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RULAND MANUFACTURING SP-21-F 2-Piece Clamp-On Shaft Collar - Steel Shaft Collars
RULAND MANUFACTURINGSteel Shaft Collars

RULAND MANUFACTURING SP-21-F 2-Piece Clamp-On Shaft Collar

The RULAND MANUFACTURING Shaft Collar is a 2-piece, inch, round, clamp-on steel shaft collar with a 1 5/16 in bore diameter, made from carbon steel (MPN SP-21-F). It is designed for secure shaft positioning and…

SKU 3G-OTH-160382

Also listed as: SP21F · SP 21 F

Brand
RULAND MANUFACTURING
Item
SP-21-F 2-Piece Clamp-On Shaft Collar
Category
Steel Shaft Collars
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Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
SP-21-F
Type
Inch, Round, Clamp-On, Carbon Steel
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 steel shaft collar with a 1 5/16 in bore diameter, made from carbon steel (MPN SP-21-F). It is designed for secure shaft positioning and clamping in industrial applications.

Frequently Asked Questions

What is a RULAND MANUFACTURING 2-piece shaft collar used for?

A RULAND MANUFACTURING 2-piece shaft collar is used to position, secure, or limit components on a shaft in industrial machinery. It is commonly applied in conveyors, packaging equipment, and automation systems where precise axial location is required. The clamp-on design allows easy installation without damaging the shaft.

What are the specifications of the RULAND MANUFACTURING SP-21-F shaft collar?

The RULAND MANUFACTURING SP-21-F is a 2-piece, inch, round, clamp-on shaft collar with a 1 5/16 in bore diameter. It is made from carbon steel. The manufacturer part number is SP-21-F. This design provides secure clamping and easy adjustment on shafts in industrial applications.

Where to buy RULAND MANUFACTURING shaft collars worldwide?

You can source RULAND MANUFACTURING shaft collars worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the SP-21-F or other models. We supply genuine components for industrial maintenance and production needs.

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

To install a RULAND MANUFACTURING 2-piece clamp-on shaft collar, first separate the two halves. Place them around the shaft at the desired position, then align the screw holes. Tighten the screws evenly with a hex key to secure the collar without marring the shaft. Ensure the collar is perpendicular to the shaft for proper axial holding force.

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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 3/8 in Bore Dia 2, Round, Clamp On (MPN SPX-22-22-SS)
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RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 3/8 in Bore Dia 2, Round, Clamp On (MPN SPX-22-22-SS)
RULAND MANUFACTURING Rigid Shaft Coupling: 7/8 in Bore Dia 1, 5/8 in Bore Dia 2, Round Keyed, Inch (MPN SPC-14-10-F)
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RULAND MANUFACTURING Rigid Shaft Coupling: 7/8 in Bore Dia 1, 5/8 in Bore Dia 2, Round Keyed, Inch (MPN SPC-14-10-F)
RULAND MANUFACTURING Rigid Shaft Coupling: 3/4 in Bore Dia 1, 1/2 in Bore Dia 2, Round Keyed, Inch (MPN SPC-12-8-SS)
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RULAND MANUFACTURING Rigid Shaft Coupling: 3/4 in Bore Dia 1, 1/2 in Bore Dia 2, Round Keyed, Inch (MPN SPC-12-8-SS)
RULAND MANUFACTURING Rigid Shaft Coupling: 7/8 in Bore Dia 1, 5/8 in Bore Dia 2, Round Keyed, Inch (MPN SPC-14-10-SS)
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RULAND MANUFACTURING Rigid Shaft Coupling: 7/8 in Bore Dia 1, 5/8 in Bore Dia 2, Round Keyed, Inch (MPN SPC-14-10-SS)
RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 in Bore Dia 2, Round Keyed, Inch (MPN SPC-22-16-F)
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RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 in Bore Dia 2, Round Keyed, Inch (MPN SPC-22-16-F)
RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 in Bore Dia 2, Round Keyed, Inch (MPN SPC-22-16-SS)
RULAND MANUFACTURING
RULAND MANUFACTURING Rigid Shaft Coupling: 1 3/8 in Bore Dia 1, 1 in Bore Dia 2, Round Keyed, Inch (MPN SPC-22-16-SS)

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