PCR18-6-5-A
$78.83
ea
Ruland PCR18-6-5-A, 3/8" x 5/16" Four Beam Coupling, Aluminum, Clamp Style, 1.125" OD, 1.500" Length
PRODUCT SPECIFICATIONS
Ruland PCR18-6-5-A is a four beam coupling with 3/8" x 5/16" bores, 1.125" OD, and 1.500" length. It is machined from a single piece of material and feature two sets of two spiral cuts. This gives it higher torque capacity, lower windup, and larger body sizes than single beam couplings. PCR18-6-5-A is well suited for applications such as encoders that require high positioning accuracy. This four beam spiral coupling is zero-backlash and has a balanced design for reduced vibration at high speeds of up to 6,000 RPM. All hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. PCR18-6-5-A is made from 7075 aluminum for lightweight and low inertia. It is machined from bar stock that is sourced exclusively from North American mills and is RoHS2 and REACH compliant. PCR18-6-5-A is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.
PRODUCT SPECIFICATIONS
| Dimensions | |||
|---|---|---|---|
Large Bore B1 |
0.375 in |
Small Bore B2 |
0.313 in |
B1 Shaft Penetration |
0.695 in |
B2 Shaft Penetration |
0.695 in |
Outer Diameter OD |
1.125 in |
Bore Tolerance |
+.001 in / -.000 in |
Length L |
1.500 in |
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| Fastening Hardware | |||
Cap Screw |
M4 |
Screw Material |
Alloy Steel |
Hex Wrench Size |
3.0 mm |
Screw Finish |
Black Oxide |
Seating Torque |
4.6 Nm |
Number of Screws |
2 ea |
| Performance Specifications | |||
Static Torque |
40 lb-in |
Angular Misalignment |
3° |
Dynamic Torque Non-Reversing |
20 lb-in |
Parallel Misalignment |
0.015 in |
Dynamic Torque Reversing |
10 lb-in |
Axial Motion |
0.010 in |
Torsional Stiffness |
0.140 Deg/lb-in |
Moment of Inertia |
0.0217 lb-in2 |
Maximum Speed |
6,000 RPM |
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| Additional Information | |||
Material Specification |
7075-T651 Extruded and Drawn Aluminum Bar |
Temperature |
-40°F to 225°F |
Finish Specification |
Bright |
Manufacturer |
Ruland Manufacturing |
Country of Origin |
USA |
Weight (lbs.) |
0.1970 |
| Product Notes | |||
Note 1 |
Torque ratings are at maximum misalignment. |
Note 2 |
Performance ratings are for guidance only. The user must determine suitability for a particular application. |
Note 3 |
Torque ratings for the couplings are based on the physical limitations/failure point of the machined beams. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the machined beams. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the machined beams. Please consult technical support for more assistance. |
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