Page 421 - MiSUMi FA Mechanical Components Economy Series

Economy Series
Quality Assurance Flat Belt Pulleys/ Idlers

2Economy series flat belt pulleys have knurled surfaces, increasing anti-slip
capacity by 4.7 times

MISUMI standard product MISUMI Economy series 8
Flat Belt Pulley Static Friction Force (N)
Non Knurled Surface Knurled Surface
MISUMI
Economy series 21 Cam Followers
Knurled Type Flat Belts / Rollers /
MISUMI
Standard product 4.5 Anti-slip capacity increased by4.7 times
Non Knurled
Type
0 5 10 15 20 25 Rollers Flat Belts /
Test: static friction force test for belts and pulleys
Method: fix the flat belt pulley and use the electronic force P.417
gauge to measure the static friction force of the *Under normal use, there is no obvious difference in belt wear
belt under the same load compared with non-knurled pulleys
Equipment: electronic force gauge Flat Belts

2Guaranteed coaxiality of no more than 0.05, effectively reducing the belt P.423
vibration when running.

2Flat Belt Pulley 2Flat Belt Idler Molded Rollers Urethane
1П0.05 1П0.05 P.429

Bearings
Urethane Molded
P.433

Ball Rollers
P.435

2Tightening torque is increased by 11.8%, with locking threaded hole changed to 120°. Followers Cam
MISUMI standard product MISUMI Economy series
P.443
Tightening Torque (N·m) Locking Threaded Hole (90°) Locking Threaded Hole (120°)
Shaft Hole Specifications Shaft Hole Specifications
Locking Round Hole + Tapped Round Hole + Tapped Followers Roller
Threaded P P
Hole 6.6 90°
(120°) 120° P.453
Locking
Threaded 11.8% increase in tightening torque
Hole 5.9
(90°) New JIS Keyway + Tapped New JIS Keyway + Tapped
N·NK N
5.4 5.8 6.2 6.6
90°
120°
Test: sliding torque test
Method: fix the pulley, rotate the central shaft, and test the
rotational torque at the moment of sliding
Equipment: torque tester

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