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- C-JBHM
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Bushings For Locating Pins - Shouldered, Press Fit Easy Mounting (C-JBHM8-6)
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MiSUMi Economy
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Product DetailProduct Overview of Bushings for Fixtures
The economy series Bushings for Fixtures is a mechanical positioning part that is used in conjunction with a positioning pin to achieve a guiding effect. The shouldered press-fit type is widely used, and the shoulder contacts the workpiece,effectively controlling the installation position.And it can effectively prevent the rapid wear of the workpiece. It is an economy series product from MISUMI.
Product Feature of Bushings for Fixtures
Feature 1: Fixture bushing Shouldered press-fit type can support the body through the shoulder, and is suitable for applications where it is difficult to adjust the hole depth, press-fit installation, outer diameter press-fit dimensiontolerance: M7.
Feature 2: Bushings for Fixtures low cost and stock models can be shipped on the same day.
Feature 3: Bushings for Fixtures auxiliary line can be used for reference during press-fit installation to ensure smooth bushing installation.
Feature 4: material: bearing steel (SUJ2).
Feature 2: Bushings for Fixtures low cost and stock models can be shipped on the same day.
Feature 3: Bushings for Fixtures auxiliary line can be used for reference during press-fit installation to ensure smooth bushing installation.
Feature 4: material: bearing steel (SUJ2).
Dimensional Drawing of Bushings for Fixtures
The inner diameter tolerance of bushing is high. If a vernier caliper is used for detection, the measurement result will be too small. It is recommended to use ahigh-precision measuring tool (internal micrometer or plug gauge, etc.) for detection.Specifications Overview of Bushings for Fixtures
■ Material Specification Table
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating on other pages.
The inner diameter tolerance of bushing is high. If a vernier caliper is used for detection, the measurement result will be too small. It is recommended to use ahigh-precision measuring tool (internal micrometer or plug gauge, etc.) for detection.
| Type of Bushings for Fixtures |  Material |  Surface Treatment |  Hardness |
| m7 | |||
| C-JBHM | Equivalent to SUJ2 | - | 58HRC～ |
If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating on other pages.The inner diameter tolerance of bushing is high. If a vernier caliper is used for detection, the measurement result will be too small. It is recommended to use ahigh-precision measuring tool (internal micrometer or plug gauge, etc.) for detection.Example Use of Bushings for Fixtures
Example introduction: Bushings for Fixtures positioning pin in pick and place mechanism
Design summary:
① An example of using a swing cylinder to achieve linear and rotary motion through pneumatic drive, and moving a small substrate through a suction cup.
② In the case of a long pin, if the air vent is not provided, the pin and bushing are not easy to pull out. It is necessary to provide a air vent on the bushing side or the positioning pin side.
Intended use of Bushings for Fixtures:
The axial structure of the swing cylinder can ensure positioning accuracy while saving space through the coordination of positioning pins/shouldered bushings.
Design summary:
① An example of using a swing cylinder to achieve linear and rotary motion through pneumatic drive, and moving a small substrate through a suction cup.
② In the case of a long pin, if the air vent is not provided, the pin and bushing are not easy to pull out. It is necessary to provide a air vent on the bushing side or the positioning pin side.
Intended use of Bushings for Fixtures:
The axial structure of the swing cylinder can ensure positioning accuracy while saving space through the coordination of positioning pins/shouldered bushings.
