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Mountable shaft collars with face holes are designed to mate directly with components such as sprockets, pulleys, and metallic plates. Ruland manufactures them with drilled holes for mounting flexibility or threaded holes for the most secure connection between the collar and mated component. They are offered in steel, aluminum, and 303 stainless steel in bore sizes ranging from 3/8” to 2” and 10mm to 50mm.
Explore More >> Clamp style universal joints improve over set screw style because they do not mar the shaft, offer infinite adjustability, and can be used on all shaft types. Ruland is the only North American supplier of clamp style universal joints and manufactures the clamp feature, bores, and keyways in our advanced manufacturing facility in Marlborough, MA USA. They are available in sizes from 1/4" to 1 1/4” in steel for high strength and stainless steel for corrosion resistance.
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| Dimensions | |||
|---|---|---|---|
|
Bore (B1) Larger inner diameter. Should match nominal shaft diameter. |
1.1250 in |
Small Bore (B2) Smaller inner diameter. Should match nominal shaft diameter. |
1.0000 in |
|
Keyway (K1) |
1/4 in |
Keyway (K2) |
1/4 in |
|
B1 Max Shaft Penetration The maximum depth the shaft can penetrate into Bore B1. |
1.562 in |
B2 Max Shaft Penetration The maximum depth the shaft can penetrate into Bore B2. |
1.562 in |
|
Outer Diameter (OD) |
1 7/8 in |
Bore Tolerance Variance in finished bore range before installation. |
+0.0020 in / +0.0005 in |
|
Length (L) |
3 1/8 in |
Clearance Diameter (C) MAX Minimum diameter required to avoid interference with hardware. |
2.182 in |
|
Recommended Gap The recommended gap between halves to maintain during installation. See installation instructions for more information. |
0.094 in |
Recommended Shaft Tolerance Acceptable variance in nominal shaft diameter before performance loss. |
+0.0000 in / -0.0005 in |
| Fastening Hardware | |||
|
Forged Clamp Screw Inch or metric socket head cap screw size. |
1/4-28 |
Screw Material |
Alloy Steel with Nypatch® |
|
Hex Wrench Size Wrench size that fits the screw head to tighten or loosen the screw. |
3/16 in |
Screw Finish Surface finish and treatments on supplied hardware. |
Black Oxide |
|
Seating Torque Torque required to install supplied hardware. Use torque wrench for accurate seating torque. |
170 lb-in |
Screw Location (R) |
0.748 in |
|
Number of Screws |
8 ea |
||
| Performance Specifications | |||
|
Rated Torque Keyed Rigids have an increased torque capability beyond the Rated Torque. The max torque becomes based on the physical limitations of the key that is used. |
4400 in-lb |
Moment of Inertia |
0.8816 lb-in2 |
|
Maximum Speed |
4,000 RPM |
Full Bearing Support Required? Full bearing support is a bearing in close proximity to both sides of the coupling to prevent axial loads that could result in rapid coupling failure. |
No |
|
Nypatch® Anti-Vibration Hardware? This proprietary coating allows for repeated installations, prevents screws from coming loose during operation, and provides the necessary dissimilar material in stainless steel couplings to reduce galling. |
Yes |
Zero-Backlash? Zero-backlash ensures there is no loss of motion during operation. |
Yes |
|
Balanced Design The balanced design allows for reduced vibration at high RPMs. |
Yes |
||
| Additional Information | |||
|
Material Specification |
1215 Carbon Steel Bar |
Temperature Minimum and maximum operating temperature. Operating temperature includes ambient temperature plus or minus factors such as system heat generated during operation, washdown, vacuum, etc... |
-40°F to 350°F (-40°C to 176°C) |
Hot Process Black Oxide, Impregnated with Naphthenic Oil, Centrifugally Dried |
Manufacturer |
Ruland Manufacturing |
|
|
Country of Origin |
USA |
Weight (lbs) |
1.503700 |
|
UPC |
634529022566 |
Tariff Code |
8483.60.8000 |
|
UNSPC Code used to identify products to standardize nomenclature around the world. |
31163009 |
||
| Product Notes | |||
|
Note 1 |
Performance ratings are for guidance only. The user must determine suitability for a particular application. |
|
|
| CERTIFICATIONS/STANDARDS | |||
|---|---|---|---|
| ISO 9001:2015 | Conflict Minerals | ||
| RoHS3 | REACH | ||
WARNING This product can expose you to the chemical Ethylene Thiourea, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
