# What does 12B mean on chain?

## What does 12B mean on chain?

12B roller chain is a 3/4″ pitch metric size chain that is manufactured to conform to all BS / DIN / ISO dimensional standards. Special orders for 12B roller chain are available for qualified OEM’s & resellers.

### What pitch is 12B chain?

12B-1 Roller Chain dimensions – ISO R606 Roller Chain

Chain No. DIN P x W Pitch P
12B-1 3/4 X 7/16″ 19.05

#### How do I know my roller chain size?

Most roller chain has the size stamped right into the side plates. You may see something like “40”, “C2080H” or “10B” stamped in, which the industry number that represents the chain size. Old chains will most likely need to be cleaned in order to see the size.

What size is 20B chain?

20B-1 Roller Chain dimensions – ISO R606 Roller Chain

Chain No. DIN P x W Sideplates Height h1
20B-1 1 1/4 x 3/4″ 26.00

What is the difference between #40 and #41 roller chain?

#40 will be the beefiest chain in this class. This will help with thicker sprockets since there is more room between the side plates. #41 will look just like the #420 chain, but will stand shorter.

## What do roller chain numbers mean?

The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc.

### What does the number mean on roller chain?

The first number is the pitch size in 1/8 inch, ie 4/8 = 1/2 inch pitch. The second number refers to the chain being a roller chain, 0 = roller chain. A 5 replacing the 0 would indicate a bush chain. The suffix, as with European standard chain, refers to the number of strands in the chain, that is 2 = duplex chain.

#### What size is 40 roller chain?

1/2″
40-1 Roller chain made to ANSI b 29.1 is 1/2″ or 12.7 mm pitch. It is available in single strand 40-1 duplex 40-2 and triplex 40-3.

What is the pitch of a roller chain?

Taking a quick time out for a review of definitions—the pitch of a roller chain is the distance between the center of one pin to the center of the next pin.

What size is a 50 chain?

5/8″
# 50 chain is an American standard size that is built to ANSI B29. 1 standards. This size is commonly referred to as 5/8″ pitch roller chain, which comes from the pin to pin measurement. 50 chain is one of the most widely used chain sizes out of the 14 available ANSI standard chains.