ANSI 50-2 Roller Chain | McMaster-Carr

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Less than 1,000 lb.

1,000 lb. to 1,999 lb.

2,000 lb. to 2,999 lb.

3,000 lb. to 9,999 lb.

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Corrosion-Resistant Coated

Nickel Plated

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EAR99

DFARS Specialty Metals

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Tab Length

Mounting Hole Diameter

0.205"

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128 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.

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion resistant roller chain won’t degrade when exposed to salt water and harsh chemicals.

Connecting Link—Use a single link to join both ends of your chain. Start by removing the spring clip 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.

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







				Steel

				50	ANSI	5/8"	0.400"	3/8"	1,620	00000000	00000	00000000	00000	00000000	00000	00000000	00000




						Corrosion-Resistant-Coated Steel

						50	ANSI	5/8"	0.400"	3/8"	1,600	000000	00000	00000000	0000	00000000	0000	00000000	0000




								Corrosion-Resistant 304 Stainless Steel

								50	ANSI	5/8"	0.400"	3/8"	150	0000000	00000	0000000	0000	0000000	0000	0000000	00000




										Highly Corrosion-Resistant 316 Stainless Steel

										50	ANSI	5/8"	0.400"	3/8"	150	000000	000000	0000000	00000	———	0	0000000	00000


										Double Strand







														Steel

														50-2	ANSI	5/8"	0.400"	3/8"	2,350	00000000	00000	00000000	0000	00000000	0000	00000000	00000




																Corrosion-Resistant-Coated Steel

																50-2	ANSI	5/8"	0.400"	3/8"	2,350	000000	00000	0000000	0000	———	0	0000000	00000




																		Corrosion-Resistant 304 Stainless Steel

																		50-2	ANSI	5/8"	0.400"	3/8"	300	000000	00000	0000000	00000	———	0	0000000	00000


																		Triple Strand







																				Steel

		50-3	ANSI																	5/8"	0.400"	3/8"	3,500	0000000	00000	00000000	0000	00000000	0000	00000000	0000

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.

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







				Steel

				50H	ANSI	5/8"	0.400"	3/8"	1,620	000000	000000	00000000	00000	00000000	00000	00000000	00000




						Steel with Through-Hardened Pins

						50H	ANSI	5/8"	0.400"	3/8"	1,870	0000000	00000	0000000	0000	———	0	0000000	00000


						Double Strand







										Steel

										50H-2	ANSI	5/8"	0.400"	3/8"	2,400	000000	00000	0000000	0000	———	0	0000000	00000

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	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	00000	0000000	00000	00000000	00000


		K-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	0000000	0000	00000000	0000
		SA-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	0000000	0000	00000000	0000
		SK-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	0000000	0000	00000000	0000
		WA-2	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	00000000	00000	———	0	00000000	0000
		WK-2	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	00000000	00000	———	0	00000000	0000
		WSA-2	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	00000000	00000	———	0	00000000	0000
		WSK-2	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	00000000	00000	———	0	00000000	0000
		D-1	Pin	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	00000000	0000
		D-3	Pin	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	00000000	0000


		Corrosion-Resistant-Coated Steel



				A-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	000000	00000


				K-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	000000	00000
				SA-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	000000	00000
				SK-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	000000	00000
				D-1	Pin	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	0000	———	0	000000	00000
				D-3	Pin	50	ANSI	5/8"	0.400"	3/8"	1,600	0000000	00000	———	0	000000	00000

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.

Sealed Bearings—These bearings come with seals to retain the grease you add and reduce the need for additional lubrication. They also keep grease off your equipment and prevent dirt from sticking to the chain.

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.

Corrosion-Resistant Nickel-Plated Steel—A step up from plain steel, the nickel plating adds a layer of rust protection in wet environments. However, if scratched, the underlying steel may still rust. The plating may also hinder welding.

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.

	Roller Chain							Chain		Connecting Links		Adding-and-Connecting Links
	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.	Lubrication		Per Ft.		Each		Each
Oil-Embedded Open Bearings







				Steel

				50	ANSI	5/8"	0.400"	23/64"	1,400	Lubricated	000000	000000	00000000	00000	00000000	000000




						Corrosion-Resistant Nickel-Plated Steel

						50	ANSI	5/8"	0.400"	23/64"	1,200	Lubricated	000000	00000	0000000	0000	0000000	00000


						Sealed Bearings







										Steel

										50	ANSI	5/8"	0.400"	3/8"	1,500	Required	00000000	00000	000000000	0000	000000000	00000

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



	35	5/8"	1/4"	5	0000000	00000


	50	1"	3/8"	5	0000000	0000

Attachment Roller Chain


K-1 Attachment

Skip the hassle of adding attachment links, this chain arrives with them already installed. No disassembly required, just pick your length and get moving. Use this chain to mount brackets and guides, move items directly, or trip switches with tabs or pins 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.

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.

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

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.

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



		K-1	Tab	50	ANSI	5/8"	0.400"	3/8"	1,400	0000000	000000	0000000	00000	00000000	00000

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.

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

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.

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







				Steel

				50	ANSI	5/8"	0.400"	3/8"	700	0.202"	000000	000000	00000000	00000	00000000	000000




						Corrosion-Resistant 304 Stainless Steel

						50	ANSI	5/8"	0.400"	3/8"	150	0.202"	000000	000000	0000000	00000	0000000	00000

Dry-Running Roller Chain and Links

Chain

Connecting Link

Say goodbye to messy grease and time-consuming maintenance. This chain has plastic bearings that run smoothly without lubrication. Paired with stainless steel pins and side plates, it’s lightweight, quiet-running, and resistant to mild chemicals. The chain withstands starts and stops better than all-plastic chain, but it handles only a fraction of the load of all-metal chain. 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.

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







				Plastic with 304 Stainless Steel Pins and Side Plates

				50	ANSI	5/8"	0.400"	3/8"	150	Not Required	0000000	000000	0000000	00000

Flat-Edge Roller Chain and Links

Chain

Connecting Links

Adding 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.

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.

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







				Steel

				50	ANSI	5/8"	0.400"	3/8"	1,620	0000000	000000	0000000	00000	0000000	00000

Flexible Roller Chain and Links

Chain

Connecting Links

Thanks to extra space between components, this chain flexes side to side to take on misaligned sprockets or curved conveyor paths. 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. Also known as bow 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.

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







				Steel

				50	ANSI	5/8"	0.400"	3/8"	700	15.748"	000000	000000	00000000	00000