Power Transmission

Pacific International Bearing Products offers a complete selection of power transmission components designed to connect, locate, and control rotating shafts in motion-control and general industrial equipment. This category includes shaft couplings, shaft collars, and related hardware that provide precise torque transfer, accurate shaft positioning, and reliable axial retention for new designs and MRO applications. Show details

Filters

Show all items

Brand

Ruland (10207)

Note

Stainless steel hubs are available upon request. (3362)

Keyway

No (5134)

Yes (2672)

Joint Outer Diameter (OD)

0.620 in (2)

0.745 in (4)

0.995 in (4)

1.245 in (4)

1.495 in (4)

1.995 in (4)

2.495 in (4)

Max Operating Angle

45 (26)

Yoke Length (LY)

1.125 in (2)

1.344 in (4)

1.688 in (4)

1.875 in (4)

2.125 in (4)

2.750 in (4)

3.500 in (4)

Hub Depth (LH)

0.820 in (2)

0.950 in (4)

1.190 in (4)

1.250 in (4)

1.400 in (4)

1.700 in (4)

2.090 in (4)

Screw Material

Alloy Steel (8004)

Alloy Steel with Nypatch (12)

Stainless Steel (10)

18-8 300 Series Stainless Steel (847)

18-8 300 Series Stainless Steel with Nypatch (12)

316 Stainless Steel (83)

Screw Finish

Black Oxide (7990)

Bright (942)

Zinc Plated (36)

Recommended Lubricant

LUBRIPLATE No. 1200-2 (26)

Matching Boot Cover

UBOOT10/15-NI-KIT (2)

UBOOT12/19-NI-KIT (4)

UBOOT16/25-NI-KIT (4)

UBOOT20/32-NI-KIT (4)

UBOOT24/38-NI-KIT (4)

UBOOT32/51-NI-KIT (4)

UBOOT40/64-NI-KIT (4)

ISO 9001:2015

Certified (8942)

Yes (26)

REACH

Compliant (8942)

Yes (26)

RoHS3

Compliant (8942)

Yes (26)

Conflict Minerals

Compliant (8968)

Tariff Code

8483.60.4000 (26)

8483.60.8000 (8942)

Product Group

Bellows Coupling - Extended Length (305)

Bellows Coupling Standard Length (2156)

F-Series Six Beam Coupling (574)

P-Series 4 Beam Couplings Clamp (526)

P-Series 4 Beam Couplings Set Screw (524)

Universal Joints - Clamp Style (26)

4 Beam Couplings Clamp (170)

4 Beam Couplings Set Screw (163)

FREQUENTLY ASKED QUESTIONS

What types of power transmission components are included in this category?

This category consolidates rigid shaft couplings, a full family of Ruland servo couplings (beam, bellows, disc, jaw, Oldham, slit, and rigid), precision shaft collars, and clamp-style universal joints. Together, these components cover shaft connection, misalignment compensation, axial retention, and angular power transmission needs

How do I choose between a rigid coupling and a servo (flexible) coupling?

Rigid couplings create a solid, zero-backlash connection and are best where shafts can be accurately aligned and where maximum torsional stiffness is required.Servo couplings also transmit torque with zero backlash but incorporate flex elements (beams, discs, bellows, elastomer inserts, or sliders) to accommodate angular, axial, and parallel misalignment, reducing bearing loads and improving system life in servo and stepper applications.

What bore sizes and materials are available?

Depending on product family, available bores range from small servo coupling sizes (down to roughly 3/32″ or 3 mm) up to large shaft collars at 6″ and 150 mm.Standard materials include aluminum, 1215 lead-free steel, and 303/316 stainless steel, with engineered plastic options for certain shaft collar styles.

Are these components suitable for high-precision motion control systems?

Yes. Ruland servo couplings and many rigid couplings are specifically engineered for servo and stepper motor use, offering balanced, zero-backlash designs with high torsional stiffness and well-defined misalignment ratings to maintain positioning accuracy at speed.These products are widely used in robotics, automation, medical devices, and other high-tech applications.

Are the power transmission components RoHS3 and REACH compliant?

Most Ruland couplings and shaft collars offered through Pacific International Bearing are specified as RoHS3 and REACH compliant in their category descriptions, making them suitable for use in regulated markets. Compliance information is listed on each product page, so engineers should verify individual parts to meet project documentation requirements.

Can PIB help me select the right coupling or collar for my application?

Yes. In addition to the online catalog, Pacific International Bearing provides engineering support and custom design services to help match torque, misalignment, space, and environmental requirements with the correct power transmission components.You can contact us at [email protected]

Power Transmission

PSR6-1.5-1.5-A

$44.02 / each

PSR6-1.5-1.5-SS

$117.86 / each

PSR8-1.5-1.5-SS

$120.14 / each

PSR8-1.5-1.5-A

$42.05 / each

PCR6-1.5-1.5-SS

$128.78 / each

PCR8-1.5-1.5-A

$50.22 / each

PCR8-1.5-1.5-SS

$131.25 / each

PCR6-1.5-1.5-A

$56.24 / each

PSR8-1/8"-3MM-SS

$120.14 / each

PSR8-1/8"-3MM-A

$42.05 / each

MWC15-1/8"-1/8"-A

$49.40 / each

MWC15-1/8"-1/8"-SS

$117.71 / each

FREQUENTLY ASKED QUESTIONS

Filters

Brand

Note

Length (L)

O.D. (D)

Material

Bore (B1)

Bore (B2)

Keyway

B1 Max Shaft Penetration

B2 Max Shaft Penetration

Rated Torque

Bore Tolerance

Joint Outer Diameter (OD)

Max Operating Angle

Yoke Length (LY)

Hub Depth (LH)

Screw Material

Screw Finish

Forged Clamp Screw

Recommended Lubricant

Matching Boot Cover

ISO 9001:2015

REACH

RoHS3

Conflict Minerals

Tariff Code

Product Group

Keyway (K1)

Keyway (K2)

Width (W)

Bore (B1)

Bore (B2)

O.D. (D)

Brand

Product

Files

Price

PSR6-1.5-1.5-A

$44.02 / each

PSR6-1.5-1.5-SS

$117.86 / each

PSR8-1.5-1.5-SS

$120.14 / each

PSR8-1.5-1.5-A

$42.05 / each

PCR6-1.5-1.5-SS

$128.78 / each

PCR8-1.5-1.5-A

$50.22 / each

PCR8-1.5-1.5-SS

$131.25 / each

PCR6-1.5-1.5-A

$56.24 / each

PSR8-1/8"-3MM-SS

$120.14 / each

PSR8-1/8"-3MM-A

$42.05 / each

MWC15-1/8"-1/8"-A

$49.40 / each

MWC15-1/8"-1/8"-SS

$117.71 / each

FREQUENTLY ASKED QUESTIONS

Product Added to Cart and Back Orders

Product Added to Back Orders

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