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.
How do you read a roller chain size?
Roller Chain Identification 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 is a 25 roller chain?
#25 roller chain is a 1/4″ pitch ANSI Standard roller chain designed for light-duty or space confined applications. It’s the smallest size roller chain on the ANSI spectrum of roller chains but offers ample performance, strength, and durability for its small form factor.
What is the difference between 60 and 60H roller chain?
ANSI #60H Heavy Roller Chain. It has a 3/4″ pitch (center of one pin to the center of the next) and thicker side plates than traditional 60 roller chain (0.125″ vs 0.094″). The result of this is a roller chain that can stand up to higher shock loads and have a longer wear life.
What does a 520 chain mean?
(3) The size of a chain is designated by a three-digit number (520, for example). The distance from the center of one pin to the center of the next is called pitch. Pitch is represented by the first digit, which is 4, 5 or 6. Adding to the complication is roller diameter, which affects proper chain fitment too.
How wide is a 520 chain?
15.88mm
Metric Dimensions
| Chain | Pitch | Width |
|---|---|---|
| 420 | 12.70mm | 6.35mm |
| 428 | 12.70mm | 7.75mm |
| 520 | 15.88mm | 6.35mm |
| 525 | 15.88mm | 7.85mm |
What is the offset link of roller chain?
½ links
Offset links, also known as ½ links or crank links, are used to make a chain an odd number of pitches in length, often used to shorten a chain by one pitch. Offset links are available in two different configurations.