Ruland Manufacturing SP-22-A Shaft Collar 2-Piece 1-3/8 In Aluminum
Two-piece aluminum shaft collar clamps onto 1-3/8 inch round bore with alloy steel screw
- Product typeCouplings, Collars & Adapters
- Two-piece clamp enables fast installation without shaft removal
- 1-3/8 inch bore fits standard inch-dimension shafts precisely
- 2024 aluminium alloy provides high strength with light weight
- 47 inch clearance diameter avoids interference with nearby components
- Alloy steel screws deliver reliable clamping force on aluminium collar
Shaft Collar 1-3/8 Inch
This two-piece aluminium collar clamps onto a 1-3/8 inch round shaft to locate or secure components in power-transmission assemblies. The split design allows installation or removal without sliding the collar along the full shaft length, saving time during maintenance. Alloy-steel screws provide the clamping force while the 2024 aluminium body keeps weight low. It suits machinery builds that need a strong, reusable shaft connection.
Upgrade From Set-Screw Collars
A two-piece clamp replaces traditional single-piece set-screw collars when the shaft cannot be disassembled or when marring the shaft surface must be avoided. The jump is worth it on equipment that requires frequent repositioning of hubs, sprockets or bearings because the collar can be opened, moved and retightened without damaging the shaft. It also eliminates the need for a keyway, simplifying shaft preparation.
Build Integration Notes
The collar measures 2 1/4 inches outside diameter and 9/16 inch wide with a 2.47 inch clearance diameter, so adjacent components must clear those dimensions. The 2024 aluminium construction resists corrosion in typical industrial environments but is not suited for high-temperature or highly corrosive settings without additional protection. Alloy-steel hardware is included, so no separate fastener sourcing is required for standard mounting.
How it compares
Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.
- Price $14.99
- Cheaper than about 73% of the 693 comparable items (median $35.99).
Specifications
| Product | |
|---|---|
| Product type | Couplings, Collars & Adapters |
Questions about this item
What shaft diameter does the 1-3/8 inch bore fit?
The round bore accepts a 1-3/8 inch shaft; the two-piece clamp design locks around it without a keyway.
How do you install the two-piece collar without damaging the shaft?
Separate the halves, place them around the shaft, then torque the alloy-steel screws evenly so the clamp closes uniformly.
When should the collar be replaced or rechecked?
Inspect the alloy-steel screws and 2024 aluminum body periodically; retorque if vibration loosens the clamp or if wear appears on the bore.
More in Bearings, Belts & Drive Components
Similar items
Ruland Manufacturing OD21/33-NL Oldham Coupling Disc
- Couplings, Collars…





