Page 245 - MiSUMi FA Mechanical Components Economy Series

Quality Assurance Economy Series
Timing Pulleys

2Tooth Profile Measurement of MISUMI Timing Pulleys Pulleys Timing
P.241
· MISUMI timing pulley tooth profiles conform to JIS and ISO standards
Example: The following are the test results of S5M tooth profile. The products of MISUMI specification conform to JIS/ISO standards,
and there is a difference in their engagement with timing belt between the generic products in the market and the standard sizes. Idlers
Generic products in the market * Tooth profile does not conform to JIS/ISO standards. MISUMI Economy series tooth profiles conform to JIS/ISO standards.
The measured value of the tooth bottom circle is too large, which The measured value of the tooth top circle and tooth bottom P.263
is unqualified and has poor engagement with the timing belt. circle is qualified, and has good engagement with the timing belt.

R0.5605mm R0.2575mm P.289
Timing Belts

R0.2528mm
R0.6111mm
rb Left rb Right rb Left rb Right Closed Belts
P.317
* Generic products in the market are similar products randomly purchased by our company from online or offline markets
* The test data are obtained through testing by our company, which are for reference only
2Longer Timing Belt Life Belts Open End

· MISUMI Economy series timing pulley, with chamfering and deburring treatment at the tapped hole,
is not easy to wear the timing belt, and the price is cheap while increasing the lifetime of the timing belt. P.323
Belt Wear Wear Test of Timing Pulley Belt condition after the test of timing belt pulley without
chamfer on the tapped hole: there are obvious wear marks left
(Unit: mg) by the pulley tooth tapped hole on the belt tooth surface. Open End Belts Clamp Plates for
200
Belt Wear
Reduced by 2Test Conditions P.327
150 57% Belt Specification: S5M 5
Belt Width: 150mm
Number of teeth of
190 drives side pulley: 20
100 Number of teeth of
driven side pulley: 60
Rotational speed: Idlers / Timing Belts Timing Pulleys /
80 3000rpm
50 Tension (N): 160N
Test time: 24H
Tapped Hole Tapped Hole
Not Chamfered Chamfered * Generic products in the market are similar products randomly
* Cases of poor quality of generic products in the market purchased by our company from online or offline markets
* The test data are obtained through testing by our company, which are
for reference only
2More Convenient On-site Assembly
· MISUMI Economy series timing pulley is chamfered at the shaft Generic products in the market * MISUMI Economy series
hole and tapped hole for easy installation, reducing assembly
time by 27% compared to the timing pulley not chamfered. Tapped Hole Not Chamfered Tapped Hole Chamfered
Assembly Time Assembly Test of Timing Pulley
(Unit: Second)
Overall
80 Reduced
70 67
27%
60
50 49
40 Generic products in the market * MISUMI Economy series
62 Shaft Hole Not Chamfered Shaft Hole Chamfered
30
46 Screw Assembly
20
10
0 5 3 Rotating Shaft Assembly
Generic products MISUMI
in the market Economy series
* Generic products in the market are similar products randomly purchased by our
company from online or offline markets
* The test data are obtained through testing by our company, which are for
reference only
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