PCMR19-4-3-A

$56.22 ea
Quantity Price (USD)
1 $56.22 ea
20 $33.73 ea
60 $28.11 ea
100 $25.30 ea
250 Request Quote
In Production Lead Time: 0-2 Days
Ruland PCMR19-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 22.9mm Length

PRODUCT SPECIFICATIONS

Ruland PCMR19-4-3-A is a four beam coupling with 4mm x 3mm bores, 19.1mm OD, and 22.9mm 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. PCMR19-4-3-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. PCMR19-4-3-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. PCMR19-4-3-A is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

PRODUCT SPECIFICATIONS

Dimensions

Large Bore B1

4 mm

Small Bore B2

3 mm

B1 Shaft Penetration

10.7 mm

B2 Shaft Penetration

10.7 mm

Outer Diameter OD

19.1 mm

Bore Tolerance

+.025 mm / -.000 mm

Length L

22.9 mm

Fastening Hardware

Cap Screw

M2.5

Screw Material

Alloy Steel

Hex Wrench Size

2.0 mm

Screw Finish

Black Oxide

Seating Torque

1.21 Nm

Number of Screws

2 ea

Performance Specifications

Static Torque

1.92 Nm

Angular Misalignment

Dynamic Torque Non-Reversing

0.96 Nm

Parallel Misalignment

0.20 mm

Dynamic Torque Reversing

0.48 Nm

Axial Motion

0.13 mm

Torsional Stiffness

2.27 Deg/Nm

Moment of Inertia

0.731 x10-6 kg-m2

Maximum Speed

6,000 RPM

Additional Information

Material Specification

7075-T651 Extruded and Drawn Aluminum Bar

Temperature

-40°F to 225°F
-40°C to 107°C

Finish Specification

Bright

Manufacturer

Ruland Manufacturing

Country of Origin

USA

Weight (lbs.)

0.0590

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.

CERTIFICATIONS/STANDARDS
ISO 9001:2015

Certified

Conflict Minerals

Compliant

RoHS3

Compliant

REACH

Compliant

CUSTOMER REVIEWS

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