8 mm Gears | McMaster-Carr

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System of Measurement

Shaft Diameter

Number of Teeth

For Maximum Belt Width

Pitch

Bore Type

Tooth Profile

Belt Trade Size

Shaft Type

Manufacturer Equivalent Series

Material

Hub Diameter

Diameter

Pulley Type

Roller Chain Trade Number

Bushing Trade Number

Bearing Type

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

Yes

DFARS Specialty Metals

RoHS

REACH

Export Control Classification Number (ECCN)

EAR99

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285 Products

GT Timing Belt Idler Pulleys

Toothed

Get pitch-perfect compatibility with these free-spinning pulleys. They mesh with belts that have curved GT-profile teeth, reducing vibration and wear. As they rotate on their bearings, these pulleys press up against belts to reduce slack and keep the system moving smoothly. All are compatible with GatesPowerGrip GT, 2GT, GT2, GT3, and GT4 series. Idler pulleys are often used with belt tensioners.

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

						Toothed
	For Max. Belt Wd., mm	Pitch, mm	For Shaft Dia., mm	OD, mm	Bearing Type	No. of Teeth		Each
For 8MGT Trade Size







				Iron

				20	8	20	90	Roller	32	7769N21	0000000


				30	8	30	100	Roller	36	7769N22	000000
				62	8	30	100	Roller	36	7769N28	000000

Quiet-Drive Tire-Track Timing Belt Pulleys

Plain Bore

Bushing Bore

Crank up the power and turn down the noise. With curved teeth arranged in a tire-track pattern, these pulleys fit snugly into matching belts. The flush fit reduces play (backlash) for more precise movement and up to 25% less operating noise. Compared to pulleys with trapezoidal teeth, they deliver higher torque with less vibration and smoother performance.

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

Plain Bore—Do it your way—machine the bore to your exact shaft size or add a set screw or keyway.

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	For Shaft Dia.	Type	Trade No.	Pitch Dia., mm	Hub Type		Each
For NRG Trade Size







				Iron

				16	8	18	Plain	1/2"	—	—	46	Standard	7955K11	0000000


				16	8	28	Bushing	—	Split Tapered	H	71	—	7955K12	000000
				16	8	36	Bushing	—	Quick Disconnect (QD)	SH	92	—	7955K13	000000
				32	8	25	Plain	1/2"	—	—	64	Standard	7955K16	000000
				32	8	40	Bushing	—	Quick Disconnect (QD)	SH	102	—	7955K17	000000
				32	8	48	Bushing	—	Quick Disconnect (QD)	SDS	122	—	7955K19	000000

