Ruland SPK-28-F 1215 Lead-Free Steel Shaft Collar, Two Piece with Keyway, 0.688" Width, 2 3/4" OD, 1.7500" Bore, 3/8" Keyway

Shaft collars are commonly used as guides, spacers, mechanical stops, and for component alignment on a shaft. They are one of the most common power transmission components and are found on equipment in most industries.This shaft collar is designed with an ANSI B17.1 standard keyway for positive drive capabilities in rotating applications. Clamp style shaft collars do not mar the shaft, are easy to install and adjust, and have high holding power. They distribute compressive forces evenly around the shaft for a tight fit and improved holding power when compared to set screw styles. Two-piece styles are mated throughout the manufacturing process for proper fit and alignment. They offer increased holding power to one-piece styles and allow for in-place installation and disassembly. Ruland shaft collars have tightly controlled face to bore perpendicularity, TIR of <0.002”, for proper alignment of mating components.This shaft collar is made from 1215 lead-free steel. Ruland uses a proprietary black oxide process on steel shaft collars to produce a fine glossy finish while increasing holding power and providing some corrosion resistance. It also ensures smooth installation of the screw and prevents stick-slip. Keyed shaft collars are stamped with the Ruland name and bore size for ease of identification.Ruland shaft collars are carefully made from select bar stock sourced exclusively from North American mills and are machined to a fine burr-free finish. Hardware exceeds ANSI standards for maximum torqueing capabilities and holding power. Ruland, founded in 1937, manufactures all products in our Marlborough, MA USA factory under strict controls using proprietary processes. Shaft collars are RoHS2 and REACH compliant.

• Wrap evenly around the shaft for higher holding power than set screw style. Clamp style shaft collars have high holding power, do not mar the shaft, and are infinitely adjusable.
• Keyway is used for additional torque transmission capabilities and to prevent slippage on the shaft when the collar is used in positive drive applications.
• Made from 1215 lead-free steel with a proprietary black oxide finish for high holding power, a fine glossy finish, weldability, and corrosion resistance.
• Ruland shaft collars have tightly controlled face to bore perpendicularity (TIR of ≤.002") for proper alignment of mating components. Ruland mates the halves of two-piece styles throughout the manufacturing process for proper fit and alignment.
• Hardware exceeds ANSI standards for maximum torque capabilities. Ruland shaft collars are carefully made from select North American bar stock in our Marlborough, Massachusetts factory and are RoHS3 and REACH compliant.