SBR® Double Pitch Roller Chains
Double Pitch roller chains are produced in accordance with the ASME/ANSI B29.3
(Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. In general,
these chains are dimensionally similar to ASME/ANSI standard products
except that the pitch is double. They are available in the Transmission Series, Conveyor Series with standard sized
roller, and Conveyor Series with large (oversized) roller.
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Transmission
Conveyor
The Transmission Series is often used on drives with slow to moderate
speeds, low chain loads and/or long center distances. Side
plates have a “figure-8” contour. The chain number is obtained by adding 2000 to the chain
number and an “A” prefix. For example; Double Pitch Transmission Series
#40 is A2040, #50 is A2050 etc. Some manufacturers do not use the “A”
prefix and denote the chains as 2040, 2050, etc. Available in Nickel Plated, Stainless
Steel, Perfect Coat Plus®®, and Self -Lube.
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Conveyor Series
with Standard Roller
The Conveyor Series with Standard Roller is often used for light to
moderate conveyor applications with or without attachments.
These chains have straight side plates for improved sliding properties. Pitch sizes of 1 1/2” and higher
have “Heavy Series’~ link plates. The chain number is found by adding 2000
to the chain number and a “C” prefix. Heavy style chains have an “H” suffix.
For example; Double Pitch Conveyor Series #50 roller chain with a standard
sized roller is C2050, #60 is C2060H because the pitch of C2060H is 2
times .75” (#60) which is 1 1/2”. Available in Nickel Plated, Stainless
steel, Perfect Coat Plus®®, and Self -Lube.
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Conveyor Series with Large Roller
Large rollers allow for rolling action which reduces friction. The chain number is found in the
same way as above except that a “2” is added (C2042, C2102H, etc.). Available in Nickel Plated, Stainless
steel, Perfect Coat Plus®®, and Self -Lube.
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