Bushings

Quick-Disconnect

Bushing

Split-Tapered

Bushing

Bushing
Type	Trade No.	For Shaft Dia.		Each
Quick Disconnect (QD)	SH	1/2"	6086K211	000000
Quick Disconnect (QD)	SH	5/8"	6086K212	00000
Quick Disconnect (QD)	SH	11/16"	6086K226	00000
Quick Disconnect (QD)	SH	3/4"	6086K213	00000
Quick Disconnect (QD)	SH	7/8"	6086K214	00000
Quick Disconnect (QD)	SH	15/16"	6086K215	00000
Quick Disconnect (QD)	SH	1"	6086K216	00000
Quick Disconnect (QD)	SH	1 1/16"	6086K217	00000
Quick Disconnect (QD)	SH	1 1/8"	6086K218	00000
Quick Disconnect (QD)	SH	1 3/16"	6086K219	00000
Quick Disconnect (QD)	SH	1 1/4"	6086K221	00000
Quick Disconnect (QD)	SH	1 5/16"	6086K848	00000
Quick Disconnect (QD)	SH	1 3/8"	6086K222	00000
Quick Disconnect (QD)	SH	1 7/16"	6086K849	00000
Quick Disconnect (QD)	SH	1 1/2"	6086K223	00000
Quick Disconnect (QD)	SH	1 5/8"	6086K224	00000
Quick Disconnect (QD)	SH	1 11/16"	6086K225	00000
Quick Disconnect (QD)	SH	22 mm	2344K71	00000
Quick Disconnect (QD)	SH	24 mm	2344K11	00000
Quick Disconnect (QD)	SH	25 mm	2344K12	00000
Quick Disconnect (QD)	SH	28 mm	2344K13	00000
Quick Disconnect (QD)	SH	30 mm	2344K14	00000
Quick Disconnect (QD)	SH	32 mm	2344K15	00000
Quick Disconnect (QD)	SH	35 mm	2344K16	00000
Quick Disconnect (QD)	SDS	1/2"	6086K311	00000
Quick Disconnect (QD)	SDS	9/16"	6086K131	00000
Quick Disconnect (QD)	SDS	5/8"	6086K312	00000
Quick Disconnect (QD)	SDS	3/4"	6086K313	00000
Quick Disconnect (QD)	SDS	7/8"	6086K314	00000
Quick Disconnect (QD)	SDS	15/16"	6086K315	00000
Quick Disconnect (QD)	SDS	1"	6086K316	00000
Quick Disconnect (QD)	SDS	1 1/16"	6086K317	00000
Quick Disconnect (QD)	SDS	1 1/8"	6086K318	00000
Quick Disconnect (QD)	SDS	1 3/16"	6086K319	00000
Quick Disconnect (QD)	SDS	1 1/4"	6086K321	00000
Quick Disconnect (QD)	SDS	1 5/16"	6086K851	00000
Quick Disconnect (QD)	SDS	1 3/8"	6086K322	00000
Quick Disconnect (QD)	SDS	1 7/16"	6086K323	00000
Quick Disconnect (QD)	SDS	1 1/2"	6086K324	00000
Quick Disconnect (QD)	SDS	1 9/16"	6086K132	00000
Quick Disconnect (QD)	SDS	1 5/8"	6086K325	00000
Quick Disconnect (QD)	SDS	1 11/16"	6086K852	00000
Quick Disconnect (QD)	SDS	1 3/4"	6086K326	00000
Quick Disconnect (QD)	SDS	1 7/8"	6086K853	00000
Quick Disconnect (QD)	SDS	1 15/16"	6086K854	00000
Quick Disconnect (QD)	SDS	2"	6086K327	00000
Quick Disconnect (QD)	SDS	24 mm	2344K21	00000
Quick Disconnect (QD)	SDS	25 mm	2344K22	00000
Quick Disconnect (QD)	SDS	28 mm	2344K23	00000
Quick Disconnect (QD)	SDS	30 mm	2344K24	00000
Quick Disconnect (QD)	SDS	32 mm	2344K25	00000
Quick Disconnect (QD)	SDS	35 mm	2344K26	00000
Quick Disconnect (QD)	SDS	38 mm	2344K27	00000
Quick Disconnect (QD)	SDS	40 mm	2344K28	00000
Quick Disconnect (QD)	SDS	42 mm	2344K29	00000
Split Tapered	H	3/8"	6086K191	00000
Split Tapered	H	1/2"	6086K192	00000
Split Tapered	H	5/8"	6086K197	00000
Split Tapered	H	3/4"	6086K193	00000
Split Tapered	H	7/8"	6086K198	00000
Split Tapered	H	1"	6086K194	00000
Split Tapered	H	1 1/8"	6086K199	00000
Split Tapered	H	1 3/16"	6086K227	00000
Split Tapered	H	1 1/4"	6086K195	00000
Split Tapered	H	1 3/8"	6086K229	00000
Split Tapered	H	1 7/16"	6086K228	00000
Split Tapered	H	1 1/2"	6086K196	00000
Split Tapered	H	10 mm	9859T711	00000
Split Tapered	H	12 mm	9859T713	00000
Split Tapered	H	14 mm	9859T714	00000
Split Tapered	H	16 mm	9859T715	00000
Split Tapered	H	18 mm	9859T716	00000
Split Tapered	H	19 mm	9859T717	00000
Split Tapered	H	20 mm	9859T718	00000
Split Tapered	H	22 mm	9859T719	00000
Split Tapered	H	24 mm	9859T721	00000
Split Tapered	H	25 mm	9859T722	00000
Split Tapered	H	28 mm	9859T723	00000
Split Tapered	H	30 mm	9859T724	00000
Split Tapered	H	32 mm	9859T725	00000
Split Tapered	H	35 mm	9859T726	00000
Split Tapered	H	38 mm	9859T728	00000

Sprockets

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.

