Te-co 50203 Ball Bearing Parallel 18 in 54 Balls

Product Description

The TE-CO 50203 is a ball bearing parallel designed for use in machining and workholding setups where consistent, precise workpiece elevation is required. The unit measures 18 inches in length and 0.25 inches thick, with 54 hardened balls distributed across the bearing surface to provide uniform contact and reduce friction during positioning. The black oxide finish resists corrosion and minimizes light reflection in the work area. Machinists and toolroom technicians use this type of parallel to support and align workpieces on milling machine tables, surface grinders, and inspection fixtures.

Ball bearing parallels are standard toolroom equipment in job shops, production machining environments, and precision grinding operations. The TE-CO 50203 is suited for setups requiring a flat, stable reference surface with low friction contact. The 18-inch length accommodates longer workpieces or wide vise setups. At 2.5 inches plate width, it provides a stable footprint for supporting parts during clamping without rocking or shifting. These parallels are typically used in pairs to provide balanced, level support under a workpiece.

Key Features

• 18-inch length handles longer workpieces and wide vise setups
• 54 balls distributed across the bearing surface for uniform, low-friction contact
• 0.375-inch ball diameter provides consistent elevation across the plate
• 0.25-inch thickness allows use in tight clearance applications
• 2.5-inch plate width delivers a stable base for workpiece support
• Black oxide finish reduces corrosion and minimizes reflective glare

Compatibility

Designed for use as a standard toolroom parallel in milling, grinding, and inspection setups where low-friction workpiece support is required.

Installation Notes

Ball bearing parallels are set in place by machinists and toolroom technicians without mechanical fastening. Clean the machine table and parallel surfaces before use to prevent debris from causing misalignment. Always use parallels in matched pairs to ensure level, balanced workpiece support. Avoid impact loading on the ball surface, as this can deform the balls and compromise parallel accuracy.