Zoro Homepage
Clipboard Icon Quick Order
Cart Icon 0 Cart
  1. Home
  2. /
  3. Power Transmission
  4. /
  5. Bearings, V-belts & Power Transmission Equipment
  6. /
  7. Couplings, Collars, & Adapters
  8. /
  9. Rigid Clamp Couplings
  10. /
  11. Coupling, 4 Beam Clamp, 3/8in.x 5/16in.
Ruland Coupling, 4 Beam Clamp, 3/8in.x 5/16in. PCR20-6-5-A - main

Coupling, 4 Beam Clamp, 3/8in.x 5/16in.

  • Mfr # PCR20-6-5-A

  • Zoro # G8278785

product price: $66.99
/ea

Key Features

Shaft Locking Type - Couplings
1 Piece Clamp
System of Measurement
Inch
Material - Couplings
Aluminum
Outside Dia.
1.25 in
Overall Length
1 1/2 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
Real support from real people
Contact our U.S. based team

Specifications

Product Information

MFR #
PCR20-6-5-A
Zoro #
G8278785
UPC #
634529032770
Country of Origin
United States

Dimensions

Bore Dia.
3/8 in x 5/16 in
Outside Dia.
1.25 in
Overall Length
1 1/2 in
Length through Bore (mm)
17.02
Outside Dia. (mm)
31.8
Length through Bore
0.67 in
Clearance Dia. (In.)
1.125 in
Clearance Dia. (mm)
28.6
Screw Size (mm)
M4
Overall Length (mm)
38.1
Length through Bore (In.)
0.67
Outside Dia. (In.)
1.250 in
Screw Size
M4
Overall Length (In.)
1.5
Size
PCR20
Bore Diameter 2
5/16 in
Different Bore Sizes
Yes
Length Through Bore 2
0.7 in
Screw Thread Size
M4
Coupling Outside Diameter
1 1/4 in
Bore Diameter 1
3/8 in
Length Through Bore 1
0.7 in

Details

Shaft Locking Type - Couplings
1 Piece Clamp
Item
Motion Control Coupling
System of Measurement
Inch
Material - Couplings
Aluminum
Finish
Bright
Material
Aluminum
Torsional Stiffness (Deg./In.-Lbs.)
0.07
Min. Bore (In.)
0.313 in
Rated Torque
60 in-lb
Max. Angular Misalignment
3 Degrees
Max. Bore (In.)
0.375 in
Style
4-Beam Clamp
Max. Axial Misalignment (In.)
+/-0.01
Torque (In.-Lbs.)
60
Max. Temp. Range (F)
225 Degrees
Item - Motion Control Couplings
Motion Control Coupling
Max. RPM
6,000 RPM
Max. Temp.
225 Degrees F
Screw Type
Cap Screw
Max. Parallel Misalignment (In.)
0.015 in
Standards
Conflict Minerals Compliant, DIN 912 12.9 Screws, REACH Compliant, RoHS Compliant
Application
Light-Duty Power Transmission, Servo Motors to Lead Screws
Bore Tolerance
+0.001/-0.000 in
Screw Material
Alloy Steel
Shaft Locking Type
Clamp On
For Environment
Angular Misalignment, Axial Motion, Parallel Misalignment
Screw Material Finish
Black Oxide
Included Screws
(2) Hex Socket Cap Screw
Number of Beams
4
Maximum Torque
60 in-lb
Dynamic Torque Reversing
15 lb-in
Moment of Inertia
0.034 lb-in sq
Bore Type
Round
Maximum Operating Temperature
225 Degrees F
Parallel Misalignment
0.015 in
Shaft Tolerance
+0.0000/-0.0005 in
Torsional Stiffness
14.29 in-lb/Deg
Angular Misalignment
3 Degrees
Minimum Operating Temperature
-40 Degrees F
Zero Backlash
Yes
Fastener Tightening Torque
4.6 N-m
Coupling Material Finish
Bright
For Misalignment Type
Angular, Axial, Parallel
Series
PCR
Maximum Speed
6,000 RPM
Full Bearing Support Required
Yes
Features
Balanced Design for Reduced Vibration, Higher Torque Capacity, Larger Body Sizes than Single Beam Couplings, Lower Windup, Machined from a Single Piece of Material, Two Sets of Two Spiral Cuts, Zero-Backlash
Dynamic Torque Non-Reversing
30 lb-in
Number of Locking Screws
2
Axial Motion
0.01 in
Coupling Material
Aluminum
Coupling Material Grade
7075

Description

Motion Control Coupling, Angular Misalignment 3 Degrees , Bore Diameter 1 3/8 in, Bore Diameter 2 5/16 in, Coupling Material Aluminum, Coupling Outside Diameter 1 1/4 in, Maximum Speed 6,000 RPM, Maximum Torque 60 in-lb, Axial Motion 0.01 in, Overall Length 1 1/2 in, Parallel Misalignment 0.015 in, System of Measurement Inch, Different Bore Sizes Yes, Torsional Stiffness 14.29 in-lb/Deg, Bore Type Round, Shaft Locking Type Clamp On, Number of Beams 4, Length Through Bore 2 0.7 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.

Explore More Products