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







				Steel

				05B	ISO	8	8	24	Plain	6 mm to 8 mm	2302K79	000000


				05B	ISO	8	9	27	Plain	6 mm to 8 mm	2302K81	00000
				05B	ISO	8	10	29	Plain	8 mm to 11 mm	2302K82	00000
				05B	ISO	8	11	32	Plain	8 mm to 11 mm	2302K83	00000
				05B	ISO	8	12	34	Plain	8 mm to 12 mm	2302K54	00000
				05B	ISO	8	13	37	Plain	8 mm to 20 mm	2302K84	00000
				05B	ISO	8	14	40	Plain	8 mm to 15 mm	2302K55	00000
				05B	ISO	8	15	42	Plain	8 mm to 18 mm	2302K56	00000
				05B	ISO	8	16	45	Plain	8 mm to 19 mm	2302K57	00000
				05B	ISO	8	17	48	Plain	8 mm to 20 mm	2302K58	00000
				05B	ISO	8	18	50	Plain	8 mm to 22 mm	2302K59	00000


				05B	ISO	8	19	53	Plain	8 mm to 24 mm	2302K61	00000
				05B	ISO	8	20	55	Plain	8 mm to 25 mm	2302K62	00000
				05B	ISO	8	21	58	Plain	8 mm to 25 mm	2302K63	00000
				05B	ISO	8	22	60	Plain	8 mm to 25 mm	2302K64	00000
				05B	ISO	8	23	62	Plain	8 mm to 17 mm	2302K117	00000
				05B	ISO	8	24	65	Plain	8 mm to 17 mm	2302K118	00000
				05B	ISO	8	25	68	Plain	8 mm to 25 mm	2302K65	00000
				05B	ISO	8	26	70	Plain	10 mm to 22 mm	2302K85	00000
				05B	ISO	8	28	75	Plain	10 mm to 22 mm	2302K87	00000
				05B	ISO	8	30	81	Plain	10 mm to 30 mm	2302K66	00000

HTD Timing Belt Idler Pulleys

Keep HTD timing belt systems running tightly with these idler pulleys. Curved teeth press against the belt as bearings rotate freely, reducing vibration and wear. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series. Idler pulleys are often used with belt tensioners.

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

	For Shaft Dia.	OD	Bearing Type		Each
For H8M Trade Size







	Iron

	30	19	8	1"	1 7/8"	Roller	7760N11	000000

High-Torque HTD Timing Belt Pulleys

Plain Bore

Bushing Bore

Curved teeth engage with the matching belt better than standard trapezoidal teeth, so these pulleys transmit about twice the torque. All are compatible with Gates PowerGrip HTD, Omega HP, and Carlisle RPP series.

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

Corrosion-Resistant Stainless Steel—Stands up to wet environments and mild chemicals, such as the ammonia in cleaning solutions.

Plain Bore—Do it your way—machine the bore to your exact shaft size or add a set screw or keyway.

						For Bushing
	For Max. Belt Wd., mm	Pitch, mm	No. of Teeth	Bore Type	For Shaft Dia.	Type	Trade No.	Pitch Dia., mm	No. of Flanges	Hub Type		Each
For H8M Trade Size







				Steel

				12	8	26	Bushing	—	Quick Disconnect (QD)	JA	66.2	2	—	6497K277	0000000


				12	8	28	Bushing	—	Split Tapered	H	71.3	2	—	6497K279	000000
				12	8	30	Bushing	—	Split Tapered	H	76.4	2	—	6497K282	000000
				12	8	32	Bushing	—	Split Tapered	H	81.5	2	—	6497K284	000000
				22	8	26	Bushing	—	Quick Disconnect (QD)	JA	66.2	2	—	6497K278	000000
				22	8	28	Bushing	—	Split Tapered	H	71.3	2	—	6497K281	000000
				22	8	30	Bushing	—	Split Tapered	H	76.4	2	—	6497K283	000000
				22	8	32	Bushing	—	Split Tapered	H	81.5	2	—	6497K285	000000




