ANSI 40-2 Roller Chain | McMaster-Carr

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Roller Chain Trade Number

Component

Chain Standard

Material

System of Measurement

Length

Strand Type

Pitch

Roller Chain Type

Chain Style

Attachment Type

Roller Width

Roller Diameter

Roller Chain Attachment Style

Chain Pitch Type

Working Load

Pinhole Diameter

Pin Diameter

Finish

Corrosion-Resistant Coated

Performance

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Tab Length

REACH

RoHS

Mounting Hole Diameter

0.142"

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19 Products

Roller Chain Type

Standard

Figure-eight shaped side plates grip sprockets without slipping

16 products

Flat Edge

Flat side plates won’t snag items to keep them moving along conveyor lines

1 product

Roller Chain Type

Hollow Pin

Slide rods or attachments through the rollers—no need to break the chain

2 products

Attachment

Attach brackets and guides, or move material directly

7 products

Roller Chain and Links

Chain

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.

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







				Steel

				40	ANSI	1/2"	0.312"	5/16"	940	00000000	00000




						Corrosion-Resistant-Coated Steel

						40	ANSI	1/2"	0.312"	5/16"	940	000000	0000




								Corrosion-Resistant 304 Stainless Steel

								40	ANSI	1/2"	0.312"	5/16"	95	0000000	00000




										Highly Corrosion-Resistant 316 Stainless Steel

										40	ANSI	1/2"	0.312"	5/16"	95	000000	000000

Attachment Roller Chain

A-1 Attachment

K-1 Attachment

D-3 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.

Pin—The pins are extended to trip switches.

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

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.

	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



		A-1	Tab	40	ANSI	1/2"	0.312"	5/16"	815	0000000	000000	000000	00000	00000000	00000


		K-1	Tab	40	ANSI	1/2"	0.312"	5/16"	815	0000000	00000	000000	0000	00000000	0000
		D-3	Pin	40	ANSI	1/2"	0.312"	5/16"	815	0000000	00000	0000000	0000	00000000	0000

Low-Maintenance Roller Chain and Links


Chain

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.

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







				Steel

				40	ANSI	1/2"	0.312"	19/64"	810	Lubricated	000000	000000




						Corrosion-Resistant Nickel-Plated Steel

						40	ANSI	1/2"	0.312"	19/64"	680	Lubricated	000000	00000


						Sealed Bearings







										Steel

										40	ANSI	1/2"	0.312"	5/16"	830	Required	00000000	00000

Hollow-Pin Roller Chain and Links


Chain

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.

	Roller Chain							Chain
	Trade No.	Std.	Pitch	Roller Dia.	Roller Wd.	Working Load, lb.	Pinhole Dia.		Per Ft.
Single Strand







				Steel

				40	ANSI	1/2"	0.312"	5/16"	390	0.157"	000000	000000




						Corrosion-Resistant 304 Stainless Steel

						40	ANSI	1/2"	0.312"	5/16"	95	0.157"	000000	00000

Dry-Running Roller Chain and Links


Chain

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







				Plastic with 304 Stainless Steel Pins and Side Plates

				40	ANSI	1/2"	0.312"	5/16"	95	Not Required	0000000	000000

Flat-Edge Roller Chain and Links

Chain

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.

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







				Steel

				40	ANSI	1/2"	0.312"	5/16"	930	0000000	000000

Flexible Roller Chain and Links


Chain

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







				Steel

				40	ANSI	1/2"	0.312"	5/16"	400	13.78"	000000	000000