	00000
		1610	18 mm	57095K492	00000


		1610	19 mm	57095K493	00000
		1610	20 mm	57095K494	00000
		1610	22 mm	57095K495	00000
		1610	24 mm	57095K496	00000
		1610	25 mm	57095K497	00000
		1610	28 mm	57095K498	00000
		1610	30 mm	57095K499	00000
		1610	32 mm	57095K511	00000
		1610	35 mm	57095K512	00000
		1610	38 mm	57095K513	00000


		2012	1/2"	57095K181	00000
		2012	5/8"	57095K294	00000
		2012	3/4"	57095K182	00000
		2012	7/8"	57095K295	00000
		2012	15/16"	57095K545	00000
		2012	1"	57095K183	00000
		2012	1 1/8"	57095K184	00000
		2012	1 3/16"	57095K199	00000
		2012	1 1/4"	57095K185	00000
		2012	1 3/8"	57095K186	00000


		2012	1 7/16"	57095K187	00000
		2012	1 1/2"	57095K188	00000
		2012	1 9/16"	57095K542	00000
		2012	1 5/8"	57095K189	00000
		2012	1 11/16"	57095K538	00000
		2012	1 3/4"	57095K191	00000
		2012	1 7/8"	57095K192	00000
		2012	1 15/16"	57095K313	00000
		2012	2"	57095K193	00000
		2012	2 1/8"	57095K196	000000

2012	20 mm	57095K548	00000
2012	22 mm	57095K549	00000
2012	24 mm	57095K551	00000
2012	25 mm	57095K552	00000
2012	28 mm	57095K553	00000
2012	30 mm	57095K554	00000
2012	32 mm	57095K555	00000
2012	35 mm	57095K556	00000
2012	38 mm	57095K557	00000
2012	40 mm	57095K558	00000
2012	42 mm	57095K559	00000
2012	45 mm	57095K561	00000
2012	50 mm	57095K563	00000

Ultra-High-Torque GT Timing Belt Pulleys

Pair these pulleys with the strongest timing belts we offer, Ultra-High-Torque GT Timing Belts. They can handle as much torque as roller chain. Their curved teeth fit snugly with matching belts for minimal play (backlash), so these pulleys are good for applications that require precise positioning. All are compatible with Gates Poly Chain GT timing belts.

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., mm	Pitch, mm	No. of Teeth	Bore Type	Type	Trade No.	Pitch Dia., mm	No. of Flanges		Each
For 8MGT Trade Size







				Iron

				12	8	45	Bushing	Taper Lock	2012	115	2	7970K13	0000000


				21	8	45	Bushing	Taper Lock	2012	115	2	7970K17	000000
				36	8	45	Bushing	Taper Lock	2012	114.6	2	7970K103	000000

Bushings

Taper-Lock

Bushing

Bushing
Type	Trade No.	For Shaft Dia.		Each
Taper Lock	2012	1/2"	57095K181	000000
Taper Lock	2012	5/8"	57095K294	00000
Taper Lock	2012	3/4"	57095K182	00000
Taper Lock	2012	7/8"	57095K295	00000
Taper Lock	2012	15/16"	57095K545	00000
Taper Lock	2012	1"	57095K183	00000
Taper Lock	2012	1 1/8"	57095K184	00000
Taper Lock	2012	1 3/16"	57095K199	00000
Taper Lock	2012	1 1/4"	57095K185	00000
Taper Lock	2012	1 3/8"	57095K186	00000
Taper Lock	2012	1 7/16"	57095K187	00000
Taper Lock	2012	1 1/2"	57095K188	00000
Taper Lock	2012	1 9/16"	57095K542	00000
Taper Lock	2012	1 5/8"	57095K189	00000
Taper Lock	2012	1 11/16"	57095K538	00000
Taper Lock	2012	1 3/4"	57095K191	00000
Taper Lock	2012	1 7/8"	57095K192	00000
Taper Lock	2012	1 15/16"	57095K313	00000
Taper Lock	2012	2"	57095K193	00000
Taper Lock	2012	2 1/8"	57095K196	000000
Taper Lock	2012	20 mm	57095K548	00000
Taper Lock	2012	22 mm	57095K549	00000
Taper Lock	2012	24 mm	57095K551	00000
Taper Lock	2012	25 mm	57095K552	00000
Taper Lock	2012	28 mm	57095K553	00000
Taper Lock	2012	30 mm	57095K554	00000
Taper Lock	2012	32 mm	57095K555	00000
Taper Lock	2012	35 mm	57095K556	00000
Taper Lock	2012	38 mm	57095K557	00000
Taper Lock	2012	40 mm	57095K558	00000
Taper Lock	2012	42 mm	57095K559	00000
Taper Lock	2012	45 mm	57095K561	00000
Taper Lock	2012	50 mm	57095K563	00000