						Iron

						20	8	22	Plain	1/2"	—	—	56	2	Standard	6497K111	00000


						20	8	26	Bushing	—	Quick Disconnect (QD)	JA	66.2	2	—	6497K113	00000
						20	8	28	Bushing	—	Split Tapered	H	71.3	2	—	6497K711	00000
						20	8	30	Bushing	—	Split Tapered	H	76.4	2	—	6497K712	00000
						20	8	34	Bushing	—	Quick Disconnect (QD)	SH	86.6	2	—	6497K117	00000
						20	8	40	Bushing	—	Quick Disconnect (QD)	SH	101.9	2	—	6497K12	00000
						20	8	44	Bushing	—	Quick Disconnect (QD)	SDS	112	2	—	6497K121	00000
						20	8	48	Bushing	—	Quick Disconnect (QD)	SDS	122.2	2	—	6497K122	000000
						20	8	56	Bushing	—	Quick Disconnect (QD)	SDS	142.6	2	—	6497K123	000000
						30	8	22	Plain	1/2"	—	—	56	2	Standard	6497K211	00000
						30	8	24	Plain	1/2"	—	—	61.1	2	Standard	6497K212	00000


						30	8	26	Plain	1/2"	—	—	66.2	2	Standard	6497K213	00000
						30	8	28	Bushing	—	Split Tapered	H	71.3	2	—	6497K714	00000
						30	8	30	Bushing	—	Split Tapered	H	76.4	2	—	6497K715	00000
						30	8	32	Bushing	—	Split Tapered	H	81.5	2	—	6497K716	00000
						30	8	34	Bushing	—	Quick Disconnect (QD)	SH	86.6	2	—	6497K217	00000
						30	8	40	Bushing	—	Quick Disconnect (QD)	SH	101.9	2	—	6497K22	00000
						30	8	44	Bushing	—	Quick Disconnect (QD)	SDS	112	2	—	6497K221	00000
						30	8	48	Bushing	—	Quick Disconnect (QD)	SDS	122.2	2	—	6497K222	000000
						30	8	56	Bushing	—	Quick Disconnect (QD)	SDS	142.6	2	—	6497K223	000000
						50	8	34	Bushing	—	Quick Disconnect (QD)	SH	86.6	2	—	6497K33	000000


						50	8	36	Bushing	—	Quick Disconnect (QD)	SH	91.7	2	—	6497K34	000000
						50	8	40	Bushing	—	Quick Disconnect (QD)	SH	101.9	2	—	6497K35	000000




								Corrosion-Resistant Stainless Steel

								20	8	22	Plain	1/2"	—	—	54.7	2	Standard	1230N15	000000


								20	8	26	Bushing	—	Quick Disconnect (QD)	JA	62.2	2	—	1230N16	000000
20								8	28	Bushing	—	Split Tapered	H	71.3	2	—	1230N17	000000
20	8							30	Bushing	—	Split Tapered	H	76.4	2	—	1230N18	000000
20	8							34	Bushing	—	Quick Disconnect (QD)	SH	86.6	2	—	1230N19	000000
20	8							40	Bushing	—	Quick Disconnect (QD)	SH	101.9	2	—	1230N2	000000
20	8							44	Bushing	—	Quick Disconnect (QD)	SDS	112	2	—	1230N21	000000
20	8	48						Bushing	—	Quick Disconnect (QD)	SDS	122.2	2	—	1230N22	000000
20	8	56	Bushing					—	Quick Disconnect (QD)	SDS	141.2	2	—	1230N23	000000
30	8	22	Plain					1/2"	—	—	54.7	2	Standard	1230N24	000000
30	8	24	Plain					1/2"	—	—	59.7	2	Standard	1230N25	000000


