ANSI 120 Roller Chain | McMaster-Carr

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Less than 1,000 lb.

1,000 lb. to 1,999 lb.

3,000 lb. to 9,999 lb.

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EAR99

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Corrosion-Resistant Coated

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127 Products

Roller Chain and Links

Chain

Connecting Links

Adding 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 Link—Attach with a connecting link to extend the length of your chain. Each link adds a length equal to the chain’s pitch. Also known as roller 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 Links		Adding-and-Connecting Links
	Roller Chain
	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.		Per Ft.		Each		Each		Each
Single Strand







				Steel

				80	ANSI	1"	0.625"	5/8"	4,290	6261K177	000000	6261K196	00000	6261K246	00000	6261K266	000000




						Corrosion-Resistant-Coated Steel

						80	ANSI	1"	0.625"	5/8"	4,100	7210K5	00000	7210K525	0000	7210K732	0000	7210K526	00000




								Corrosion-Resistant 304 Stainless Steel

								80	ANSI	1"	0.625"	5/8"	390	6264K88	00000	6264K55	00000	6264K65	00000	6264K75	00000


								Double Strand







												Steel

												80-2	ANSI	1"	0.625"	5/8"	5,600	6261K715	00000	6261K226	00000	6261K117	00000	6261K845	00000




														Corrosion-Resistant-Coated Steel

														80-2	ANSI	1"	0.625"	5/8"	5,600	2331K4	00000	2331K17	00000	———	0	2331K18	00000


														Triple Strand







																		Steel

																		80-3	ANSI	1"	0.625"	5/8"	8,250	6261K79	00000	6261K717	00000	6261K596	00000	6261K718	00000

Heavy Duty Roller Chain and Links

Chain

Connecting Links

Adding Links

Adding-and-Connecting

Links

Minimize shock loads—the thick side plates on this chain absorb jolts from motor startups, emergency braking, and sudden reversing. Like the chain on a bike, the side plates have a figure-eight shape that grips sprockets to transmit power between rotating shafts 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.

Steel with Through-Hardened Pins—Even stronger than standard steel chain, the pins in this chain are treated to withstand the most extreme shock loads.

Adding Link—Attach with a connecting link to extend the length of your chain. Each link adds a length equal to the chain’s pitch. Also known as roller 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. Remove the side plate to install. Also known as half links and offset links.

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







				Steel

				80H	ANSI	1"	0.625"	5/8"	3,400	7265K6	000000	7265K624	00000	7265K626	00000	7265K625	00000




						Steel with Through-Hardened Pins

						80H	ANSI	1"	0.625"	5/8"	3,300	5522N86	00000	5522N47	0000	5522N48	0000	5522N49	00000


						Double Strand







										Steel

										80H-2	ANSI	1"	0.625"	5/8"	5,800	5871K5	00000	5871K15	0000	———	0	5871K35	00000

Flat-Edge Roller Chain and Links

Chain

Connecting Links

Adding Links

Adding-and-Connecting

Links

No more hang-ups thanks to the flat, oblong side plates that create a level surface to keep items moving along conveyor lines. Unlike standard roller chain, there are no divots to snag products. Pair this chain with sprockets to transmit power between rotating shafts.

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

Double Pitch—This chain has links that are twice as long as those on a single-pitch chain, making it lighter in weight and more energy-efficient over long drives. However, it operates at slower speeds. Use it with standard sprockets that have at least 24 teeth.

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

Adding Link—Attach with a connecting link to extend the length of your chain. Each link adds a length equal to the chain’s pitch. Also known as roller 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. Remove the side plate to install. Also known as half links and offset links.

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







				Steel

				C2040	ANSI	1"	0.312"	5/16"	600	60815K21	00000	60815K212	00000	60815K214	00000	60815K213	00000




						Corrosion-Resistant-Coated Steel

						C2040	ANSI	1"	0.312"	5/16"	600	1060N1	0000	1060N511	0000	1060N513	0000	1060N512	0000




								Corrosion-Resistant 304 Stainless Steel

								C2040	ANSI	1"	0.312"	5/16"	95	2335K1	00000	2335K11	0000	2335K12	0000	2335K13	00000


								Single Pitch







												Steel

												80	ANSI	1"	0.625"	5/8"	4,130	5853N41	00000	5853N35	0000	5853N36	0000	———	0

Attachment Roller Chain Links


Connecting Link A-1 Attachment	Connecting Link K-1 Attachment	Connecting Link SA-1 Attachment	Connecting Link SK-1 Attachment	Connecting Link WA-2 Attachment

Connecting Link WK-2 Attachment	Connecting Link WSA-2 Attachment	Connecting Link WSK-2 Attachment	Connecting Link D-1 Attachment	Connecting Link D-3 Attachment

Adding Link A-1 Attachment	Adding Link K-1 Attachment	Adding Link SA-1 Attachment	Adding Link SK-1 Attachment

Add these links to your roller chain to attach brackets and guides, move items directly, or trip switches in conveying, timing, and aligning setups. Like the chain on a bike, the side plates have a figure-eight shape that grips sprockets to transmit power between rotating shafts without slipping. We offer compatible chain for your convenience. When using your own chain, make sure the trade numbers match. Do not use these links with our Low-Maintenance Roller Chain.

