Excess Pro Rear Bearing 6902 28x15x7

Product Overview The Excess Pro Rear Bearing is a sealed cartridge bearing (size 6902) designed as a replacement for Excess Pro and XLC rear hubs. The 28x15x7mm dimensions match standard BMX rear hub bearing specifications. Sold individually, enabling targeted bearing replacement without full hub overhaul.

Key Features

• Sealed Cartridge Design – Sealed bearing eliminates water and dirt ingress; reduces maintenance frequency and extends bearing life compared to loose-ball designs
• Standard 6902 Size – 28mm outer diameter / 15mm inner diameter / 7mm width; matches Excess Pro hub bearing specifications
• Smooth Operation – Precision-manufactured cartridge provides low friction and responsive hub performance
• Direct Replacement – Drop-in compatibility with original bearing; no modification or adjustment required
• Individual Unit – Sold one bearing at a time; purchase multiple for complete bearing set replacement (typically one per hub side)
• Durable Steel Construction – Hardened steel races and ball elements resist wear and maintain performance under racing loads

Technical Specifications

• Bearing Type: Sealed cartridge bearing
• Size: 6902 (28x15x7mm)
• Outer Diameter: 28mm
• Inner Diameter: 15mm
• Width: 7mm
• Seal Type: Sealed (rubber or metal shields)
• Quantity: Sold individually
• Material: Hardened steel races and balls

Compatibility and Ideal Use Cases

• Fits: Excess Pro rear hubs; Excess XLC-2 and XLC-3 rear wheels (406mm and 507mm sizes)
• Best For: Bearing replacement due to wear, play, or noise; routine hub maintenance; bearing upgrade
• Ideal Riders: All skill levels; those performing hub maintenance or bearing replacement
• Installation Requirement: Basic mechanical knowledge; requires bearing press or professional service for removal and installation
• Not Recommended For: Non-Excess hubs or incompatible bearing specifications; hubs requiring different bearing sizes

Common Replacement Reasons

• Bearing Play – Loose bearings indicate wear; replacement restores tight, responsive hub feel
• Grinding or Noise – Noise during wheel rotation signals bearing wear or contamination; replacement eliminates noise
• Drag or Resistance – Seized or damaged bearing increases friction; replacement restores smooth operation
• Water Contamination – Broken seal allows water ingress; sealed replacement bearing prevents future moisture damage

Maintenance Notes Sealed bearings require no regular greasing. If bearing develops play or resistance, replacement is typically more practical than service. When replacing one bearing, consider replacing the matching bearing on the opposite hub side to maintain consistent performance. Professional installation recommended unless experienced with bearing press equipment.

Installation Requirement Bearing removal and installation typically requires a bearing press. DIY removal using improper methods (hammering, prying) risks damaging the hub body. Professional mechanic or bearing service facility recommended for safe, clean installation.