30	8	26	Plain					1/2"	—	—	64.8	2	Standard	1230N26	000000
30	8	28	Bushing					—	Split Tapered	H	71.3	2	—	1230N27	000000
30	8	30	Bushing					—	Split Tapered	H	76.4	2	—	1230N28	000000
30	8	32	Bushing					—	Split Tapered	H	81.5	2	—	1230N29	000000
30	8	34	Bushing					—	Quick Disconnect (QD)	SH	86.6	2	—	1230N3	000000
30	8	40	Bushing					—	Quick Disconnect (QD)	SH	101.9	2	—	1230N31	000000
30	8	44	Bushing					—	Quick Disconnect (QD)	SDS	112	2	—	1230N32	000000
30	8	48	Bushing					—	Quick Disconnect (QD)	SDS	122.2	2	—	1230N33	000000
30	8	56	Bushing					—	Quick Disconnect (QD)	SDS	142.6	2	—	1230N34	000000
50	8	34	Bushing					—	Quick Disconnect (QD)	SH	86.6	2	—	1230N35	000000


50	8	36	Bushing	—	Quick Disconnect (QD)			SH	91.7	2	—	1230N36	000000
50	8	40	Bushing	—	Quick Disconnect (QD)			SH	101.9	2	—	1230N37	000000

