LOS217001 4x7x2.5mm Bearings

This product is a factory replacement precision ball bearing set designed for small-scale Losi vehicles and drivetrain applications. The LOS217001 4x7x2.5mm Bearings are used to support rotating shafts and moving drivetrain components while reducing friction, improving efficiency, and extending component life. These compact bearings are built for smooth operation under both high-speed running and repeated impact conditions. This is a direct OEM replacement part commonly used during maintenance, rebuilds, or performance refreshes.

Features:

• Genuine Losi replacement ball bearing set
• Designed for small-scale RC platforms
• Reduces drivetrain friction for smoother operation
• Improves efficiency and overall performance
• Sealed design helps resist dirt and debris
• Precision steel construction for durability
• Direct OEM replacement
• Ideal for maintenance and rebuilds

Specifications:

• Part Number: LOS217001
• Part Type: Ball Bearing
• Bearing Size: 4 x 7 x 2.5mm
• Material: Steel bearing construction
• Seal Type: Shielded/sealed
• Vehicle Compatibility: Select small-scale Losi platforms
• Installation: Direct Replacement
• Quantity: Set of bearings

What's Included:

• (1) Set of 4 x 7 x 2.5mm ball bearings

Community Feedback:

Owners of small-scale Losi vehicles commonly replace these bearings as part of routine maintenance, especially after running in dusty or high-impact environments. Users report that fresh bearings help restore smooth drivetrain performance and reduce friction-related wear. Many hobbyists keep spare bearing sets on hand because they are one of the most frequently replaced wear items in compact RC platforms.