Loose Ball Bearings Enduro 5/32 (0.15625) BK-5044 Grade 25, 200 pcs

Loose Ball Bearings Enduro 5/32 (0.15625) BK-5044 Grade 25, 200 pcs

The Enduro BK-5044 set includes high-quality loose steel bearing balls designed for servicing and rebuilding bicycle hubs, bottom brackets, and other traditional bearing systems. While sealed bearings dominate modern bikes, loose ball components are still widely used and essential for proper maintenance.

These 5/32 inch (0.15625) balls are manufactured from Grade 25 chromium steel, offering excellent dimensional accuracy and roundness. Grade 25 meets or exceeds a sphericity tolerance of 25 per 1,000,000, which is considered extremely round and ensures smooth rolling and consistent load distribution.

Only a few years ago, Grade 25 balls were regarded as a very high-end option, used exclusively in the best hubs and bottom brackets. Today, Enduro’s sealed bearings feature even tighter tolerances, but Grade 25 remains a reliable and durable standard for serviceable and traditional bearing applications.

Enduro offers loose bearing balls in various materials and grades to suit different performance requirements. The BK-5044 pack contains 200 pieces, making it ideal for both individual repairs and workshop stock.

• Type: Loose ball bearings
• Diameter: 5/32" (0.15625)
• Material: Chromium steel
• Grade: Grade 25
• Quantity: 200 pcs
• Application: Hubs, bottom brackets, and loose-ball bearing systems