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, 8mmx8mm
Ruland Coupling, 4 Beam Clamp, 8mmx8mm PCMR25-8-8-SS - main

Coupling, 4 Beam Clamp, 8mmx8mm

  • Mfr # PCMR25-8-8-SS

  • Zoro # G8372716

product price: $107.99
/ea
Free Shipping & Returns

Key Features

Shaft Locking Type - Couplings
1 Piece Clamp
System of Measurement
Metric
Bore Dia.
8mm x 8mm
Material - Couplings
Stainless Steel
Outside Dia.
25.4 mm
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 #
PCMR25-8-8-SS
Zoro #
G8372716
UPC #
634529048986
Country of Origin
United States

Dimensions

Bore Dia.
8mm x 8mm
Outside Dia.
25.4 mm
Overall Length
31.8 mm
Overall Length (mm)
31.8
Length through Bore
13.84 mm
Length through Bore (In.)
0.545
Length through Bore (mm)
13.84
Clearance Dia. (In.)
1.25 in
Outside Dia. (mm)
25.4 mm
Outside Dia. (In.)
1
Size
PCMR25
Screw Size
M4
Overall Length (In.)
1.25
Screw Size (mm)
M4
Clearance Dia. (mm)
31.8
Length Through Bore 2
14.7 mm
Length Through Bore 1
14.7 mm
Screw Thread Size
M4
Coupling Outside Diameter
25.4 mm
Different Bore Sizes
No
Bore Diameter 1
8 mm
Bore Diameter 2
8 mm

Details

Shaft Locking Type - Couplings
1 Piece Clamp
Item
Motion Control Coupling
System of Measurement
Metric
Material - Couplings
Stainless Steel
Finish
Bright
Max. Temp.
350 Degrees F
Rated Torque
44 in-lb
Material
Stainless Steel
Min. Bore (mm)
8
Max. Parallel Misalignment (In.)
0.015 in
Screw Type
Cap Screw
Max. Bore (mm)
8 mm
Max. Temp. Range (F)
350 Degrees
Item - Motion Control Couplings
Motion Control Coupling
Torsional Stiffness (Deg./In.-Lbs.)
0.094
Style
4-Beam Clamp
Max. RPM
6,000 RPM
Max. Axial Misalignment (In.)
+/-0.01
Max. Angular Misalignment
3 Degrees
Torque (In.-Lbs.)
44
Standards
Conflict Minerals Compliant, DIN 912 12.9 Screws, REACH Compliant, RoHS Compliant
Application
Light-Duty Power Transmission, Servo Motors to Lead Screws
Screw Material
Alloy Steel
Bore Tolerance
+0.025/-0.000 mm
Bore Type
Round
Fastener Tightening Torque
4.6 N-m
For Misalignment Type
Angular, Axial, Parallel
Maximum Torque
4.97 N-m
Maximum Operating Temperature
176 Degrees C
Zero Backlash
Yes
Shaft Locking Type
Clamp On
Series
PCMR
Number of Beams
4
Coupling Material Finish
Bright
Screw Material Finish
Black Oxide
Number of Locking Screws
2
Dynamic Torque Non-Reversing
2.49 N-m
For Environment
Angular Misalignment, Axial Motion, Parallel Misalignment
Parallel Misalignment
0.38 mm
Torsional Stiffness
1.2 N-m/Deg
Dynamic Torque Reversing
1.24 N-m
Shaft Tolerance
+0.000/-0.013 mm
Included Screws
(2) Hex Socket Cap Screw
Angular Misalignment
3 Degrees
Maximum Speed
6,000 RPM
Coupling Material
Stainless Steel
Moment of Inertia
0.000009275 kgf/m sq
Full Bearing Support Required
Yes
Coupling Material Grade
303
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
0.25 mm
Minimum Operating Temperature
-40 Degrees C

Description

Motion Control Coupling, Angular Misalignment 3 Degrees , Bore Diameter 1 8 mm, Bore Diameter 2 8 mm, Coupling Material Stainless Steel, Coupling Outside Diameter 25.4 mm, Maximum Speed 6,000 RPM, Maximum Torque 4.97 N-m, Axial Motion 0.25 mm, Overall Length 31.8 mm, Parallel Misalignment 0.38 mm, System of Measurement Metric, Different Bore Sizes No, Torsional Stiffness 1.2 N-m/Deg, Bore Type Round, Shaft Locking Type Clamp On, Number of Beams 4, Length Through Bore 2 14.7 mm

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