Keyed Clamp Bellows Cplg, Bores 0.375"x0.375", OD 1.313", L 1.688", Alum

  • Mfr # BCK21-6-6-A

  • Zoro # G3420079


product price:  $120.99
/ea
Free Shipping & Returns

Key Features

Bore Dia.
0.375 in x 0.375 in
Max. RPM
10000 RPM
Outside Dia.
1.313 in
Overall Length
1.688 in
Torsional Stiffness (Deg./In.-Lbs.)
400 lb-in/Deg
See all product information
Get a 10% off coupon
Free 30-day returns
Return Policy
Get 30 days to pay with Net 30
Apply Now
Unlock tax-exempt savings
Add Tax Exemption

Specifications

Product Information

MFR #
BCK21-6-6-A
Zoro #
G3420079
UPC #
634529291856
Country of Origin
United States

Dimensions

Bore Dia.
0.375 in x 0.375 in
Outside Dia.
1.313 in
Overall Length
1.688 in
Screw Size
M3
Length
1.688 in
Fastening Dimensions
Metric

Details

Max. RPM
10000 RPM
Torsional Stiffness (Deg./In.-Lbs.)
400 lb-in/Deg
Material
Anodized Aluminum
Max. Parallel Misalignment (In.)
0.006 in
Max. Angular Misalignment
1.5 deg
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Style
Clamp with Keyway
Weight
0.1555 lbs
Screw Material
Alloy Steel
B1 Shaft Penetration
0.804 in
Number of Screws
2 ea
Axial Motion
0.016 in
Measurement Type
Inch
Bore Tolerance
+0.001 in / -0.000 in
Dynamic Torque Reversing
30 lb-in
Keyway (K1)
3/32 in
Keyway (K2)
3/32 in
Screw Finish
Black Oxide
Recommended Shaft Tolerance
+0.000 mm / -0.013 mm
Dynamic Torque Non-Reversing
60 lb-in
Screw Seating Torque
2.1 Nm
Static Torque
120 lb-in
B2 Shaft Penetration
0.804 in

Description

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 0.375" x 0.375" bores, 3/32" x 3/32" keyways, 1.313" OD, and 1.688" 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.

Ratings & Reviews

3 Reasons You Can Count On Us

  • Supplies for every job.

    Supplies for every job.

    10 million items and the exact one you need.

  • When you need it fast, count on Zoro!

    When you need it fast, count on Zoro!

    2 million products ship in 1 day.

  • Stretch your budget further.

    Stretch your budget further.

    Everyday low prices on the brands you love.