ANSI 12B Roller Chain | McMaster-Carr

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Roller Chain Trade Number

System of Measurement

Pitch

Component

Strand Type

Length

Material

Roller Diameter

Roller Chain Standard

Chain Style

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Roller Width

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Roller Chain Pitch Type

Specifications Met

Number of Teeth

Shaft Diameter

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For Roller Chain Strand Type

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About Roller Chain and Sprockets

Metric Roller Chain and Links

This chain conforms to ISO 606B and is compatible with BS 228 (British standard) and DIN 8187 (German standard).

Connecting links are also known as master links. They're used to join the ends of a chain length. The side plate is easy to remove for attaching to a chain. Adding-and-connecting links are also known as half links and offset links. They can join chain that requires an odd number of links. For trade number 06B and up, the side plate is easy to remove for attaching them to chain.

For technical drawings and 3-D models, click on a part number.

Single Strand

Chain

Connecting Link

Adding-and-Connecting Link

Chain

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.	Lengths, ft.		Per Ft.
Steel
12B	19.05	0.750"	12.07	11.68	1,500	1-20, 50, 100	0000000	000000

Connecting Links

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.		Each
Steel
12B	19.05	0.750"	12.07	11.68	1,500	0000000	00000

Adding-and-Connecting Links

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.		Each
Steel
12B	19.05	0.750"	12.07	11.68	1,500	0000000	00000

Corrosion-Resistant Metric Roller Chain and Links

Chain

Connecting Link

Adding-and-Connecting Link

Made of stainless steel, this chain has excellent corrosion resistance. It conforms to ISO 606B and is compatible with BS 228 (British standard) and DIN 8187 (German standard).

For technical drawings and 3-D models, click on a part number.

	Pitch					Chain			Connecting Links		Adding-and-Connecting Links
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.	Length, ft.		Per Ft.		Each		Each
Single Strand
18-8 Stainless Steel
12B-SS	19.05	0.750"	12.07	11.68	200	1-10, 20	00000000	000000	00000000	00000	00000000	000000

High-Strength Corrosion-Resistant Metric Roller Chain and Links

This treated steel chain has over seven times the capacity of stainless steel chain. It conforms to ISO 606B and is compatible with BS 228 (British standard) and DIN 8187 (German standard).

Connecting links are also known as master links. They're used to join the ends of a chain length. The side plate is easy to remove for attaching to a chain. Adding-and-connecting links are also known as half links and offset links. They can join chain that requires an odd number of links. The side plate is easy to remove for attaching to chain.

For technical drawings and 3-D models, click on a part number.

Single Strand

Chain

Connecting Link

Adding-and-Connecting Link

Chain

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.	Length, ft.		Per Ft.
Corrosion-Resistant-Coated Steel
12B	19.05	0.750"	12.07	11.68	1,500	1-10, 20, 50, 100	000000	000000

Connecting Links

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.		Each
Corrosion-Resistant-Coated Steel
12B	19.05	0.750"	12.07	11.68	1,500	00000000	00000

Adding-and-Connecting Links

	Pitch
Roller Chain Trade No.	mm	in.	Roller Dia., mm	Roller Wd., mm	Working Load, lbs.		Each
Corrosion-Resistant-Coated Steel
12B	19.05	0.750"	12.07	11.68	1,500	00000000	00000

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.

Gauges

For Single-, Double-, and Triple-Strand ISO Roller Chain
For Roller Chain Trade Size	Material		Each
12B	Steel	0000000	0000000

Gauges with Plastic Case

For Single-, Double-, and Triple-Strand ISO Roller Chain
No. of Gauges	For Roller Chain Trade Size	Material	Includes		Each
5	06B, 08B, 10B, 12B, 16B	Steel	Chain Indentification Tool	0000000	0000000

Sprockets for Metric Roller Chain

Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.

For technical drawings and 3-D models, click on a part number.

For ISO 12B Roller Chain (19.05 mm Pitch)
Number of Teeth	For Shaft Dia., mm	For Max. Shaft Dia., mm	OD, mm	Overall Wd., mm	Hub Dia., mm	Material	Specifications Met		Each
11	12	32	79.36	35	47	Steel	DIN 8187, ISO 606	00000000	000000
12	12	35	85.35	35	53	Steel	DIN 8187, ISO 606	00000000	00000
14	12	42	97.36	35	64	Steel	DIN 8187, ISO 606	00000000	00000
15	12	45	103.37	35	70	Steel	DIN 8187, ISO 606	00000000	00000
16	16	50	109.39	35	75	Steel	DIN 8187, ISO 606	00000000	00000
17	16	52	115.42	35	80	Steel	DIN 8187, ISO 606	00000000	00000
18	16	52	121.45	35	80	Steel	DIN 8187, ISO 606	00000000	00000
19	16	60	127.49	35	90	Steel	DIN 8187, ISO 606	00000000	00000

Idler Sprockets for Metric Roller Chain

Keep constant tension on your drive with these sprockets that press against your metric ISO roller chain to take up slack and reduce wear and vibration. They rotate freely on built-in ball bearings, which are double sealed to keep dirt out, and are for use with roller chain tensioners. All come with a finished bore that fits directly onto your shaft—no need for machining. These sprockets meet ISO 606, which is an international standard for dimensions and materials.

For technical drawings and 3-D models, click on a part number.

						Bearing
Number of Teeth	For Shaft Dia., mm	OD, mm	Overall Wd., mm	Hub Dia., mm	Material	Type	Material	Specifications Met		Each
For ISO 12B Roller Chain (19.05 mm Pitch)
15	16	100	18	40	Steel	Ball	Steel	ISO 606	0000000	000000

Taper-Lock Bushing-Bore Sprockets for Metric Roller Chain

While their teeth fit into metric ISO roller chain, these sprockets use taper-lock bushings to grip shafts. That means you can switch to a different diameter shaft by changing the bushing instead of machining the sprocket. Bushings mount flush inside these sprockets; secure them in place by tightening the set screws included with the bushings. These sprockets have an extended hub that makes them more stable and durable than flat sprockets. All meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.

For technical drawings and 3-D models, click on a part number.

For Single-Strand Roller Chain

For ISO 12B Roller Chain (19.05 mm Pitch)
Number of Teeth	For Bushing Style	OD, mm	Overall Wd., mm	Hub Dia., mm	Teeth Heat Treatment	Material	Specifications Met		Each
13	1210	89.92	25	62.69	Hardened	Steel	DIN 8187, ISO 606	00000000	000000
15	1610	101.85	25	70.64	Hardened	Steel	DIN 8187, ISO 606	00000000	00000
19	1610	125.98	25	82.55	Hardened	Steel	DIN 8187, ISO 606	00000000	000000

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.

For technical drawings and 3-D models, click on a part number.

For Single-Strand ANSI, ISO Roller Chain
For Roller Chain Trade Size	Tension Force, lbs.	OD	Max. Speed, fpm	Maximum Temperature, ° F	Material		Each
60, 12B	7	7.173"	1,220	155°	Plastic	000000	0000000
60, 12B	8	6.102"	1,060	155°	Plastic	000000	000000
60, 12B	15	8.169"	1,250	155°	Plastic	0000000	000000