MSPK-25-SS, Ruland, Two-piece shaft collar with keyway

Metric, Stainless steel (303), 2-piece shaft collars, Bore size:25, Clamp style,

Brand Ruland
Mfr Part No. MSPK-25-SS
Acorn Code MSPK-25-SS-RULAND
HS Code 8483 50 80
COO United States (US)



Ruland MSPK-SS is a two-piece shaft collar with a keyway.

The clamp style design does not mar the shaft, is easy to remove, and is indefinitely adjustable. It is commonly used for guiding, spacing, stopping, mounting, and component alignment. The keyway prevents slippage on the shaft when the shaft collar is used for positive drive. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity of Ruland shaft collars, TIR of ≤ 0.05mm. 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.

MSPK-SS is stamped with the Ruland name and bore size for ease of identification. Halves are mated throughout the manufacturing process for proper fit and alignment. Forged screws test beyond DIN 912 12.9 standards to ensure maximum holding power.

MSPK-SS is manufactured from solid bar stock sourced from select North American mills and machined to a fine burr free finish. 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.


Product Attributes
Manufacturer Product Code MSPK-25-SS
Basic Product Description Two-piece shaft collar with keyway
Measurement Metric
UOM Each
Bore size (mm) 25
Type Clamp style
Material Stainless steel (303)
Weight (Kg) 0.117

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