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Keyless Bushing (Fastening Fittings)（Allowable Torque Range：20.1~50.0）
An online store for keyless bushings (fastening fittings). In MISUMI's e-catalog, specifications and dimensions such as the shaft hole diameter, allowable torque, main body material, surface processing, boss diameter and delivery date can be selected in single clicks, making it easy to find the desired ...Readmore
An online store for keyless bushings (fastening fittings). In MISUMI's e-catalog, specifications and dimensions such as the shaft hole diameter, allowable torque, main body material, surface processing, boss diameter and delivery date can be selected in single clicks, making it easy to find the desired keyless bushing.
[What is a keyless bushing (fastening fitting)?]
A keyless bushing is a fastener that can fix shafts and hubs (gear, sprocket, pulley, etc.) without key grooving. By tightening the bolt, drag and friction force are generated in the tapered fitting part, causing it to fasten by the resultant force.
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![[Clean & Pack]MechaLock - Compact](http://content.misumi-ec.com/image/upload/t_product_view_b/v1/p/jp/product/series/110310858959/110310858959_001_20230911105917.jpg?$product_view_b$)
![[Clean & Pack]MechaLock - Standard](http://content.misumi-ec.com/image/upload/t_product_view_b/v1/p/jp/product/series/110310859229/110310859229_001_20230911105917.jpg?$product_view_b$)
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| Brand | MISUMI | MISUMI | MISUMI | ISEL | MIKI PULLEY | MISUMI | MISUMI | SUNGIL | ISEL | SUNGIL | SUNGIL | SUNGIL | MISUMI | ISEL | SUNGIL | MISUMI | MISUMI | ISEL | ISEL | ISEL | MIKI PULLEY | KATAYAMA CHAIN | ISEL | SS | SS | SS | SUNGIL | SUNGIL | SUNGIL | SUNGIL |
| Product Series | Keyless Bushings(Mechanical Lock), Straight With Centering Function | Mechanical Lock MKA Rust-proof Standard Electroless Nickel Plating Specifications | Mechanical MKN Rust-proof Nut Tightening Type - Electroless Nickel Plating Specifications | Mechanical Lock MSA Rust-proof Standard Stainless Steel Specifications | ||||||||||||||||||||||||||
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| Days to Ship | 9 Day(s) | 1 Day(s) or more | 1 Day(s) or more | 1 Day(s) or more | 5 Day(s) or more | 9 Day(s) | 1 Day(s) or more | 9 Day(s) or more | 1 Day(s) or more | 4 Day(s) or more | 9 Day(s) or more | 9 Day(s) or more | 1 Day(s) or more | 1 Day(s) or more | 9 Day(s) or more | 8 Day(s) or more | 6 Day(s) or more | 1 Day(s) or more | 4 Day(s) or more | 2 Day(s) or more | 5 Day(s) or more | 2 Day(s) or more | 4 Day(s) or more | 4 Day(s) or more | 4 Day(s) or more | 4 Day(s) or more | 9 Day(s) or more | 9 Day(s) or more | 9 Day(s) or more | 9 Day(s) or more |
| Specifications |
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| Type | Flanged | Flanged | Thin Wall | Flanged | Flanged | Thin Wall | Direct Mounting | Flanged | Thin Wall | Flanged | Thin Wall | Flanged | Nut Tightening | Nut Tightening | Flanged | Thin Wall | Flanged | Flanged | Nut Tightening | Flanged | Straight | Sleeve | Flanged | Sleeve | Flanged | Flanged | Flanged | Thin Wall | Thin Wall | Flanged |
| Shaft Bore Dia. d(Ø) | 8 | 10 ～ 18 | 8 ～ 17 | 8 ～ 12 | 8 ～ 14 | 8 ～ 10 | 12 ～ 19 | 17 ～ 19 | 8 ～ 10 | 8 ～ 12 | 8 ～ 11 | 11 ～ 12 | 8 ～ 12 | 8 ～ 12 | 11 ～ 12 | 15 ～ 17 | 12 ～ 18 | 11 ～ 12 | 8 ～ 12 | 12 ～ 18 | 14 ～ 15 | 16 ～ 22 | 15 ～ 19 | 17 | 12 | 12 ～ 13 | 12 ～ 18 | 8 ～ 11 | 15 ～ 17 | 9 ～ 13 |
| Hub Dia.(Ø) | 21 | 23 ～ 32 | 15 ～ 25 | 21 ～ 26 | 15 ～ 22 | 15 ～ 16 | 15 ～ 24 | 30 ～ 32 | 15 ～ 18 | 21 ～ 26 | 15 ～ 18 | 24 ～ 26 | 14 ～ 20 | 14 ～ 20 | 24 ～ 26 | 23 ～ 25 | 26 ～ 32 | 24 ～ 26 | 14 ～ 20 | 26 ～ 32 | 26 ～ 28 | - | 28 ～ 32 | 21 | 26 | 26 ～ 27 | 26 ～ 32 | 15 ～ 18 | 23 ～ 25 | 23 ～ 27 |