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.

Adding Link—Attach with a connecting link to extend the length of your chain. Each link adds a length equal to the chain’s pitch. Also known as roller links.

Pin—The pins are extended to trip switches.

Tab—The tabs have holes to mount parts and hang hooks.

	Links												Chain
	Attachment		Roller Chain						Connecting Link		Adding Link
	Style	Type	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.		Each		Each		Per Ft.
Steel



		A-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K21	00000	7321K22	00000	6261K177	000000


		K-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K23	00000	7321K24	0000	6261K177	00000
		SA-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K48	0000	7321K49	0000	6261K177	00000
		SK-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K51	00000	7321K52	0000	6261K177	00000
		WA-2	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K284	00000	———	0	6261K177	00000
		WK-2	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K288	00000	———	0	6261K177	00000
		WSA-2	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K293	00000	———	0	6261K177	00000
		WSK-2	Tab	80	ANSI	1"	0.625"	5/8"	4,250	7321K297	00000	———	0	6261K177	00000
		D-1	Pin	80	ANSI	1"	0.625"	5/8"	4,250	7321K69	00000	———	0	6261K177	00000
		D-3	Pin	80	ANSI	1"	0.625"	5/8"	4,250	7321K71	00000	———	0	6261K177	00000


		Corrosion-Resistant-Coated Steel



				A-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	2452K14	0000	———	0	7210K5	00000


				K-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	2452K34	00000	———	0	7210K5	00000
				SA-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	2452K24	0000	———	0	7210K5	00000
				SK-1	Tab	80	ANSI	1"	0.625"	5/8"	4,250	2452K44	00000	———	0	7210K5	00000

Flat-Edge Attachment Roller Chain Links


Connecting Links A-1 Attachment	Connecting Links K-1 Attachment	Connecting Links SA-1 Attachment

Connecting Links SK-1 Attachment	Adding Links K-1 Attachment

Add these links to your flat-edge roller chain to attach brackets and guides or move items directly in conveying, timing, and aligning setups. The flat, oblong side plates create a level surface that keeps items moving along conveyor lines. Unlike standard attachment links, there are no divots to snag or hang up products. We offer compatible flat-edge chain for your convenience. When using your own chain, make sure the trade numbers match.

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.

Adding Link—Attach with a connecting link to extend the length of your chain. Each link adds a length equal to the chain’s pitch. Also known as roller links.

Tab—The tabs have holes to mount parts and hang hooks.

	Links												Chain
	Attachment		Roller Chain						Connecting Links		Adding Links
	Style	Type	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.		Each		Each		Per Ft.
Double Pitch







				Steel

				A-1	Tab	C2040	ANSI	1"	0.312"	5/16"	600	2453K11	00000	———	0	60815K21	00000


				K-1	Tab	C2040	ANSI	1"	0.312"	5/16"	600	2453K31	0000	2453K42	00000	60815K21	0000
				SA-1	Tab	C2040	ANSI	1"	0.312"	5/16"	600	2453K15	0000	———	0	60815K21	0000
				SK-1	Tab	C2040	ANSI	1"	0.312"	5/16"	600	2453K35	0000	———	0	60815K21	0000

Low-Maintenance Roller Chain and Links

Chain

Connecting Links

Adding-and-Connecting

Links

Forget the mess and the stress, this chain has bearings that run reliably with little or no need for lubrication. Like the chain on a bike, the side plates have a figure-eight shape that grips sprockets to transmit power between rotating shafts without slipping.

Oil-Embedded Open Bearings—Made from porous bronze saturated with oil, these bearings don’t require lubrication.

Steel—The go-to for roller chain, steel is strong and economical. It’s best for dry environments since moisture will cause it to rust.

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. 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.	Lubrication		Per Ft.		Each		Each
Oil-Embedded Open Bearings







				Steel

				80	ANSI	1"	0.625"	39/64"	3,300	Lubricated	7311K5	000000	7311K525	000000	7311K526	000000

Hollow-Pin Roller Chain and Links

Chain

Connecting Links

Adding-and-Connecting

Link

Slide rods or other attachments straight through the rollers. With hollow pins, there’s no need to take this chain apart or add attachment links like you would with standard roller chain. Pair the chain with sprockets to transmit power between rotating shafts. It’s commonly used in conveying applications.

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.

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. 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.	Pinhole Dia.		Per Ft.		Each		Each
Single Strand







				Steel

				80	ANSI	1"	0.625"	5/8"	1,700	0.316"	7272K6	000000	7272K625	000000	7272K626	000000

ANSI Roller Chain Spring Clips

Clip Shown

Installed

Replace lost or damaged spring clips to secure the pins on your connecting links. Face the opening away from the direction of travel to maintain a snug fit.

	Lg.	Ht.	Pkg. Qty.		Pkg.
Steel



	80	1 5/8"	5/8"	5	5501N17	00000