Prime Line Products B 548 Ball Bearing Roller 2 Pack

Product Description

The PRIME LINE PRODUCTS B 548 is a steel ball bearing roller sold in a 2-pack, designed for sliding and bypass door applications. Each roller features a 1 inch center grooved wheel that rides smoothly in standard door tracks, reducing friction and extending door service life. The axle hole measures 0.25 inches in diameter, making it compatible with a wide range of door hardware configurations. Licensed contractors and door installers rely on this type of roller for both new installations and replacement service calls on residential interior and closet door systems.

This roller is suited for residential door applications where smooth, quiet operation is required. The grooved wheel profile is sized for standard door track systems commonly found in bypass closet doors, sliding room dividers, and similar installations. The 2-pack quantity is practical for single-door replacements or as a service spare. Many door manufacturers specify this style of ball bearing roller as a standard component in their assemblies.

Key Features

• Steel construction for durability in high-cycle door applications
• 1 inch center grooved wheel fits standard door track channels
• 0.25 inch diameter axle hole for broad hardware compatibility
• Ball bearing design reduces rolling resistance and noise
• Sold as a 2-pack for complete single-door roller replacement

Compatibility

Used by many door manufacturers as a standard ball bearing roller component in residential sliding and bypass door systems.

Installation Notes

Installation is typically performed by a door hardware technician or general contractor. Remove the door panel from the track before replacing rollers to avoid injury and prevent damage to the track. Ensure the axle fastener is secured to the door stile before rehanging the panel. Verify track alignment after installation for proper door travel.