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Two-piece stainless steel shaft collar with clamp screws, 7/16 inch bore

Ruland Manufacturing

Ruland Manufacturing SP-7-SS 2-Piece Shaft Collar 7/16 in 303 SS

SKU CH-P8DF-VCRGT

A 303 stainless steel two-piece shaft collar clamps a 7/16 inch round bore with a 15/16 inch outside diameter and 1.08 inch clearance

  • 303 stainless steel resists corrosion in harsh environments
  • Two-piece clamp design allows installation without shaft removal
  • 7/16 inch round bore fits standard shaft sizes
  • 15/16 inch outside diameter provides secure grip
  • 11/32 inch width ensures stable clamping force

Precision Two-Piece Shaft Collar

The Ruland Manufacturing SP-7-SS is a 2-piece clamp-style shaft collar machined from 303 stainless steel. It fits a 7/16 in round bore and is designed for applications requiring corrosion resistance and repeated adjustment without marring the shaft. Maintenance teams and machine builders use it to locate components on linear axes, lead screws and drive shafts.

Sustained Clamping Performance

The two-piece construction distributes clamping force evenly around the 15/16 in outside diameter, maintaining grip under continuous vibration and thermal cycling. A 1.08 in clearance diameter accommodates adjacent hardware while the 11/32 in width provides a stable bearing face. Stainless steel screws resist galling during frequent repositioning, preserving holding power over extended service intervals.

Upgrade From Set-Screw Collars

This collar replaces single-piece set-screw types that damage shaft surfaces and require shaft removal for installation. The split design allows lateral mounting on assembled shafts, reducing downtime during changeovers. The jump is worth it when shafts are hardened, plated or already installed, and when frequent repositioning or corrosion resistance are required.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 80% of the 693 comparable items (median $35.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 303 stainless steel 2-piece collar generate when clamped on a shaft running continuously?

The collar itself has no moving parts and produces no heat or noise; only the shaft and bearings it secures will generate thermal or acoustic output.

What shaft diameter and style must I already have for the 7/16 in bore to clamp correctly?

A plain round shaft measuring 7/16 in in diameter is required; the collar has no keyway or internal threads.

Will the 15/16 in outside diameter and 11/32 in width fit alongside older collars or bearings already on my shaft?

The 1.08 in clearance diameter and 11/32 in width determine the space needed; compare those figures with your existing hardware to confirm clearance.

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