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  11. Coupling, Bellows Clamp, 1/2in.x 5/16in.
Ruland Coupling, Bellows Clamp, 1/2in.x 5/16in. BC21-8-5-A - main

Coupling, Bellows Clamp, 1/2in.x 5/16in.

  • Mfr # BC21-8-5-A

  • Zoro # G8211892

product price: $102.99
/ea
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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
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Specifications

Product Information

MFR #
BC21-8-5-A
Zoro #
G8211892
UPC #
634529062784
Country of Origin
United States

Dimensions

Bore Dia.
1/2 in x 5/16 in
Outside Dia.
1.313 in
Overall Length
1.7 in
Clearance Dia. (In.)
1.313 in
Outside Dia. (mm)
33.3
Size
BC21
Clearance Dia. (mm)
33.3
Screw Size
M3
Screw Size (mm)
M3
Overall Length (In.)
1.623
Length through Bore
0.811 in
Length through Bore (In.)
0.811
Overall Length (mm)
41.00
Outside Dia. (In.)
1.313
Length through Bore (mm)
20.5
Screw Thread Size
M3
Clearance Diameter
1.31 in
Bore Diameter 2
5/16 in
Different Bore Sizes
Yes
Maximum Bore Diameter
1/2 in
Length Through Bore 1
0.8 in
Hub Length
0.59 in
Coupling Outside Diameter
1.31 in
Bore Diameter 1
1/2 in
Length Through Bore 2
0.8 in
Minimum Bore Diameter
5/16 in

Details

Shaft Locking Type - Couplings
1 Piece Clamp
Item
Motion Control Coupling
System of Measurement
Inch
Material - Couplings
Aluminum
Finish
Black Anodized
Max. Axial Misalignment (In.)
+/-0.016
Max. RPM
10,000 RPM
Item - Motion Control Couplings
Motion Control Coupling
Max. Temp. Range (F)
200 Degrees
Material
Aluminum
Torsional Stiffness (Deg./In.-Lbs.)
400
Torque (In.-Lbs.)
120
Max. Angular Misalignment
1.5 Degrees
Max. Temp.
200 Degrees F
Max. Parallel Misalignment (In.)
0.006 in
Screw Type
Cap Screw
Style
Bellows Clamp
Max. Bore (In.)
0.5 in
Rated Torque
120 in-lb
Min. Bore (In.)
0.313 in
Standards
Conflict Minerals Compliant, DIN 912 12.9 Screws, ISO 9001:2015, REACH Compliant, RoHS3 Compliant
Application
Encoders, Stepper / Servo
Bore Tolerance
+0.001 in / -0.000 in
Screw Material
Alloy Steel
Full Bearing Support Required
Yes
Hub Material Finish
Sulfuric Anodized MIL-A-8625 Type II; Class 2 and ASTM B580 Type B Black Anodize
Bellows Material
Stainless Steel
Included Screws
(2) Hex Socket Cap Screw
Hub Material
Aluminum
Axial Motion
0.016 in
Shaft Tolerance
+0.0000 in / -0.0005 in
Bellows Material Grade
MIL-A-8625 Type II; Class 2 and ASTM B580 Type B
Dynamic Torque Reversing
30 lb-in
Maximum Operating Temperature
200 Degrees F
Bellows Material Finish
None
Moment of Inertia
0.037157 lb-in sq
Angular Misalignment
1.5 Degrees
Screw Material Finish
Black Oxide
Minimum Operating Temperature
-40 Degrees F
Dynamic Torque Non-Reversing
60 lb-in
Shaft Locking Type
Clamp On
Zero Backlash
Yes
Torsional Stiffness
400 in-lb/Deg
Features
Balanced Design for Reduced Vibration, Lightweight and has Low Inertia, Zero Backlash
Number of Locking Screws
2
Maximum Torque
120 in-lb
Fastener Tightening Torque
18.6 in-lb
Parallel Misalignment
0.006 in
Bore Type
Round
For Misalignment Type
Angular, Axial, Parallel
Hub Material Grade
2024
Maximum Speed
10,000 RPM

Description

Motion Control Coupling, Bore Diameter 1 1/2 in, Bore Diameter 2 5/16 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 Yes, 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

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