Metal Bevel Gears

Gears Sold

Separately

Large Gears

Bevel gears provide right-angle speed reduction. They're a type of miter gear installed so that one gear is smaller than the other to achieve speed ratios ranging from 3:2 to 5:1. All are made of carbon steel for good strength.

A complete set consists of a large gear and a small gear, also known as a pinion (sold separately). For the gears to mesh correctly, they must have the same face width, pitch or module, and pressure angle.

Speed Ratio—The ratio by which shaft speed is reduced when transferring motion from the smaller to the larger gear. To increase shaft speed, transfer motion from the larger to the smaller gear. Changing shaft speed also changes torque: as speed decreases, torque increases. To achieve the speed ratio listed, match it across a set of compatible gears.

					Large Gears
Face Wd., mm	Gear Module	Pressure Angle	Speed Ratio	Material	For Shaft Dia., mm		Each
6	1	20°	3:1	1045 Carbon Steel	8	2515N337	000000
10	1.5	20°	3:1	1045 Carbon Steel	10	2515N328	00000
11	1.5	20°	5:2	1045 Carbon Steel	10	2515N329	00000

High-Load Metal Spiral Bevel Gears

Gears Sold Separately

Large Gears

The spiral teeth on these bevel gears stay in contact longer than straight teeth, so they can handle heavier loads at higher speeds. Use them to transmit motion at a right angle while changing shaft speed and torque. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. All are carbon steel for good strength. They have a machinable bore, so you can customize the size within the For Shaft Diameter range listed.

					Large Gears
Face Wd., mm	Gear Module	Pressure Angle	Speed Ratio	Material	For Shaft Dia., mm		Each
15	2	20°	3:1	1045 Carbon Steel	12 to 30	6010N38	0000000

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


20° Pressure Angle Round Bore	Gear with Round 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.

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

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







				Steel

				0.5	45	22.5	23.5	5	20	7	Round Bore with Set Screw	5	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N324	000000


				0.8	45	36	37.6	8	28	8	Round Bore with Set Screw	6	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N342	00000
				1	45	45	47	10	35	10	Round Bore with Set Screw	8	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N14	00000
				1	45	45	47	10	35	10	Round Bore with Set Screw	8	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N366	00000
				2	45	90	94	20	55	10	Round Bore	15	Not Hardened	Black-Oxide 1045 Carbon Steel	2664N403	00000

Gear Racks


20° Pressure Angle—Rectangular	20° Pressure Angle—Round

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.

	Ht., mm	Face Wd., mm	Dia., mm	Tooth Heat Treatment	Material	Features		Each
20° Pressure Angle—Rectangular







	Steel

	0.5	100	11.5	12	5	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N242	000000


