(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
- [Announcement] MISUMI Malaysia website new user interface. Clearer navigation, easy product search and more. Explore now! May contact us at (60) 3 7890 6399 for any inquiries.
Standard V-Pulley (21/2-A-1)
"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.
(i)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.
Japanese Only
Part Number
Configured Part Number is shown.
21/2-A-1
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
| Part Number |
|---|
| 21/2-A-1 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Groove shape | Number of grooves (piece) | Type | Shape (mm) |
|---|---|---|---|---|---|---|---|---|---|
MYR 58.03 | 1 Piece(s) | 5 Day(s) or more | 10 | A | 1 | 11U | 63.5 |
Loading...
Basic Information
| Additional Work | No |
|---|
Please check the type/dimensions/specifications of the part 21/2-A-1 in the Standard V-Pulley series.
Specification/Dimensions
-
type
- A-1
- A-2
- A-3
- B-1
- B-2
- B-3
- B-4
- M-1
-
Groove shape
-
Number of grooves(piece)
- 1
- 2
- 3
- 4
-
Type
-
Shape(mm)
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 5 Day(s) or Less
- 7 Day(s) or Less
- 8 Day(s) or Less
- 9 Day(s) or Less
- 11 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Products like this...
| Part Number |
|---|
| 10-A-3 |
| 10-B-1 |
| 10-B-2 |
| 21/2-A-2 |
| 21/2-A-3 |
| 21/2-B-1 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Groove shape | Number of grooves (piece) | Type | Shape (mm) |
|---|---|---|---|---|---|---|---|---|---|
MYR 520.49 | 1 Piece(s) | 7 Day(s) or more | 10 | A | 3 | 20X | 254 | ||
MYR 298.27 | 1 Piece(s) | 7 Day(s) or more | 10 | B | 1 | 10X | 254 | ||
MYR 447.46 | 1 Piece(s) | 5 Day(s) or more | 10 | B | 2 | 20X | 254 | ||
MYR 86.27 | 1 Piece(s) | 5 Day(s) or more | 10 | A | 2 | 11U | 63.5 | ||
MYR 107.13 | 1 Piece(s) | 7 Day(s) or more | 10 | A | 3 | 11U | 63.5 | ||
MYR 67.83 | 1 Piece(s) | 5 Day(s) or more | 10 | B | 1 | 11U | 63.5 |
Additional Products in this Category
- ISOMEC Bushing / Adapter
- Isomec - bushing bolt Onhub
- NS Standard V Pulley A
- SNS JIS V Pulley A
- SNS Power Sheave 3V
- STB Sheave 3V
- STB Sheave 5V
- JIS V-Pulley, C Type
Customers Who Viewed This Item Also Viewed
-
-
-
-
-
-
-
-
-
-
-
Pillow Block Unit with Set Screws, Cylindrical Hole Shape, UCPASAHI SEIKO
Standard Price : MYR 63.93-
Days to Ship : 1 Day(s) or more
-
Tech Support
- Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations)
- Tel：(60) 3 7890 6399
- 9:00am - 6:00pm (Monday - Friday)
9:00am - 1:00pm (Saturday) - Technical Inquiry
- Credit Card
- Bank Transfer
Social Media
MISUMI Contact
Copyright © MISUMI Corporation All Rights Reserved.
How can we improve?
How can we improve?
While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Customer Privacy Policy
Thank you for your cooperation.
While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Please use the inquiry form.
Customer Privacy Policy