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Large jaw couplings are now being offered for bore sizes up to 1-3/4” or 45 mm and torque capacities of 2,655 in-lbs (300 Nm). These new large jaw couplings are designed for use in precision systems with high deceleration and acceleration curves, such as those found in semiconductor, solar, conveyor, and warehouse automation applications.
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Explore More >> 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.
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| Dimensions | |||
|---|---|---|---|
|
Bore (B1) Larger inner diameter. Should match nominal shaft diameter. |
0.3750 in |
B1 Max Shaft Penetration The maximum depth the shaft can penetrate into Bore B1. |
0.710 in |
|
Outer Diameter (OD) |
1.625 in (41.3 mm) |
Bore Tolerance Variance in finished bore range before installation. |
+0.001 in / -0.000 in |
|
Hub Width (LH) |
0.710 in |
Length (L) |
2.086 in (53.0 mm) |
|
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. |
M4 |
Number of Screws |
1 ea |
|
Screw Material |
Alloy Steel |
Screw Finish Surface finish and treatments on supplied hardware. |
Black Oxide |
|
Hex Wrench Size Wrench size that fits the screw head to tighten or loosen the screw. |
3.0 mm |
Seating Torque Torque required to install supplied hardware. Use torque wrench for accurate seating torque. |
4.6 Nm |
| Performance Specifications | |||
|
Torque Specifications Torque is dependent on the insert selected. Please see "Recommended Inserts" to select the correct insert for your application. |
Torque ratings vary with insert selection |
Misalignment Misalignment is dependent on the insert selected. Please see "Recommended Inserts" to select the correct insert for your application. |
Misalignment ratings vary with insert selection |
|
Maximum Speed |
8,000 RPM |
Moment of Inertia |
0.056127 lb-in2 |
|
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. |
Yes |
Recommended Inserts Any of these inserts will match this coupling hub. |
|
|
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 |
|
Fail Safe? If the spider fails tenons will interlock preventing the loss of power transmission. |
Yes |
||
| Additional Information | |||
|
Weight (lbs) |
0.153900 |
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... |
-10°F to 180°F (-23°C to 82°C) |
|
Material Specification |
2024-T351 Aluminum Bar |
Finish |
Bright |
Bright, No Plating |
Manufacturer |
Ruland Manufacturing |
|
|
Recommended Gap Between Hubs The recommended installation gap between the two hubs. |
0.050 in (1.25 mm) |
Country of Origin |
USA |
|
UPC |
634529068441 |
UNSPC Code used to identify products to standardize nomenclature around the world. |
31163011 |
|
Tariff Code |
8483.60.8000 |
||
| Product Notes | |||
|
Note 1 |
Stainless steel hubs are available upon request. |
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 spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance. |
|
|
| 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 
