$1,524.27 ea
Quantity Price (USD)
1 $1,524.27 ea
5 $1,143.20 ea
15 $853.59 ea
50 $512.54 ea
100 Request Quote
In Production Lead Time: 1 Week or Less
Ruland SPH-72-SS, 4 1/2" Heavy Duty Shaft Collar, 303 Stainless Steel, Two-Piece Clamp Style, 6 1/4" OD, 1.375" Width


Ruland SPH-72-SS is a two-piece shaft collar with a 4 1/2" bore, 6 1/4" OD, and 1.375" width. The clamp style design does not mar the shaft, is easy to remove, and is indefinitely adjustable. SPH-72-SS is commonly used for guiding, spacing, stopping, mounting, and component alignment. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity (TIR of ≤ .002"). Perpendicularity is critical for alignment when the shaft collar is used as a load bearing face, mechanical stop, or for mounting components such as gears or bearings. Proprietary processes have been developed by Ruland to maintain superior fit, finish, and holding power. SPH-72-SS is stamped with the Ruland name and bore size for ease of identification. This heavy duty shaft collars have larger ODs and screws for higher holding power. Halves are mated throughout the manufacturing process for proper fit and alignment. Forged screws test beyond ANSI standards to ensure maximum holding power. SPH-72-SS is machined from solid bar stock to a fine burr free finish and sourced exclusively from North American mills. Ruland uses 303 stainless steel with hardware of like material for consistent corrosion resistance. Stainless steel hardware undergoes a proprietary surface treatment process to prevent galling. It is RoHS2 and REACH compliant and manufactured in our Marlborough, MA factory under strict controls using proprietary processes.



Bore B

4.5000 in

Bore Tolerance

+.004 in / -.000 in

Outer Diameter OD

6 1/4 in

Clearance Diameter C MAX

6.548 in

Width W

1.375 in

Width Tolerance

+.003 in / -.010 in

Fastening Hardware

Forged Clamp Screw

1/2-20 x 2

Screw Material

18-8 300 Series Stainless Steel

Hex Wrench Size

3/8 in

Screw Finish


Seating Torque

800 lb-in

Screw Location R

2.688 in

Number of Screws

2 ea

Additional Information

Material Specification

Type 303 Austenitic, Non-Magnetic Bar

Finish Specification



Ruland Manufacturing

Country of Origin



-40°F to 350°F
-40°C to 176°C

Weight (lbs.)


Product Notes

Note 1

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Prop 65

WARNING This product can expose you to the chemical Nickel (metallic), known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

ISO 9001:2015


Conflict Minerals







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