Bellows Couplings

NBK's bellows couplings use metal bellows (corrugated structure) to accommodate eccentricity and angular misalignment.
With zero backlash and excellent rotational uniformity, they are ideal for encoder applications.
All-stainless models are also available, offering superior corrosion resistance.

Recommended by NBK:MBB

View problem solution examples
Shaft radial load must be suppressed 【Automation / robots / motorization】

Image Bellows-Type Flexible Coupling Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type (High Precision Welding)
Part Name Bellows-Type Flexible Coupling Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type Flexible Couplings - Bellows Type (High Precision Welding)
Part Number MBB-C MFB MFBS MFB-C MFBS-C MWBS
Feature Constant Velocity
Zero Backlash
Simple
Constant Velocity
Zero Backlash
Simple
Constant Velocity
Zero Backlash
Simple
Constant Velocity
Zero Backlash
Simple
Constant Velocity
Zero Backlash
Simple
High Precision
Welded Bellows
High Flexibility
Size - Standard Standard Standard Standard Standard
Hub Material Aluminum Alloy Aluminum Alloy All Stainless Steel Aluminum Alloy All Stainless Steel All Stainless Steel
Shaft Fastening Method Clamping Set Screw Set Screw Clamping Clamping Set Screw
Diameter φ19 ~ φ40 φ12 ~ φ32 φ12 ~ φ32 φ12 ~ φ32 φ12 ~ φ32 φ13 ~ φ28
Torque 1.5N・m ~ 10N・m 0.3N・m ~ 2N・m 0.5N・m ~ 3N・m 0.3N・m ~ 2N・m 0.5N・m ~ 3N・m 0.07N・m ~ 0.65N・m
CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List MBB-19C MBB-27C MBB-32C MBB-40C MFB-12 MFB-16 MFB-20 MFB-25 MFB-32 MFBS-12 MFBS-16 MFBS-20 MFBS-25 MFBS-32 MFB-12C MFB-16C MFB-20C MFB-25C MFB-32C MFBS-12C MFBS-16C MFBS-20C MFBS-25C MFBS-32C MWBS-13 MWBS-18 MWBS-22 MWBS-28

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Image Photo Sensor Flange
Part Name Photo Sensor Flange
Part Number MPF
Feature Photo Sensor Flange
CAD CAD
Specifications Specifications
List MPF-32 MPF-40 MPF-50