ISO 08B Roller Chain | McMaster-Carr

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Roller Chain Trade Number

System of Measurement

Pitch

Strand Type

Material

Chain Standard

Length

Roller Width

Roller Diameter

Component

Number of Teeth

Chain Style

Roller

Link Type

Adding and Connecting

Chain Pitch Type

Specifications Met

Roller Chain Type

Shaft Diameter

Working Load

REACH

Finish

Corrosion-Resistant Coated

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

Yes

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

DFARS Specialty Metals

Exempt

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133 Products

Roller Chain and Links

Chain

Connecting Links

Adding-and-Connecting

Links

Image of Attribute. Front orientation. Contains Annotated.

Pair this chain with sprockets to transmit power between rotating shafts. Like the chain on a bike, the side plates have a figure-eight shape that grips the sprockets without slipping.

Lubrication is key to smooth operation and long chain life. Routinely apply oil by hand or install an oil dispenser for continuous lubrication.

Steel—The go-to for roller chain, steel is strong and economical. While proper lubrication helps prevent rusting, it’s not as corrosion resistant as coated or stainless steel.

Corrosion-Resistant-Coated Steel—Combines the strength of steel with the corrosion resistance of stainless steel. The coating has been tested to withstand 500 hours of salt spray, so it holds up well in wet and outdoor conditions.

Corrosion-Resistant 304 Stainless Steel—Won't corrode from frequent washdowns and mild chemicals, including ammonia often found in cleaning solutions.

Connecting Link—Use a single link to join both ends of your chain. Start by removing the spring clip or cotter pin from the link’s side plate. Then, slide the link pins into the mating rollers at each end of your chain and snap the clip back on. Also known as master links.

Adding-and-Connecting Link—An all-in-one link for adding and connecting. It adds a half-pitch length at the roller end, allowing finer length adjustments than full-pitch links. The pin end connects to your chain—except for trade number 25, which requires a separate connecting link. Remove the side plate to install. Also known as half links and offset links.

							Chain		Connecting Links		Adding-and-Connecting Links
	Roller Chain
	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.		Per Ft.		Each		Each
Single Strand







				Steel

				08B	ISO	1/2"	0.335"	0.305"	700	6027K75	00000	6027K64	00000	6027K66	00000




						Corrosion-Resistant-Coated Steel

						08B	ISO	1/2"	0.335"	0.305"	700	1222N1	00000	1222N911	0000	1222N913	0000




								Corrosion-Resistant 304 Stainless Steel

								08B	ISO	1/2"	0.335"	0.305"	110	60295K83	00000	60295K64	0000	60295K74	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.

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

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







				Steel

				08B	ISO	1/2"	9	43	Plain	10 mm to 15 mm	2302K104	000000


				08B	ISO	1/2"	10	47	Plain	10 mm to 20 mm	2302K105	00000
				08B	ISO	1/2"	11	51	Plain	10 mm to 22 mm	2302K106	00000
				08B	ISO	1/2"	12	56	Plain	10 mm to 22 mm	2302K17	00000
				08B	ISO	1/2"	13	59	Plain	10 mm to 25 mm	2302K107	00000
				08B	ISO	1/2"	14	64	Plain	10 mm to 28 mm	2302K19	00000
				08B	ISO	1/2"	15	68	Plain	10 mm to 30 mm	2302K21	00000
				08B	ISO	1/2"	16	72	Plain	12 mm to 32 mm	2302K22	00000
				08B	ISO	1/2"	17	76	Plain	12 mm to 35 mm	2302K23	00000
				08B	ISO	1/2"	18	80	Plain	12 mm to 38 mm	2302K24	00000
				08B	ISO	1/2"	19	84	Plain	12 mm to 40 mm	2302K25	00000


				08B	ISO	1/2"	20	88	Plain	12 mm to 42 mm	2302K26	00000
				08B	ISO	1/2"	21	92	Plain	12 mm to 45 mm	2302K27	00000
				08B	ISO	1/2"	22	96	Plain	12 mm to 48 mm	2302K28	00000
				08B	ISO	1/2"	23	100	Plain	12 mm to 51 mm	2302K108	00000
				08B	ISO	1/2"	24	104	Plain	14 mm to 53 mm	2302K109	00000
				08B	ISO	1/2"	25	108	Plain	14 mm to 53 mm	2302K32	00000
				08B	ISO	1/2"	26	112	Plain	16 mm to 53 mm	2302K112	00000
				08B	ISO	1/2"	27	116	Plain	16 mm to 53 mm	2302K113	00000
				08B	ISO	1/2"	28	120	Plain	16 mm to 53 mm	2302K114	00000
				08B	ISO	1/2"	29	124	Plain	16 mm to 53 mm	2302K115	00000


				08B	ISO	1/2"	30	128	Plain	16 mm to 53 mm	2302K33	00000
				08B	ISO	1/2"	33	141	Plain	16 mm to 60 mm	2302K223	00000
				08B	ISO	1/2"	36	153	Plain	16 mm to 60 mm	2302K226	00000
				08B	ISO	1/2"	40	169	Plain	19 mm to 60 mm	2302K231	000000




						Corrosion-Resistant 18-8 Stainless Steel

						08B	ISO	1/2"	12	56	Plain	10 mm to 22 mm	6905N32	000000


						08B	ISO	1/2"	15	68	Plain	10 mm to 30 mm	6905N35	000000
						08B	ISO	1/2"	18	81	Plain	12 mm to 38 mm	6905N38	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, mm	Bore Type	For Shaft Dia.		Each
For Single Strand







