SMC & SSC Series Bellows Couplings

MW Component's SMC Flexible Shaft Couplings meet rigorous requirements of precision positioning and motion control instrumentation. SMC flexible shaft couplings use Electrodeposited Bellows Technology to ensure precise measurements and tolerances with an all-metal construction. Bellows couplings have zero backlash, torque ranges from 3.7 Ncm to 2471.8 Ncm, low elastic windup, zero cyclic speed variation, low side thrust, and low movement of inertia.

SMC (adhesive assembly) and SSC (soldered assembly) bellows couplings can be used in applications that require angular misalignment or parallel misalignment. The bellows technology offers the greatest combined misalignment value of any coupling on the market, resulting in simple installation.

Availability

Custom Yes Request a Quote
Stock & Standard Yes View SMC & SSC Series Bellows Couplings
SSC 400 Series with Soldered Clamp Ends

Custom Manufacturing

Custom Bellows Couplings

Custom bellows couplings offer many benefits including, choice of material composition, simplification of assembly, and customizable attachments and tolerances suited to your specific end-use.

MW specializes in custom component manufacturing, providing you with the right features to ensure proper performance. Whether you need to eliminate endplay or spring, ensure zero backlash, need to increase torsional stiffness, or reduce windup, we can create the right custom coupling for your specialized need made to your exact specifications.

Send us your specs or configure a part.

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Flexible bellows couplings

Bellows Coupling Manufacturing & Configurations

Manufacturing

SMC (adhesive assembly) or SSC (soldered assembly) couplings can be installed in two common configurations. Two set-screw at 120 degrees apart can connect directly to customer instrumentation or an integral clamping hub can also be chosen from our standard product line. Our standard end pieces are manufactured from high-strength aluminum to ensure operation in robust applications. Bore sizes are available from 2mm up to 25.4 mm (1 inch).

MW Components produces a variety of standard and custom couplings from bellows couplings to Helical beam couplings. To view a side-by-side comparison of all the standard couplings we offer, review our Couplings Comparison Guide below.

Standard Coupling Comparison Guide
Coupling technology comparison

Bellows Coupling Configurations

SMC Series

Description: Ideal for light industrial positioning applications (connecting to encoders, stepper motors, XY plots, etc.)

Typical Applications:

• Encoders
• Servos
• Actuators
• Robotics
• CNC Machine Tools
• Other motion control instruments

Misalignment Compensation:

• 1-18° angular
• .030-1.14mm parallel offset
• .66-6.1mm axial motion

Torque Range: 3.7-2471.8 Ncm

Standard Bore Diameters: 0.079-1.0 in (2-25.4 mm)

Attachment Options: Clamp or set screw

Operating Temperatures: Up to 120°C

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SMC 400 Series Adhesive Clamp Ends

SSC Series

Description: Ideal for light industrial positioning applications (connecting to encoders, stepper motors, XY plots, etc.) Hubs are
soldered on.

Typical Applications:

• Encoders
• Servos
• Actuators
• Robotics
• CNC Machine Tools
• Other motion control instruments

Misalignment Compensation:

• 1-18° angular
• .030-1.14mm parallel offset
• .66-6.1mm axial motion

Torque Range: 3.7-2471.8 Ncm

Standard Bore Diameters: 0.079-1.0 in (2-25.4 mm)

Attachment Options: Clamp or set screw

Operating Temperatures: Up to 176°C

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SMC 400 Series with Adhesive Clamp Ends

SMC Flexible Shaft Coupling – Set Screw Hub Design

Please review the list of our standard SMC Flexible Shaft Couplings. For more information on an individual product, click the coupling size for more product specifications such as alignment, windup, side thrust, stroke, and dimensions.

Part Number Outside Diameter (mm) Overall Length (OAL) (mm) Rated Torque (in-oz)
SMC - 301 6.35 31.57 2
SMC - 302 6.35 22.17 5
SMC - 303 6.35 13.72 7
SMC - 304 6.35 12.19 9
SMC - 305 9.52 26.29 7
SMC - 306 9.52 21.46 9
SMC - 307 9.52 16.89 14
SMC - 308 9.52 15.24 18
SMC - 309 12.70 27.61 33
SMC - 310 12.70 21.26 50
SMC - 311 12.70 18.21 65
SMC - 312 19.05 33.71 105
SMC - 313 19.05 27.36 140
SMC - 314 19.05 22.53 188
SMC - 315 25.40 41.22 152
SMC - 316 25.40 28.52 280
SMC - 331 6.35 23.37 4
SMC - 332 6.35 16.89 7
SMC - 333 6.35 13.72 11
SMC - 334 6.35 12.19 9
SMC - 335 9.52 26.29 11
SMC - 336 9.52 21.46 14
SMC - 337 9.52 16.89 21
SMC - 338 9.52 14.43 26
SMC - 339 12.70 27.61 49
SMC - 340 12.70 21.26 75
SMC - 341 12.70 18.21 97
SMC - 342 19.05 33.71 158
SMC - 343 19.05 27.36 210
SMC - 344 19.05 21.51 281
SMC - 345 25.40 41.22 227
SMC - 346 25.40 28.52 420
SMC - 360 36.32 38.35 1500
SMC - 370 50.80 54.91 2500
SMC - 380 60.96 40.64 4000

SMC Flexible Shaft Coupling – Integral Clamping Hub

Please review the list of our standard SMC Flexible Shaft Couplings. For more information on an individual product, click the coupling size for more product specifications such as alignment, windup, side thrust, stroke, and dimensions.

Part Number Outside Diameter (mm) Overall Length (OAL) (mm) Rated Torque (in-oz)
SMC - 401 6.35 31.57 2
SMC - 402 6.35 22.17 5
SMC - 403 6.35 18.99 7
SMC - 404 6.35 17.47 9
SMC - 405 9.52 32.48 7
SMC - 406 9.52 27.66 9
SMC - 407 9.52 23.08 14
SMC - 408 9.52 21.43 18
SMC - 409 12.7 34.11 33
SMC - 410 12.7 27.76 50
SMC - 411 12.7 24.71 65
SMC - 412 19.05 41.57 105
SMC - 413 19.05 35.22 140
SMC - 414 19.05 30.4 188
SMC - 415 25.4 47.92 152
SMC - 416 25.4 35.22 280
SMC - 431 6.35 28.65 4
SMC - 432 6.35 22.17 7
SMC - 433 6.35 18.99 11
SMC - 434 6.35 17.47 9
SMC - 435 9.52 32.48 11
SMC - 436 9.52 27.66 14
SMC - 437 9.52 23.08 21
SMC - 438 9.52 20.62 26
SMC - 439 12.7 34.11 49
SMC - 440 12.7 27.76 75
SMC - 441 12.7 24.71 97
SMC - 442 19.05 41.57 158
SMC - 443 19.05 35.23 210
SMC - 444 19.05 29.38 281
SMC - 445 25.4 47.92 227
SMC - 446 25.4 35.22 420
SMC - 460 36.32 46.99 1500
SMC - 470 50.8 62.02 2500
SMC - 480 60.96 50.74 4000

Request a Sample

Want to see a sample of one of our bellows coupling products for yourself? Click the link below to fill out a sample request with our Servometer location.

Need a Large Order?

We can design and manufacture a component for your specific application in any quantity. For quantities over 1,000, please request a quote.

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