Clamp Bellows Cplg, Bores 0.500"x12mm, OD 1.313", L 1.688", Aluminum MPN:BC21-1/2"-12MM-A

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Brand: RULAND
Part #: BC21-1/2"-12MM-A
UPC: 634529232965
SKU
510-G3422766
Regular Price $165.61 Special Price $118.29

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Clamp Bellows Cplg, Bores 0.500"x12mm, OD 1.313", L 1.688", Aluminum

This high-torque zero-backlash coupling is designed for responsive systems in demanding industries such as semiconductor, solar, test and measurement, and printing equipment. Its clamp type bellows coupling features anodized aluminum hubs and a stainless steel bellows, providing a lightweight low-inertia design that can accommodate all types of misalignment. With a balanced design and ability to flex under torsional loads, it reduces vibration at high speeds up to 10,000 RPM. Ideal for applications requiring high torque and torsional stiffness, this coupling is suitable for use in a variety of applications including robotic arms, CNC machines, and precision machinery.

Top product features:

  • High torque zero-backlash capability
  • Four convolution bellows design for higher torque and torsional stiffness
  • Balanced design for reduced vibration at high speeds

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 clamp type bellows coupling consists of two anodized aluminum hubs and a stainless steel bellows creating a lightweight low inertia coupling. It has 0.500" x 12mm bores, 1.313" (33.3mm) OD, and 1.688" (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: 0.15
Product info last updated on February 3, 2026 5:19pm UTC Category: Bearings, V-belts and Power Transmission Equipment
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In stock