				Steel

				08B	ISO	1/2"	13	60	Plain	10 mm to 38 mm	6836N151	000000


				08B	ISO	1/2"	14	64	Plain	10 mm to 43 mm	6836N152	00000
				08B	ISO	1/2"	15	68	Plain	10 mm to 47 mm	6836N153	00000
				08B	ISO	1/2"	16	72	Plain	10 mm to 51 mm	6836N154	00000
				08B	ISO	1/2"	17	76	Plain	10 mm to 55 mm	6836N155	00000
				08B	ISO	1/2"	18	80	Plain	10 mm to 59 mm	6836N156	00000
				08B	ISO	1/2"	20	88	Plain	10 mm to 67 mm	6836N158	00000
				08B	ISO	1/2"	21	92	Plain	12 mm to 71 mm	6836N159	00000
				08B	ISO	1/2"	22	96	Plain	12 mm to 75 mm	6836N161	00000
				08B	ISO	1/2"	24	104	Plain	12 mm to 83 mm	6836N163	00000
				08B	ISO	1/2"	25	108	Plain	12 mm to 87 mm	6836N164	00000


				08B	ISO	1/2"	26	112	Plain	16 mm to 92 mm	6836N165	00000
				08B	ISO	1/2"	27	116	Plain	16 mm to 96 mm	6836N166	00000
				08B	ISO	1/2"	32	136	Plain	15 mm to 116 mm	6836N172	00000
				08B	ISO	1/2"	36	153	Plain	15 mm to 132 mm	6836N176	00000
				08B	ISO	1/2"	37	116	Plain	15 mm to 136 mm	6836N177	00000
				08B	ISO	1/2"	39	122	Plain	18 mm to 144 mm	6836N179	00000

High-Accuracy Roller Chain Wear-Indicating Gauges

Image of ProductInUse. Front orientation. Contains Annotated, MultipleImages. Chain Wear Gauges. High-Accuracy Roller Chain Wear-Indicating Gauges.

Precisely measure chain elongation to see if you need to replace your chain. These gauges give a more accurate reading than alternatives because they’re designed to anchor to a roller and extend across several links. A color indicator helps you quickly measure the space between rollers. If the gauge rests on top of the chain and you see green markings, your chain doesn't need to be replaced. If it slips between two rollers and you only see red markings, it’s time for a replacement.

Chain Wear Gauges with Plastic Case

	For Roller Chain Trade No.	Material	Includes		Each
For Single-, Double-, and Triple-Strand ISO Roller Chain



	5	06B, 08B, 10B, 12B, 16B	Steel	Chain Indentification Tool	5576N35	000000000

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	No. of Teeth	For Shaft Dia., mm	OD, mm	Bearing Material		Each
Ball Bearing







				Steel

				08B	ISO	1/2"	16	16	70	Steel	4182N15	000000


				08B	ISO	1/2"	18	16	78	Steel	4182N16	00000

Roller Chain Tensioning Rings

Install these rings between strands of chain to absorb slack without the need for realignment, lubrication, or tools—good for use in confined spaces where maintenance may be difficult.

	Tension Force, lbf	OD	Material	Max. Speed, fpm	Max. Temp., ° F		Each
For Single-Strand ANSI, ISO Roller Chain



	40, 08B	3	4.154"	Plastic	1,470	155	5896K2	0000000


	40, 08B	3	4.783"	Plastic	1,470	155	5896K16	000000
	40, 08B	3	4.783"	Plastic	1,690	155	5896K14	000000
	40, 08B	4	5.413"	Plastic	1,730	155	5896K15	000000

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.

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.

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







				Steel

				08B	ISO	1/2"	32	136	1610	3753N156	0000000


				08B	ISO	1/2"	38	161	1610	3753N159	000000




						Wear-Resistant Steel with Hardened Teeth

						08B	ISO	1/2"	14	64	1008	3753N137	00000


						08B	ISO	1/2"	15	68	1008	3753N138	00000
						08B	ISO	1/2"	17	76	1210	3753N141	00000
						08B	ISO	1/2"	18	80	1210	3753N142	00000
						08B	ISO	1/2"	21	92	1610	3753N145	00000
						08B	ISO	1/2"	24	104	1610	3753N148	000000
						08B	ISO	1/2"	25	108	1610	3753N149	000000

Bushings

Taper-Lock

Bushing

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



		1008	1/2"	57095K111	000000


		1008	5/8"	57095K112	00000
		1008	3/4"	57095K113	00000
		1008	7/8"	57095K114	00000
		1008	15/16"	57095K423	00000
		1008	1"	57095K115	00000
		1008	14 mm	57095K421	00000
		1008	16 mm	57095K422	00000
		1008	18 mm	57095K424	00000
		1008	19 mm	57095K425	00000
		1008	20 mm	57095K426	00000


		1008	22 mm	57095K427	00000
		1210	1/2"	57095K131	00000
		1210	5/8"	57095K132	00000
		1210	3/4"	57095K133	00000
		1210	7/8"	57095K137	00000
		1210	15/16"	57095K447	00000
		1210	1"	57095K134	00000
		1210	1 1/16"	57095K443	00000
		1210	1 1/8"	57095K135	00000
		1210	1 3/16"	57095K138	00000


		1210	1 1/4"	57095K136	00000
		1210	14 mm	57095K446	00000
		1210	16 mm	57095K448	00000
		1210	18 mm	57095K449	00000
		1210	20 mm	57095K452	00000
		1210	22 mm	57095K453	00000
		1210	24 mm	57095K454	00000
		1210	25 mm	57095K455	00000
		1210	28 mm	57095K456	00000
		1210	30 mm	57095K457	00000


		1210	32 mm	57095K458	00000
		1610	1/2"	57095K169	00000
		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