Martin Sprocket & Gear Taper Bushings - Manual

B-7
BUSHINGS
Taper
Bushings
IMPORTANT NOTE: Please follow the instructions on this sheet in order for the Martin bushing to perform satisfactorily.
1008 to 3030 3535 to 6050 7060 to 1085 102100
INSTALLATION
1 Clean all oil, dirt, and paint from shaft, bushing bore, outside of bushing and component (sprocket, sheave...etc.) bore.
2 Insert bushing into component. Match the hole pattern, not the threaded holes (each hole will be threaded on one side only.)
3. Thread set or cap screws into those half threaded holes indicated by ❍ on above diagram. Mount assembly on shaft.
4. Alternately torque set or cap screws* to recommended torque setting in chart below.
5. On 3535 and larger bushings use a block, sleeve or drift and hammer large end of bushing (do not hammer bushing directly).
6. Repeat steps 4 and 5 until torque wrench reading, after hammering, is the same as before hammering.
7. Fill all unoccupied holes with grease.
REMOVAL
1. Remove all set or cap screws.
2. Insert set or cap screws in holes indicated by ● on drawing. Loosen bushing by alternately tightening set or cap screws.
3. To reinstall, complete all seven (7) installation instructions.
WARNING: Because of the possible danger to person(s) or property from accidents which may result from the
improper use of products, it is important that correct procedures be followed: Products must be used in accordance
with the engineering information specified in the catalog. Proper installation, maintenance and operation procedures
must be observed. The instructions given above must be followed. Inspections should be made as necessary to
assure safe operation under prevailing conditions. All rotating power transmission products when used in a drive are
potentially dangerous and must be guarded by the user as required by applicable laws, regulations, standards, and
good safety practice. (Refer to ANSI Standard B15.1.)
RECOMMENDED TORQUE TABLE
1008, 1108 1/4 - 20 Socket Set Screw 55
1210, 1215, 1310 3/8 - 16 Socket Set Screw 175
1610, 1615 3/8 - 16 Socket Set Screw 175
2012 7/16 - 14 Socket Set Screw 280
2517, 2525 1/2 - 13 Socket Set Screw 430
3020, 3030 5/8 - 11 Socket Set Screw 800
3535 1/2 - 13 Socket Head Cap Screw 1,000
4040 5/8 - 11 Socket Head Cap Screw 1,700
4545 3/4 - 10 Socket Head Cap Screw 2,450
5050 7/8 - 9 Socket Head Cap Screw 3,100
6050, 7060, 8065 1-1/4 -7 Socket Head Cap Screw 7,820
10085, 120100 1 - 1/2 - 6 Socket Head Cap Screw 13,700
* If two bushings are used on same component and shaft, fully tighten one bushing
before working on the other.
Bushing No. Set or Cap Screw
Wrench Torque
in. / lbs.
CAUTION
WARNING: USE OF ANTI-
SEIZE LUBRICANT ON
TAPERED CONE
SURFACES OR ON BOLT
THREADS WHEN
MOUNTING MAY RESULT
IN DAMAGE TO SHEAVES
AND SPROCKETS. THIS
VOIDS ALL
MANUFACTURER'S
WARRANTIES.
B1-B16 3/27/03 12:18 PM Page 7