FCR20-5-5-SS

$246.63 ea
Quantity Price (USD)
1 $246.63 ea
10 $147.98 ea
25 $123.32 ea
50 $110.98 ea
100 Request Quote
In stock
Free 2-Day shipping on all Domestic Web Orders
Only 1 left
Ruland FCR20-5-5-SS, 5/16" x 5/16" Six Beam Coupling, Stainless Steel, Clamp Style, 1.250" OD, 1.750" Length

PRODUCT SPECIFICATIONS

Ruland FCR20-5-5-SS is a six beam coupling with 5/16" x 5/16" bores, 1.250" OD, and 1.750" length. It is machined from a single piece of material and features two sets of three spiral cuts. This gives it higher torque capacity, lower windup, and larger body sizes than single or four beam couplings and allows for use in light duty power transmission applications such as coupling a servo motor to a lead screw. FCR20-5-5-SS is zero-backlash and has a balanced design for reduced vibration at high speeds of up to 6,000 RPM. Ruland supplies this spiral coupling with Nypatch® anti-vibration hardware that allows for even seating of the screw, repeated screw installations, prevents galling, and maintains high holding power. All hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. FCR20-5-5-SS is made from 303 stainless steel for increased torque capacity. It is machined from bar stock that is sourced exclusively from North American mills and RoHS2 and REACH compliant. FCR20-5-5-SS is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

Installation Instructions

DownLoad

PRODUCT SPECIFICATIONS

Dimensions

Large Bore B1

0.313 in

Small Bore B2

0.313 in

B1 Shaft Penetration

0.842 in

B2 Shaft Penetration

0.842 in

Outer Diameter OD

1.250 in

Bore Tolerance

+.001 in / -.000 in

Length L

1.750 in

Clearance Diameter C MAX

1.459 in

Fastening Hardware

Cap Screw

M5

Screw Material

Alloy Steel with Nypatch®

Hex Wrench Size

4.0 mm

Screw Finish

Black Oxide

Seating Torque

9.5 Nm

Number of Screws

2 ea

Performance Specifications

Static Torque

142 lb-in

Angular Misalignment

Dynamic Torque Non-Reversing

71 lb-in

Parallel Misalignment

0.015 in

Dynamic Torque Reversing

35.5 lb-in

Axial Motion

0.010 in

Torsional Stiffness

0.017 Deg/lb-in

Maximum Speed

6,000 RPM

Additional Information

Material Specification

Type 303 Austenitic, Non-Magnetic Bar

Temperature

-40°F to 350°F
-40°C to 176°C

Finish Specification

Bright

Country of Origin

USA

Weight (lbs.)

0.7530

UPC

63452904162

CERTIFICATIONS/STANDARDS
ISO 9001:2008

Certified

Conflict Minerals

Compliant

RoHS2

Compliant

REACH

Compliant

CUSTOMER REVIEWS

© 2017 Ruland Manufacturing Co., Inc. All rights reserved