Vlier B50A Threaded Ball Plunger 8-32 Steel

Product Description

The VLIER B50A is a threaded ball plunger designed for applications requiring controlled end force in an extremely compact, lightweight form. Featuring an 8-32 thread size, a 0.094-inch steel ball diameter, and a body length of 0.344 inches, this spring-loaded device delivers an initial end force of 0.5 pounds and a final end force of 1.25 pounds. The maximum ball reach is 0.025 inches. Its all-steel construction - both body and ball - makes it suitable for demanding positioning and detenting tasks in mechanical assemblies. Identified by a purple color code for quick field identification.

The B50A is used in applications where consistent, repeatable controlled end force is required in the smallest and lightest possible package. Typical installations include precision mechanical assemblies, tooling fixtures, jigs, and light-duty detent mechanisms in industrial and OEM equipment. It is well-suited for scenarios where space constraints prevent the use of larger plunger hardware. Installation is performed by machinists, tool and die makers, and mechanical assembly technicians working with threaded mounting configurations.

Key Features

• 8-32 thread size for standard threaded installation
• 0.094-inch steel ball diameter with 0.025-inch maximum ball reach
• 0.5 lb initial end force and 1.25 lb final end force for controlled positioning
• Steel body and steel ball construction for durability
• Compact 0.344-inch body length - among the smallest and lightest spring-loaded plunger devices available
• Purple color code for quick identification during assembly and service

Compatibility

Designed as a threaded ball plunger for use in applications requiring controlled end force with an 8-32 thread interface; suitable for tooling fixtures, jigs, and mechanical detent assemblies where minimal space is available.

Installation Notes

Install using standard hand tools appropriate for 8-32 threaded hardware; ensure the receiving hole is properly tapped and free of debris before threading in the plunger body. Disengage or de-energize any associated mechanisms before servicing or replacing the plunger. Do not over-torque the body, as this may damage the thread or affect ball travel and end-force performance. Follow applicable mechanical assembly standards and OEM equipment guidelines for fastener seating.