RULAND MANUFACTURINGStainless Steel Shaft Collars

RULAND MANUFACTURING Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1 5/16 in Bore Dia

The RULAND MANUFACTURING Shaft Collar is a 2-piece, inch, round, clamp-on stainless steel shaft collar with a 1 5/16 in bore diameter, made from 303 stainless steel (MPN SP-21-SS).

SKU 3G-OTH-132624

Also listed as: SP21SS · SP 21 SS

Brand

RULAND MANUFACTURING

Item

Shaft Collar: 2-Piece, Inch, Round, Clamp-On, 1 5/16 in Bore Dia

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

SP-21-SS 

Type

Inch, Round, Clamp-On, 303 

Bore Dia

1 5/16 in 

Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Shaft Collar is a 2-piece, inch, round, clamp-on stainless steel shaft collar with a 1 5/16 in bore diameter, made from 303 stainless steel (MPN SP-21-SS).

Frequently Asked Questions

What is a RULAND MANUFACTURING SP-21-SS shaft collar used for?

The RULAND MANUFACTURING SP-21-SS is a 2-piece, clamp-on shaft collar used to position and secure components on shafts in industrial machinery, conveyors, and automation systems. Its 303 stainless steel construction resists corrosion in washdown or chemical environments.

What are the specifications of the RULAND MANUFACTURING SP-21-SS?

The SP-21-SS is a 2-piece, round, clamp-on shaft collar with a 1 5/16 in bore diameter, made from 303 stainless steel. It is an inch-series design from RULAND MANUFACTURING, part number SP-21-SS, suitable for precise axial positioning on shafts.

Where to buy a RULAND MANUFACTURING SP-21-SS shaft collar worldwide?

3G Electric supplies the RULAND MANUFACTURING SP-21-SS shaft collar to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this 303 stainless steel, 2-piece clamp-on collar.

How to install a RULAND MANUFACTURING 2-piece clamp-on shaft collar?

To install the RULAND MANUFACTURING SP-21-SS, place the two halves around the shaft at the desired position, align the clamping screws, and tighten evenly with a hex key. Avoid over-tightening to prevent shaft damage. Always verify axial position before final torque.

Used in

Common applications for RULAND MANUFACTURING

Automated packaging machinery — Ruland beam couplings (e.g., PSR20-8-5-A) for connecting servo motors to conveyor drive shafts.

CNC machine tools — Ruland rigid couplings (e.g., CLX-4-4-A) for precise alignment of ball screw assemblies.

Robotic arm joints — Ruland Oldham coupling hubs (e.g., OSC16-6-A) for accommodating axial motion in end-effector drives.

Pump and compressor systems — Ruland stainless steel shaft collars (e.g., CL-3-ST) for securing impeller shafts.

Printing press rollers — Ruland clamp-on beam couplings (e.g., PCR18-8-8-A) for synchronizing roller rotation with minimal backlash.

Material handling conveyors — Ruland set screw couplings (e.g., PSMR29-7-7-A) for linking gearboxes to drive rollers.

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING stainless steel shaft collars. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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