| Body Material | - | Steel / Stainless Steel | Steel / Stainless Steel | Steel | Steel / Stainless Steel | - | Steel | Aluminum | Steel | Steel | Steel | Aluminum | Steel | Steel | Steel | Stainless Steel | Stainless Steel | Steel | Steel | Stainless Steel | Steel | Steel | Aluminum | Steel | Steel | Steel | Stainless Steel | Steel | Stainless Steel | Steel |
| Allowable Torque Range(N•m) | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 | 20.1~50.0 |
| Centering | Provided | Provided | Provided | Provided | - | Provided | None | None | Provided | Provided | Provided | None | None | Provided | Provided | Provided | Provided | Provided | Provided | Provided | - | None | Provided | None | Provided | Provided | Provided | Provided | Provided | Provided |
| Surface Treatment | None | None / Black Oxide / Electroless Nickel Plating | None / Electroless Nickel Plating | None | None / Electroless Nickel Plating | None | None | Anodize | None | None | None | Anodize | None / Black Oxide / Electroless Nickel Plating | None | Electroless Nickel Plating | None | None | Electroless Nickel Plating | Electroless Nickel Plating | None | None | None | Anodize | None | None | None | None | Electroless Nickel Plating | None | None |
| Tightening Structure | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Tapered Sleeve Type | Single Cone Type | Single Cone Type | Single Cone Type | Tapered Sleeve Type | Tapered Sleeve Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Tapered Sleeve Type | Single Cone Type | Single Cone Type | Tapered Sleeve Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type | Single Cone Type |
| Tightening Method | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) | Mechanical Type (Wedge Type) |
| Allowable Torque(N•m) | 28 | 22.5 ～ 50 | 25 ～ 44 | 22 ～ 50 | 22 ～ 50 | 29 ～ 49 | 23 ～ 49 | 27 ～ 33 | 25 ～ 44 | 22 ～ 50 | 25 ～ 48 | 24 ～ 40 | 21 ～ 49 | 29.4 ～ 49 | 22.5 ～ 36.2 | 38 ～ 43 | 24.5 ～ 49 | 22.5 ～ 36.2 | 29.4 ～ 49 | 24.5 ～ 49 | 34 ～ 36 | 26 ～ 49 | 25 ～ 33 | 30 | 47 | 47 ～ 50 | 24.5 ～ 49 | 25 ～ 48 | 38 ～ 43 | 21 ～ 49 |
| Cleaning Method | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Degreasing / Precision Cleaning | Degreasing / Precision Cleaning | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Characteristics/Applications | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Clean washed | Clean washed | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Environmentally friendly | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | RoHS Compliant (10 Substances) | RoHS Compliant (10 Substances) | - | - | - | - | - | - | - | - | - | - | - | - | - |
![[Clean & Pack]MechaLock - Compact](http://content.misumi-ec.com/image/upload/t_product_view_c/v1/p/jp/product/series/110310858959/110310858959_001_20230911105917.jpg?$product_view_c$)
![[Clean & Pack]MechaLock - Standard](http://content.misumi-ec.com/image/upload/t_product_view_c/v1/p/jp/product/series/110310859229/110310859229_001_20230911105917.jpg?$product_view_c$)
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Specification/Dimensions
-
Type
-
Flanged -
Straight -
Nut Tightening -
Thin Wall -
Direct Mounting -
Sleeve
-
-
Shaft Bore Dia. d(Ø)
-
Hub Dia.(Ø)
-
Body Material
- Steel
- Stainless Steel
- Aluminum
-
Allowable Torque Range(N•m)
-
Centering
- Provided
- None
-
Surface Treatment
- None
- Black Oxide
- Electroless Nickel Plating
- Anodize
-
Tightening Structure
-
Tightening Method
-
Allowable Torque(N•m)
-
Cleaning Method
- Degreasing
- Precision Cleaning
-
Characteristics/Applications
- Clean washed
-
Environmentally friendly
- RoHS Compliant (10 Substances)
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