A Double Wide Shaft Collar is an essential industrial clamping device, distinguished by its wider-than-standard body. This increased width provides a significantly larger surface area for contact with the shaft and for securing set screws or clamping bolts. Manufactured by Raydafon Group to exacting standards, our double wide collars deliver superior holding power, enhanced stability, and reduced point loading on the shaft compared to standard collars. They are the go-to solution for demanding applications where slippage is not an option, acting as precise mechanical stops, locating components, or securing elements onto shafts in machinery, power transmission systems, and motion control setups.
Choosing Raydafon Group's double wide collars brings tangible benefits to your engineering and maintenance operations. The primary advantage is their exceptional grip and resistance to axial movement under heavy loads or high torque. The wider design distributes clamping force more evenly, minimizing shaft damage and indentation. This makes them ideal for use on softer shaft materials or in applications requiring frequent repositioning. Furthermore, their robust construction ensures reliable performance in harsh environments, offering excellent resistance to vibration loosening. By providing a more secure and durable fastening method, they reduce maintenance downtime and increase the overall reliability of your equipment.
Raydafon Group offers a comprehensive range of double wide shaft collars to meet diverse industrial requirements. Our product line is characterized by precision machining, stringent quality control, and the use of superior materials. Below are the detailed specifications for our standard offering.
| Part Number | Shaft Bore (Inch) | Outer Diameter (OD) | Double Wide Width | Set Screw Size (Qty) | Max Recommended Torque (ft-lb)* |
|---|---|---|---|---|---|
| RD-DW-0500 | 1/2" | 1.25" | 0.75" | 1/4"-20 UNC (2) | 45 |
| RD-DW-0625 | 5/8" | 1.50" | 0.875" | 5/16"-18 UNC (2) | 70 |
| RD-DW-0750 | 3/4" | 1.75" | 1.00" | 3/8"-16 UNC (2) | 120 |
| RD-DW-1000 | 1" | 2.25" | 1.25" | 1/2"-13 UNC (2) | 250 |
| RD-DW-1250 | 1-1/4" | 2.75" | 1.50" | 1/2"-13 UNC (2) | 380 |
| RD-DW-1500 | 1-1/2" | 3.25" | 1.75" | 5/8"-11 UNC (2) | 550 |
*Torque values are approximate and depend on shaft material and conditions. Consult Raydafon Group engineering for critical applications.
A: Opt for a double wide collar when your application involves high axial loads, significant vibration, or high torque that could cause a standard collar to slip or loosen. They are also recommended for use on softer shaft materials (like aluminum or mild steel) to prevent damage, for securing heavier components, and in situations where precise, repeatable positioning is critical. If a standard collar has failed or you are designing a new, robust system, starting with a double wide from Raydafon Group is a prudent choice.
A: First, ensure the shaft and collar bore are clean and free of burrs. Slide the collar to the desired position on the shaft. For collars with two set screws, tighten them sequentially in a criss-cross pattern, not fully tightening one before the other. Use a calibrated torque wrench to tighten the set screws to the recommended value (provided in our spec sheets). This ensures even force distribution and prevents the collar from cocking on the shaft. For the highest holding power on hard shafts, use set screws with a cup point.
A: Both have their ideal uses. Clamp-style collars (two-piece) exert a uniform 360-degree clamping force, which eliminates shaft marring and is perfect for applications requiring frequent adjustment or on precision-ground/hardened shafts. They also handle high dynamic loads well. Set screw styles are often more economical, provide a very strong mechanical lock (especially with cup points), and are simpler in design. The choice depends on your need for shaft protection, repositioning frequency, and budget. Raydafon Group offers both types to suit your specific requirement.
A: Absolutely. Raydafon Group manufactures double wide collars in several materials. Stainless steel (304 or 316) is available for superior corrosion resistance. Aluminum is offered for applications where weight reduction, non-magnetic properties, or good corrosion resistance are needed. Material selection depends on your operational environment (exposure to moisture, chemicals, temperature) and performance requirements.
A: Yes, Raydafon Group specializes in custom-engineered solutions. We provide "bored-to-order" services for double wide shaft collars. Whether you need a metric bore size, a decimal inch dimension, or a non-standard diameter, our manufacturing team can produce collars to your exact specifications. We can also accommodate requests for special finishes, different set screw types, or unique marking/labeling.
A: You will need to know two key measurements: the exact diameter of your shaft and the required holding strength. First, precisely measure your shaft diameter with calipers. Then, assess the axial load, torque, and vibrational forces in your application. Use our torque table as a guide. For heavy loads or safety-critical functions, selecting a collar with a higher torque rating than the calculated minimum is advisable. You can then cross-reference the shaft size with our product table or contact Raydafon Group's technical support team for personalized assistance in selecting the perfect part number.
The robustness and reliability of Raydafon Group's double wide collars make them indispensable across a wide spectrum of industries. Their primary function is to secure, locate, and space components on rotating shafts with unwavering certainty.
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