	0.5	300	11.5	12	5	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	2485N241	00000
	0.8	100	11.5	12.3	8	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N214	00000
	1	100	11	12	10	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N217	00000
	1	300	11	12	10	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N218	00000
	1	500	8.8	9.8	10	—	Not Hardened	1045 Carbon Steel	—	2485N201	00000
	1	1,000	8.8	9.8	10	—	Not Hardened	1045 Carbon Steel	—	2485N202	000000
	2	100	23	25	20	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N219	00000
	2	300	23	25	20	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N221	00000
	2	500	17.8	19.8	20	—	Not Hardened	1045 Carbon Steel	—	2485N205	000000
	2	1,000	17.8	19.8	20	—	Not Hardened	1045 Carbon Steel	—	2485N206	000000


	2	1,000	18	20	20	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	2485N224	000000


	20° Pressure Angle—Round







					Steel

					1	500	9	—	—	10	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N226	000000


					2	1,000	18	—	—	20	Not Hardened	Black-Oxide 1045 Carbon Steel	—	2485N227	000000

Internal Gears

Image of Product. Front orientation. Internal Spur Gears. Metal Spur Gears.

Save space without losing power. Insert a standard spur gear inside one of these gears for a compact assembly that smoothly transmits motion. 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.

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

	OD, mm	ID, mm	Face Wd., mm	Tooth Heat Treatment	Finished Material		Each
20° Pressure Angle







	Steel

	0.5	60	30	50	29	5	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N16	000000


	0.5	100	50	70	49	5	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N15	00000
	1	60	60	90	58	10	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N27	00000
	1	100	100	130	98	10	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N26	000000
	2	100	200	250	196	20	Not Hardened	Black-Oxide 1045 Carbon Steel	2696N33	000000

Precision High-Torque GT Timing Belt Pulleys

Finished Bore

When precise synchronization is crucial, these pulleys minimize play (backlash). They’re often found in 3D printers, where accurate positioning is essential. Their curved teeth fit snugly with matching belts. Compared to pulleys with standard trapezoidal teeth, these pulleys transmit about three times more torque and run at higher speeds. All are compatible with Gates PowerGrip GT, 2GT, GT2, GT3, and GT4 series.

Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.

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

	Bore Type	For Shaft Dia.	Pitch Dia., mm	No. of Flanges	Hub Type		Each
For 3MGT Trade Size







	Corrosion-Resistant Aluminum

	9	3	45	Finished	1/4"	43	2	Standard	3764N141	000000

Timing Belt Pulleys

Finished 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.

Corrosion-Resistant Aluminum—Won't rust in wet environments and one-third the weight of steel and iron. However, aluminum pulleys are not as strong as iron and steel.

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

	Bore Type	For Shaft Dia.	Pitch Dia.	Hub Type		Each
For XL Trade Size







	Corrosion-Resistant Aluminum

	3/8"	0.200"	45	Finished	3/8"	2.865"	Standard	1277N29	000000

Plastic Spur Gears

Made of plastic, these spur gears run more quietly than metal gears and have good corrosion and chemical resistance. However, they’re not as strong as metal gears, so they’re best for light duty applications. Combine a gear and rack to convert rotary motion into linear motion.

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

20° Pressure

Angle

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

Acetal—Acetal gears absorb less water than nylon gears, so they’re less likely to swell.

						Hub, mm
	Gear Module	No. of Teeth	Gear Pitch Dia., mm	OD, mm	Face Wd., mm	Dia.	Wd.	Bore Type	For Shaft Dia., mm	Color		Each
20° Pressure Angle







				Acetal

				0.5	45	22.5	23.5	3	12	4	Round Bore	5	White	2662N316	00000


				1	45	45	47	6	16	6	Round Bore	8	White	2662N42	00000

Gear Racks

20° 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.

Acetal—Acetal gear racks absorb less water than nylon racks, so they’re less likely to swell.

Machined—Machined gear racks may be slightly bowed but will straighten out when installed.

	Ht., mm	Face Wd., mm	Fabrication	Color		Each
20° Pressure Angle—Rectangular







	Acetal

	0.5	250	5.9	6.3	4	Molded	Gray	2662N55	00000


	1	315	7.9	10	10	Molded	Gray	2662N57	0000
	1	500	11	12	10	Machined	White	2662N63	000000