Application Industries of Bushings for Fixtures
| Lithium battery | Smart phone | Electronic & Electrical Appliances | ||
 |  |  | ||
| Semiconductor | Medical | Food | ||
 |  |  |
Related Products of Bushings for Fixtures
| Mounting position adjusting type Bushings for Fixtures Adhesive shouldered | Press-fit type convenient positioning Bushings for Fixtures Straight type | Mounting position adjusting type Bushings for Fixtures Adhesive straight type | ||
 |  |  | ||
| Recommended model: C-JBHG6-8 | Recommended model: C-JBAM10-15 | Recommended model: C-JBAG10-15 |
Specification Table of Bushings for Fixtures
 | Part Number ( Type· d) | - |  L | |
| C-JBHM5 | - | 8 |
■ Dimension Specification Table
| Part Number | L Selection | D | D Tolerance | H | Wall Thickness (N) | T | R | |||||||
| Type of Bushings for Fixtures | d | d Tolerance | m7 | |||||||||||
| F7 | ||||||||||||||
| Economy Series Shouldered Type (m7) C-JBHM | 4 | +0.022 +0.010 | 5 | 6 | 8 | +0.021 +0.006 | 12 | 2 | 3 | 1 | ||||
| 5 | 5 | 6 | 10 | 14 | 2.5 | |||||||||
| 6 | 5 | 6 | 8 | 10 | 12 | 15 | 2 | |||||||
| 8 | +0.028 +0.013 | 5 | 6 | 8 | 10 | 12 | 15 | 12 | +0.025 +0.007 | 16 | 2 | 4 | 2 | |
| 10 | 6 | 8 | 10 | 12 | 15 | 19 | 2.5 | |||||||
| 12 | +0.034 +0.016 | 8 | 10 | 12 | 18 | 22 | 3 | |||||||
Specification Table
 | Part Number ( Type· d) | - |  L | |
| C-JBHM5 | - | 8 |
■ Dimension Specification Table
| Part Number | L Selection | D | D Tolerance | H | Wall Thickness (N) | T | R | |||||||
| Type | d | d Tolerance | m7 | |||||||||||
| F7 | ||||||||||||||
| Economy Series Shouldered Type (m7) C-JBHM | 4 | +0.022 +0.010 | 5 | 6 | 8 | +0.021 +0.006 | 12 | 2 | 3 | 1 | ||||
| 5 | 5 | 6 | 10 | 14 | 2.5 | |||||||||
| 6 | 5 | 6 | 8 | 10 | 12 | 15 | 2 | |||||||
| 8 | +0.028 +0.013 | 5 | 6 | 8 | 10 | 12 | 15 | 12 | +0.025 +0.007 | 16 | 2 | 4 | 2 | |
| 10 | 6 | 8 | 10 | 12 | 15 | 19 | 2.5 | |||||||
| 12 | +0.034 +0.016 | 8 | 10 | 12 | 18 | 22 | 3 | |||||||
Part Number
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Basic Information
| Type | Bushing | Basic Shape | Flanged | Fixing Support | Not Provided |
|---|---|---|---|---|---|
| Material | SUJ2 Equivalent | Surface Treatment | Not Provided | I.D. Shape | Circular |
Please check the type/dimensions/specifications of the part C-JBHM8-6 in the Bushings For Locating Pins - Shouldered, Press Fit Easy Mounting series.
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: Will the fixture bushing rust?
- Answer: Products without surface treatment will rust. It is recommended to regularly apply antirust oil for maintenance or choose products with surface treatment (no-electro nickel plated), which can prevent rust in normal atmospheric environments. No-electro nickel plated surface can effectively prevent rust.
- Question: What tools are suitable for measuring the inner diameter of the fixture bushing?
- Answer: If the inner diameter tolerance of the fixture bushing is within 0.02mm, common vernier calipers and other measuring tools with general accuracy are not suitable. It is recommended to use a high accuracy plug gauge or an internal micrometer for measurement.
- Question: Will the inner diameter of the fixture bushing become smaller after installation?
- Answer: It will become smaller, and m6 will shrink more than p6 after installation, so please pay attention during hole machining. For detailed change values, please refer to the precautions: change in inner diameter of the fixture bushing during press-fit.
- Question: What are the options for fixture bushing outer diameter tolerance?
- Answer: Optional tolerances for the outer diameter of fixture bushing: m6, p6, m7, g7. Basically it can meet the needs of installation and positioning under general conditions.
- Question: What positioning pins are commonly used together with fixture bushings?
- Answer: The fixture bushing is of basic shape, which is usually suitable for supporting positioning pins, checking insertion pins for fixtures, etc.
Product variants
| Part Number |
|---|
| C-JBHM10-12 |
| C-JBHM10-6 |
| C-JBHM10-8 |
| C-JBHM12-10 |
| C-JBHM12-12 |
| C-JBHM8-8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Inner Diameter (mm) | Outer Diameter (mm) | Length L (mm) |
|---|---|---|---|---|---|---|---|---|
₹ 426.00 | 1 Piece(s) | Available |
Same day
Stock | 10 | 10 | 15 | 12 | |
₹ 278.00 | 1 Piece(s) | Available |
Same day
Stock | 10 | 10 | 15 | 6 | |
₹ 285.09 | 1 Piece(s) | Available |
Same day
Stock | 10 | 10 | 15 | 8 | |
₹ 326.93 | 1 Piece(s) | Available |
Same day
Stock | 10 | 12 | 18 | 10 | |
₹ 740.63 | 1 Piece(s) | Available |
Same day
Stock | 10 | 12 | 18 | 12 | |
₹ 379.00 | 1 Piece(s) | Available |
Same day
Stock | 10 | 8 | 12 | 8 |
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