Keyed Clamp Bellows Cplg, Bores 20mmx0.500", OD 1.625", L 2.000", Alum

  • Mfr # BCK26-20MM-1/2"-A

  • Zoro # G3427675


product price:  $138.99
/ea
Free Shipping & Returns

Key Features

Bore Dia.
20 mm x 0.500 in
Max. RPM
10000 RPM
Outside Dia.
1.625 in (41.3 mm)
Overall Length
2.000 in (50.8 mm)
Style
Clamp with Keyway
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 #
BCK26-20MM-1/2"-A
Zoro #
G3427675
UPC #
634529292648
Country of Origin
United States

Dimensions

Bore Dia.
20 mm x 0.500 in
Outside Dia.
1.625 in (41.3 mm)
Overall Length
2.000 in (50.8 mm)
Screw Size
M4
Length
2.000 in (50.8 mm)
Fastening Dimensions
Metric

Details

Max. RPM
10000 RPM
Style
Clamp with Keyway
Material
Anodized Aluminum
Max. Temp. Range (F)
-40°F to 200°F (-40°C to 93°C)
Max. Parallel Misalignment (In.)
0.010 in (0.25 mm)
Torsional Stiffness (Deg./In.-Lbs.)
550 lb-in/Deg (63 Nm/Deg)
Max. Angular Misalignment
2.0 deg
Weight
0.2693 lbs
B1 Shaft Penetration
24 mm
Keyway (K1)
6 mm
Screw Seating Torque
4.6 Nm
Axial Motion
0.020 in (0.50 mm)
Keyway (K2)
1/8 in
Static Torque
250 lb-in (28.0 Nm)
Screw Material
Alloy Steel
Dynamic Torque Non-Reversing
125 lb-in (14.00 Nm)
Dynamic Torque Reversing
62.5 lb-in (7.00 Nm)
Screw Finish
Black Oxide
B2 Shaft Penetration
0.946 in
Bore Tolerance
+0.001 in / -0.000 in (+0.03 mm / -0.00 mm)
Measurement Type
Inch/Metric
Number of Screws
2 ea

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 20mm x 0.500" bores, 6mm x 1/8" keyways, 1.625" (41.3mm) OD, and 2.000" (50.8mm) 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.