Zoro Homepage
Clipboard Icon Quick Order Cart Icon 0 Cart

Coupling, Bellows Clamp, 1/2in.x 1/2in.

  • Mfr # BC21-8-8-A

  • Zoro # G8031134


product price: $135.99
/ea
Free Shipping & Returns

Key Features

Shaft Locking Type - Couplings
1 Piece Clamp
System of Measurement
Inch
Material - Couplings
Aluminum
Outside Dia.
1.313 in
Overall Length
1.7 in
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 #
BC21-8-8-A
Zoro #
G8031134
UPC #
634529062807
Country of Origin
United States

Dimensions

Bore Dia.
1/2 in x 1/2 in
Outside Dia.
1.313 in
Overall Length
1.7 in
Clearance Dia. (In.)
1.313 in
Outside Dia. (In.)
1.313
Length through Bore
0.811 in
Outside Dia. (mm)
33.3
Overall Length (In.)
1.623
Screw Size
M3
Size
BC21
Length through Bore (mm)
20.5
Clearance Dia. (mm)
33.3
Screw Size (mm)
M3
Overall Length (mm)
41.00
Length through Bore (In.)
0.811
Maximum Bore Diameter
1/2 in
Different Bore Sizes
No
Bore Diameter 1
1/2 in
Minimum Bore Diameter
1/2 in
Length Through Bore 2
0.8 in
Clearance Diameter
1.31 in
Bore Diameter 2
1/2 in
Hub Length
0.59 in
Length Through Bore 1
0.8 in
Coupling Outside Diameter
1.31 in
Screw Thread Size
M3

Details

Shaft Locking Type - Couplings
1 Piece Clamp
Item
Motion Control Coupling
System of Measurement
Inch
Material - Couplings
Aluminum
Finish
Black Anodized
Torque (In.-Lbs.)
120
Max. Temp. Range (F)
200 Degrees
Max. Axial Misalignment (In.)
+/-0.016
Rated Torque
120 in-lb
Max. Bore (In.)
0.5 in
Torsional Stiffness (Deg./In.-Lbs.)
400
Style
Bellows Clamp
Min. Bore (In.)
0.5 in
Max. Angular Misalignment
1.5 Degrees
Material
Aluminum
Item - Motion Control Couplings
Motion Control Coupling
Max. Parallel Misalignment (In.)
0.006 in
Screw Type
Cap Screw
Max. RPM
10,000 RPM
Max. Temp.
200 Degrees F
Application
Encoders, Stepper / Servo
Standards
Conflict Minerals Compliant, DIN 912 12.9 Screws, ISO 9001:2015, REACH Compliant, RoHS3 Compliant
Bore Tolerance
+0.001 in / -0.000 in
Screw Material
Alloy Steel
Hub Material
Aluminum
Dynamic Torque Reversing
30 lb-in
Minimum Operating Temperature
-40 Degrees F
Angular Misalignment
1.5 Degrees
Bellows Material Finish
None
Screw Material Finish
Black Oxide
Shaft Locking Type
Clamp On
Maximum Torque
120 in-lb
Axial Motion
0.016 in
Maximum Operating Temperature
200 Degrees F
Hub Material Grade
2024
Torsional Stiffness
400 in-lb/Deg
Moment of Inertia
0.036873 lb-in sq
Maximum Speed
10,000 RPM
For Misalignment Type
Angular, Axial, Parallel
Bellows Material
Stainless Steel
Zero Backlash
Yes
Included Screws
(2) Hex Socket Cap Screw
Hub Material Finish
Sulfuric Anodized MIL-A-8625 Type II; Class 2 and ASTM B580 Type B Black Anodize
Dynamic Torque Non-Reversing
60 lb-in
Full Bearing Support Required
Yes
Features
Balanced Design for Reduced Vibration, Lightweight and has Low Inertia, Zero Backlash
Bellows Material Grade
MIL-A-8625 Type II; Class 2 and ASTM B580 Type B
Bore Type
Round
Shaft Tolerance
+0.0000 in / -0.0005 in
Fastener Tightening Torque
18.6 in-lb
Number of Locking Screws
2
Parallel Misalignment
0.006 in

Description

Motion Control Coupling, Bore Diameter 1 1/2 in, Bore Diameter 2 1/2 in, Coupling Outside Diameter 1.31 in, Maximum Speed 10,000 RPM, Maximum Torque 120 in-lb, Hub Material Aluminum, Overall Length 1.7 in, Shaft Locking Type Clamp On, System of Measurement Inch, Clearance Diameter 1.31 in, Bellows Material Stainless Steel, Different Bore Sizes No, Length Through Bore 1 0.8 in, Length Through Bore 2 0.8 in, Parallel Misalignment 0.006 in, Bore Type Round, Dynamic Torque Non-Reversing 60 lb-in

Restrictions

WARNING: Cancer and Reproductive Harm For more information go to www.P65Warnings.ca.gov

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.