Keyed Clamp Bellows Cplg, Bores 8x8mm, OD 33.3mm, L 42.9mm, Alum MPN:MBCK33-8-8-A

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Brand: RULAND
Part #: MBCK33-8-8-A
UPC: 634529300497
SKU
510-G3407180
Regular Price $215.31 Special Price $153.79

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Keyed Clamp Bellows Cplg, Bores 8x8mm, OD 33.3mm, L 42.9mm, Alum

This high-torque, zero-backlash bellows coupling is designed for responsive systems in industries such as semiconductor, solar, test and measurement, and printing. Its lightweight, low inertia design allows for smooth operation at high speeds of up to 10,000 RPM, while its balanced design reduces vibration. The coupling's four convolution bellows provide high torque and torsional stiffness capabilities, making it ideal for applications with misalignment or high torque requirements. Its keyways prevent slippage on the shaft and increase torque capacity, making it a reliable choice for demanding applications. It's also RoHS and REACH compliant for added peace of mind.

Top product features:

  • High torque zero-backlash coupling
  • Creates a lightweight low inertia coupling
  • Prevents the coupling from slipping on the shaft when over torqued

Top product applications:

  • Semiconductor equipment
  • Solar equipment
  • Test and measurement equipment
Ruland standard length bellows couplings are a high torque zero-backlash coupling commonly found in responsive systems on semiconductor, solar, test and measurement, and printing equipment. This keyed clamp type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. The addition of keyways allows for increased torque capacity and prevents the coupling from slipping on the shaft when over torqued. It has 8mm x 8mm bores, 2mm x 2mm keyways, 33.3mm OD, and 42.9mm length. This coupling has a four convolution bellows for higher torque and torsional stiffness capabilities than equivalent couplings with more convolutions. The bellows are able to flex while remaining rigid under torsional loads allowing for all types of misalignment to be accommodated. This bellows coupling has a balanced design for reduced vibration at high speeds of up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards. It is RoHS and REACH compliant.

Additional Information

  • Country of Origin: US
  • Drop Ship Item: Yes
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 2 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 6.00
  • Package Width: 4.00
  • Package Height: 2.00
  • Package Weight: 0.16
Product info last updated on March 20, 2026 3:37am UTC Category: Bearings, V-belts and Power Transmission Equipment
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