Standard V-Pulley

Caution
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.
Product Description
"Shaft hole, keyway and push screw machining standardized."
[Features]
· Japan's first standard inch size product.
· Consistent production from casting to machining and surface treatment.
· Cell production method allows the production of many kinds of products in low volume, with short lead times.
· Imbalance mass allowance on outer circumference is 0.2% of pulley mass or 3 g, whichever is larger.
· Same accuracy as the balance prescribed in JIS B 1854-1987, "General use V-pulley".* M-type pulleys are exempt.
[Applications]
· Fans, etc.
Can Be Used For Blowers, Etc.

STD - A - 1 external appearance

10X dimensional drawing

11U dimensional drawing

20X dimensional drawing

21U dimensional drawing

23U
Product standard

Product standard
Balance
Imbalance mass allowance on the outer circumference is 0.2% or 3 g of the pulley mass, whichever is larger. This is the same accuracy stipulated by JIS B 1854-1987 "General Purpose V Pulleys". Excludes M type pulleys.
Groove dimensions
| Groove Shape | Outer Diameter de (Inches) | α ± 0.5 (°) | L0 | w1 | h | e | f ± 1 |
|---|---|---|---|---|---|---|---|
| M | 3 Or Less | 34 | 8.0 | 9.65 | 9 | - | 8.5 |
| Over 3, And 3 1/2 Or Less | 36 | 9.75 | |||||
| Over 3 1/2 | 38 | 9.86 | |||||
| A | 4 Or Less | 34 | 9.2 | 11.95 | 12.5 | 16 ± 0.4 | 10.0 |
| Over 4, And 5 Or Less | 36 | 12.12 | |||||
| Over 5 | 38 | 12.30 | |||||
| B | 6 1/2 Or Less | 34 | 12.5 | 15.86 | 15 | 20 ± 0.4 | 12.0 |
| Over 6 1/2, And 8 Or Less | 36 | 16.07 | |||||
| Over 8 | 38 | 16.29 |
Unit: mm
Groove dimensions
| Outer Diameter de (Inches) | Outer Circumference Vibration Tolerance | Rim Side Vibration Tolerance | Diameter Tolerance |
|---|---|---|---|
| 5 Or Less | 0.2 | 0.2 | ±0.6 |
| Over 5, And 6 1/2 Or Less | 0.25 | 0.25 | ±0.8 |
| Over 6 1/2, And 9 Or Less | 0.3 | 0.3 | ±0.8 |
| Over 9, And 12 Or Less | 0.35 | 0.35 | ±0.8 |
| Over 12, And 16 Or Less | 0.4 | 0.4 | ±1.2 |
| Over 16, And 24 Or Less | 0.5 | 0.5 | ±1.2 |
Unit: mm