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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.
Pre-assembled modular mounting systems are designed for adjustability across many mounting applications. Conveyor mounting systems emphasize strict parallel installation using a flange-bolt base and a conveyor rail guide. Sensor mounting systems offer flexibility in a mounting application with adjustable or 90-degree connectors, two-way bases, and various mounting brackets. Both systems include stainless steel rods (with or without scale) from 100mm to 300mm in length, zinc clamping levers, and connectors that allow adjustment of the rods’ position.
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.
Free 2 day shipping for all domestic orders. Free Expedited shipping for all international orders over $399.
Large Inventory
Widest variety of in-stock items in the industry kept in our Marlborough, MA USA factory.
Fast Delivery
All in-stock orders placed before 4:30pm EST will ship same day.
PRODUCT SPECIFICATIONS
Ruland OD32/51-PEK is an oldham coupling disk designed to fit hubs with an OD of 2.000" (50.8mm). It is a component of a three-piece design consisiting of two anodized aluminum or stainless steel hubs press fit onto a center disk. This three-piece design allows for a highly customizable coupling that easily combines clamp or set screw hubs with inch, metric, keyed, and keyless bores. OD32/51-PEK is made from PEEK for high temperature and cleanroom environments. Oldham couplings can accommodate all forms of misalignment and are especially useful in applications with high parallel misalignment (up to 10% of the coupling OD). They operate with low bearing loads protecting sensitive system components such as bearings and have a balanced design for reduced vibration at speeds up to 6,000 RPM. OD32/51-PEK is RoHS3 and REACH compliant.
PRODUCT SPECIFICATIONS
Dimensions
Outer Diameter (OD)
2.000 in (50.8 mm)
Performance Specifications
Rated Torque
Recommended torque based on slippage on the shaft.
Rating Coming Soon
Static Break Torque
The torque where the disk will break.
Rating Coming Soon
Angular Misalignment
Max angle of the shaft axes relative to each other.
0.5°
Parallel Misalignment
Shafts are parallel to each other, but not in-line with each other. They are offset.
0.010 in (0.25 mm)
Max Parallel Misalignment
Oldham couplings can exceed the standard parallel misalignment rating without additional bearing loads. When using at the max rating, life cycle of the insert may be impacted. The user must test for suitability.
0.200 in (5.08 mm)
Axial Motion
The amount shafts can move closer to or away from each other. This is meant for thermal expansion of the shafts. No axial force can be placed on the coupling.
0.008 in (0.20 mm)
Torsional Stiffness
Measures the rigidity of the coupling. The more rigid the coupling, the less windup it will have.
Rating Coming Soon
Moment of Inertia
0.03809 lb-in2 (1.115 X 10-5 kg-m2)
Maximum Speed
4,500 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.
Yes
Zero-Backlash?
Zero-backlash ensures there is no loss of motion during operation.
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 300°F (-23°C to 148°C)
Weight (lbs)
0.070200
Tariff Code
8483.60.8000
UNSPC
Code used to identify products to standardize nomenclature around the world.
31163015
Product Notes
Note 1
Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 2
Torque ratings for the couplings are based on the physical limitations/failure point of the torque disks. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the disks. 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 disks. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.
Prop 65
Required for the US State of California only.
Align the bores of the coupling on the shafts that are to be joined and determine if the misalignment parameters are within the limits of the coupling.(Angular Misialignment: 0.5 deg, Parallel Misalignment: 0.010 in (0.25 mm ), Axial Motion: 0.008 in (0.20 mm )
Rotate the hubs on the shaft so the drive tenons are located 90° from each other.
Place a torque disk so one groove fits over the drive tenons of a hub and center the disk by hand.
Insert a shim with the thickness of the coupling's axial motion rating into the groove of the torque disk.
Slide the tenons of the second hub into the mating groove in the disk until it touches the shim stock.
Fully tighten the screw(s) on each hub to the recommended seating torque using a hex wrench.
Remove the shim stock to leave a small gap between the top of the drive tenons and the torque disk to allow for axial movement.
