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, 5/16in.x 1/4in.
Ruland Coupling, 4 Beam Clamp, 5/16in.x 1/4in. PCR18-5-4-SS - main

Coupling, 4 Beam Clamp, 5/16in.x 1/4in.

  • Mfr # PCR18-5-4-SS

  • Zoro # G8421874

product price: $113.99
/ea
Free Shipping & Returns

Key Features

Shaft Locking Type - Couplings
1 Piece Clamp
System of Measurement
Inch
Material - Couplings
Stainless Steel
Outside Dia.
1.125 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 #
PCR18-5-4-SS
Zoro #
G8421874
UPC #
634529049853
Country of Origin
United States

Dimensions

Bore Dia.
5/16 in x 1/4 in
Outside Dia.
1.125 in
Overall Length
1 1/2 in
Outside Dia. (In.)
1.125 in
Outside Dia. (mm)
28.6
Length through Bore (mm)
17.02
Screw Size
M4
Screw Size (mm)
M4
Length through Bore
0.67 in
Size
PCR18
Overall Length (mm)
38.1
Clearance Dia. (In.)
0.875 in
Clearance Dia. (mm)
20.3
Length through Bore (In.)
0.67
Overall Length (In.)
1.5
Different Bore Sizes
Yes
Bore Diameter 1
5/16 in
Length Through Bore 2
0.7 in
Length Through Bore 1
0.7 in
Bore Diameter 2
1/4 in
Coupling Outside Diameter
1 1/8 in
Screw Thread Size
M4

Details

Shaft Locking Type - Couplings
1 Piece Clamp
Item
Motion Control Coupling
System of Measurement
Inch
Material - Couplings
Stainless Steel
Finish
Bright
Max. Bore (In.)
0.313 in
Screw Type
Cap Screw
Torque (In.-Lbs.)
60
Material
Stainless Steel
Item - Motion Control Couplings
Motion Control Coupling
Max. Angular Misalignment
3 Degrees
Rated Torque
60 in-lb
Max. RPM
6,000 RPM
Style
4-Beam Clamp
Max. Axial Misalignment (In.)
+/-0.01
Torsional Stiffness (Deg./In.-Lbs.)
0.056
Max. Temp.
350 Degrees F
Max. Parallel Misalignment (In.)
0.015 in
Max. Temp. Range (F)
350 Degrees
Min. Bore (In.)
0.25 in
Application
Light-Duty Power Transmission, Servo Motors to Lead Screws
Standards
Conflict Minerals Compliant, DIN 912 12.9 Screws, REACH Compliant, RoHS Compliant
Screw Material
Alloy Steel
Bore Tolerance
+0.001/-0.000 in
For Misalignment Type
Angular, Axial, Parallel
Number of Locking Screws
2
Shaft Tolerance
+0.0000/-0.0005 in
Fastener Tightening Torque
4.6 N-m
Bore Type
Round
Maximum Operating Temperature
350 Degrees F
Angular Misalignment
3 Degrees
Number of Beams
4
Minimum Operating Temperature
-40 Degrees F
For Environment
Angular Misalignment, Axial Motion, Parallel Misalignment
Maximum Torque
60 in-lb
Screw Material Finish
Black Oxide
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
Axial Motion
0.01 in
Maximum Speed
6,000 RPM
Included Screws
(2) Hex Socket Cap Screw
Dynamic Torque Reversing
15 lb-in
Torsional Stiffness
17.86 in-lb/Deg
Series
PCR
Zero Backlash
Yes
Parallel Misalignment
0.015 in
Coupling Material Grade
303
Shaft Locking Type
Clamp On
Full Bearing Support Required
Yes
Moment of Inertia
0.0603 lb-in sq
Dynamic Torque Non-Reversing
30 lb-in
Coupling Material
Stainless Steel
Coupling Material Finish
Bright

Description

Motion Control Coupling, Angular Misalignment 3 Degrees , Bore Diameter 1 5/16 in, Bore Diameter 2 1/4 in, Coupling Material Stainless Steel, Coupling Outside Diameter 1 1/8 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 17.86 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