13x21x5mm Non-Standard Ball Bearing 13mm x 21mm x 5mm
UPC: 00193019338612
13x21x5mm Non-Standard Ball Bearing
✔️ 13mm x 21mm x 5mm - Rubber Sealed, Chrome Steel
This 13x21x5mm non-standard deep groove ball bearing is built with high-quality chrome steel and features rubber seals on both sides for protection from dust and debris. With its uncommon 13mm bore and ultra-slim 5mm width, it’s ideal for precision applications where standard bearings won't fit.
✅ Size: 13mm x 21mm x 5mm
✅ Type: Non-standard deep groove ball bearing
✅ Material: Chrome steel (52100 alloy)
✅ Cage: Steel
✅ Closures: Double rubber seals (2RS)
✅ Lubrication: Pre-greased, self-lubricated
✅ Quantity: 1 bearing
✅ Brand: VXB
💡 When should you choose a non-standard bearing with narrow width?
A bearing like this is ideal for compact assemblies, tight housings, or custom tools where just a few extra millimeters in width would prevent installation or affect performance.
Perfect for slim-profile mechanisms with exact fitment requirements.
🔍 Comparison Table: 13x21x5mm vs. 6801-2RS Bearing
| Feature | 13x21x5mm (Non-Standard) | 6801-2RS (Standard) |
|---|---|---|
| Inner Diameter (ID) | 13mm | 12mm |
| Outer Diameter (OD) | 21mm | 21mm |
| Width | 5mm | 5mm |
| Seals | Rubber sealed (2RS) | Rubber sealed (2RS) |
| Use Case | Precision/custom fit | Bicycles, motors, tools |
Best used when you need that exact 13mm bore with a matching slim profile for high-efficiency, sealed rotation.