Bushings

Quick-Disconnect

Bushing

Split-Tapered

Bushing

Bushing
Type	Trade No.	For Shaft Dia.		Each
Quick Disconnect (QD)	JA	1/2"	6086K111	000000
Quick Disconnect (QD)	JA	9/16"	6086K118	00000
Quick Disconnect (QD)	JA	5/8"	6086K112	00000
Quick Disconnect (QD)	JA	3/4"	6086K113	00000
Quick Disconnect (QD)	JA	13/16"	6086K119	00000
Quick Disconnect (QD)	JA	7/8"	6086K114	00000
Quick Disconnect (QD)	JA	15/16"	6086K115	00000
Quick Disconnect (QD)	JA	1"	6086K116	00000
Quick Disconnect (QD)	JA	1 1/16"	6086K845	00000
Quick Disconnect (QD)	JA	1 1/8"	6086K846	00000
Quick Disconnect (QD)	JA	1 3/16"	6086K847	00000
Quick Disconnect (QD)	JA	1 1/4"	6086K117	00000
Quick Disconnect (QD)	SH	1/2"	6086K211	00000
Quick Disconnect (QD)	SH	5/8"	6086K212	00000
Quick Disconnect (QD)	SH	11/16"	6086K226	00000
Quick Disconnect (QD)	SH	3/4"	6086K213	00000
Quick Disconnect (QD)	SH	7/8"	6086K214	00000
Quick Disconnect (QD)	SH	15/16"	6086K215	00000
Quick Disconnect (QD)	SH	1"	6086K216	00000
Quick Disconnect (QD)	SH	1 1/16"	6086K217	00000
Quick Disconnect (QD)	SH	1 1/8"	6086K218	00000
Quick Disconnect (QD)	SH	1 3/16"	6086K219	00000
Quick Disconnect (QD)	SH	1 1/4"	6086K221	00000
Quick Disconnect (QD)	SH	1 5/16"	6086K848	00000
Quick Disconnect (QD)	SH	1 3/8"	6086K222	00000
Quick Disconnect (QD)	SH	1 7/16"	6086K849	00000
Quick Disconnect (QD)	SH	1 1/2"	6086K223	00000
Quick Disconnect (QD)	SH	1 5/8"	6086K224	00000
Quick Disconnect (QD)	SH	1 11/16"	6086K225	00000
Quick Disconnect (QD)	SH	22 mm	2344K71	00000
Quick Disconnect (QD)	SH	24 mm	2344K11	00000
Quick Disconnect (QD)	SH	25 mm	2344K12	00000
Quick Disconnect (QD)	SH	28 mm	2344K13	00000
Quick Disconnect (QD)	SH	30 mm	2344K14	00000
Quick Disconnect (QD)	SH	32 mm	2344K15	00000
Quick Disconnect (QD)	SH	35 mm	2344K16	00000
Quick Disconnect (QD)	SDS	1/2"	6086K311	00000
Quick Disconnect (QD)	SDS	9/16"	6086K131	00000
Quick Disconnect (QD)	SDS	5/8"	6086K312	00000
Quick Disconnect (QD)	SDS	3/4"	6086K313	00000
Quick Disconnect (QD)	SDS	7/8"	6086K314	00000
Quick Disconnect (QD)	SDS	15/16"	6086K315	00000
Quick Disconnect (QD)	SDS	1"	6086K316	00000
Quick Disconnect (QD)	SDS	1 1/16"	6086K317	00000
Quick Disconnect (QD)	SDS	1 1/8"	6086K318	00000
Quick Disconnect (QD)	SDS	1 3/16"	6086K319	00000
Quick Disconnect (QD)	SDS	1 1/4"	6086K321	00000
Quick Disconnect (QD)	SDS	1 5/16"	6086K851	00000
Quick Disconnect (QD)	SDS	1 3/8"	6086K322	00000
Quick Disconnect (QD)	SDS	1 7/16"	6086K323	00000
Quick Disconnect (QD)	SDS	1 1/2"	6086K324	00000
Quick Disconnect (QD)	SDS	1 9/16"	6086K132	00000
Quick Disconnect (QD)	SDS	1 5/8"	6086K325	00000
Quick Disconnect (QD)	SDS	1 11/16"	6086K852	00000
Quick Disconnect (QD)	SDS	1 3/4"	6086K326	00000
Quick Disconnect (QD)	SDS	1 7/8"	6086K853	00000
Quick Disconnect (QD)	SDS	1 15/16"	6086K854	00000
Quick Disconnect (QD)	SDS	2"	6086K327	00000
Quick Disconnect (QD)	SDS	24 mm	2344K21	00000
Quick Disconnect (QD)	SDS	25 mm	2344K22	00000
Quick Disconnect (QD)	SDS	28 mm	2344K23	00000
Quick Disconnect (QD)	SDS	30 mm	2344K24	00000
Quick Disconnect (QD)	SDS	32 mm	2344K25	00000
Quick Disconnect (QD)	SDS	35 mm	2344K26	00000
Quick Disconnect (QD)	SDS	38 mm	2344K27	00000
Quick Disconnect (QD)	SDS	40 mm	2344K28	00000
Quick Disconnect (QD)	SDS	42 mm	2344K29	00000
Split Tapered	H	3/8"	6086K191	00000
Split Tapered	H	1/2"	6086K192	00000
Split Tapered	H	5/8"	6086K197	00000
Split Tapered	H	3/4"	6086K193	00000
Split Tapered	H	7/8"	6086K198	00000
Split Tapered	H	1"	6086K194	00000
Split Tapered	H	1 1/8"	6086K199	00000
Split Tapered	H	1 3/16"	6086K227	00000
Split Tapered	H	1 1/4"	6086K195	00000
Split Tapered	H	1 3/8"	6086K229	00000
Split Tapered	H	1 7/16"	6086K228	00000
Split Tapered	H	1 1/2"	6086K196	00000
Split Tapered	H	10 mm	9859T711	00000
Split Tapered	H	12 mm	9859T713	00000
Split Tapered	H	14 mm	9859T714	00000
Split Tapered	H	16 mm	9859T715	00000
Split Tapered	H	18 mm	9859T716	00000
Split Tapered	H	19 mm	9859T717	00000
Split Tapered	H	20 mm	9859T718	00000
Split Tapered	H	22 mm	9859T719	00000
Split Tapered	H	24 mm	9859T721	00000
Split Tapered	H	25 mm	9859T722	00000
Split Tapered	H	28 mm	9859T723	00000
Split Tapered	H	30 mm	9859T724	00000
Split Tapered	H	32 mm	9859T725	00000
Split Tapered	H	35 mm	9859T726	00000
Split Tapered	H	38 mm	9859T728	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	4182N11	000000

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.

