Martin Sprocket & Gear Chain Couplings - Manual

Chain Coupling Installation Instructions
1. Install flanges (sprockets) on shafts. If flanges are
bushed type install per instructions packed with
bushings.
2. Locate connected machines. To allow for shaft “end
float” space flanges “B” distance apart shown below.
Shaft ends must not project beyond the flanges.
Coupling
Size
40 CHAIN 50 CHAIN 60 CHAIN 80 CHAIN 100 CHAIN 120 CHAIN
“B”
Dimension
27/32 1-1/32 1-11/32 1-11/16 2-1/16 2-11/16
3. Align shafts. Some parallel and angular misalignment usually develops in
usage because of shifting of the driving and driven units. Therefore, the shaft
must be aligned as accurately as possible during installation to minimize
wear. It will result in far longer service life with lower maintenance and
operating cost.
4. Wrap chain around flanges and secure ends. Chain should move freely on
flanges when coupling is properly aligned.
Lubrication
1. Coupling without cover.
Brush thoroughly at least once a week with a medium body machine
or engine oil or with a good quality roller bearing grease of medium
constancy. Particular attention to lubrication is required for coupling
operating at high speeds. Re-lubricate frequently as required.
2. Coupling with cover.
a. Work as good quality roller bearing grease of soft or medium consistency
that minimum melting point of 260 degrees into the chain around its
perimeter, being careful to completely lubricate the chain rollers and
sprocket teeth. Do not use a cup or thick grease.
b. Install coupling cover as per manufacturer’s instructions and fill with same
grease.
3. Re-lubrication: Re-lubricate after initial 100 hours and once per year
thereafter.
4. Check alignment and setscrews at the above same intervals.
B