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

					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







				Steel

				12	8	22	Bushing	Taper Lock	1008	56	2	7970K11	0000000


				21	8	22	Bushing	Taper Lock	1008	56	2	7970K15	000000




						Iron

						12	8	36	Bushing	Taper Lock	1610	92	2	7970K12	000000


						12	8	45	Bushing	Taper Lock	2012	115	2	7970K13	000000
						21	8	36	Bushing	Taper Lock	1610	92	2	7970K16	000000
						21	8	45	Bushing	Taper Lock	2012	115	2	7970K17	000000
						36	8	32	Bushing	Taper Lock	1210	81.5	2	7970K101	000000
						36	8	36	Bushing	Taper Lock	1610	91.7	2	7970K102	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	1008	1/2"	57095K111	000000
Taper Lock	1008	5/8"	57095K112	00000
Taper Lock	1008	3/4"	57095K113	00000
Taper Lock	1008	7/8"	57095K114	00000
Taper Lock	1008	15/16"	57095K423	00000
Taper Lock	1008	1"	57095K115	00000
Taper Lock	1008	14 mm	57095K421	00000
Taper Lock	1008	16 mm	57095K422	00000
Taper Lock	1008	18 mm	57095K424	00000
Taper Lock	1008	19 mm	57095K425	00000
Taper Lock	1008	20 mm	57095K426	00000
Taper Lock	1008	22 mm	57095K427	00000
Taper Lock	1210	1/2"	57095K131	00000
Taper Lock	1210	5/8"	57095K132	00000
Taper Lock	1210	3/4"	57095K133	00000
Taper Lock	1210	7/8"	57095K137	00000
Taper Lock	1210	15/16"	57095K447	00000
Taper Lock	1210	1"	57095K134	00000
Taper Lock	1210	1 1/16"	57095K443	00000
Taper Lock	1210	1 1/8"	57095K135	00000
Taper Lock	1210	1 3/16"	57095K138	00000
Taper Lock	1210	1 1/4"	57095K136	00000
Taper Lock	1210	14 mm	57095K446	00000
Taper Lock	1210	16 mm	57095K448	00000
Taper Lock	1210	18 mm	57095K449	00000
Taper Lock	1210	20 mm	57095K452	00000
Taper Lock	1210	22 mm	57095K453	00000
Taper Lock	1210	24 mm	57095K454	00000
Taper Lock	1210	25 mm	57095K455	00000
Taper Lock	1210	28 mm	57095K456	00000
Taper Lock	1210	30 mm	57095K457	00000
Taper Lock	1210	32 mm	57095K458	00000
Taper Lock	1610	1/2"	57095K169	00000
Taper Lock	1610	5/8"	57095K161	00000
Taper Lock	1610	3/4"	57095K162	00000
Taper Lock	1610	13/16"	57095K487	00000
Taper Lock	1610	7/8"	57095K159	00000
Taper Lock	1610	15/16"	57095K489	00000
Taper Lock	1610	1"	57095K163	00000
Taper Lock	1610	1 1/16"	57095K484	00000
Taper Lock	1610	1 1/8"	57095K164	00000
Taper Lock	1610	1 3/16"	57095K311	00000
Taper Lock	1610	1 1/4"	57095K165	00000
Taper Lock	1610	1 5/16"	57095K485	00000
Taper Lock	1610	1 3/8"	57095K166	00000
Taper Lock	1610	1 7/16"	57095K312	00000
Taper Lock	1610	1 1/2"	57095K167	00000
Taper Lock	1610	1 9/16"	57095K486	00000
Taper Lock	1610	1 5/8"	57095K168	00000
Taper Lock	1610	1 11/16"	57095K271	00000
Taper Lock	1610	14 mm	57095K488	00000
Taper Lock	1610	16 mm	57095K491	00000
Taper Lock	1610	18 mm	57095K492	00000
Taper Lock	1610	19 mm	57095K493	00000
Taper Lock	1610	20 mm	57095K494	00000
Taper Lock	1610	22 mm	57095K495	00000
Taper Lock	1610	24 mm	57095K496	00000
Taper Lock	1610	25 mm	57095K497	00000
Taper Lock	1610	28 mm	57095K498	00000
Taper Lock	1610	30 mm	57095K499	00000
Taper Lock	1610	32 mm	57095K511	00000
Taper Lock	1610	35 mm	57095K512	00000
Taper Lock	1610	38 mm	57095K513	00000
Taper Lock	2012	1/2"	57095K181	00000
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