Overview
The NSK 6310VVC3 is a single-row deep groove ball bearing engineered for industrial machinery requiring sealed protection and precise internal clearance. The VVC3 designation indicates dual non-contact rubber seals on both sides, C3 radial internal clearance for thermal expansion compensation, and metric dimensions. This bearing combines proven NSK quality with sealed-bearing reliability for applications ranging from motor drives to gearboxes.
Key Features
- Sealed Design: Dual non-contact rubber seals keep lubricant in and contaminants out, extending service intervals and bearing life
- C3 Clearance: Larger-than-standard internal clearance accommodates thermal expansion in high-speed and high-temperature applications
- High-Speed Capability: Deep groove geometry supports combined radial and axial loads at elevated rotational speeds with low noise and vibration
- Pressed Steel Cage: Evenly spaces rolling elements to ensure consistent load distribution and minimize friction
- Metric Dimensions: 50mm bore, 110mm outer diameter, 27mm width fit standard ISO mounting arrangements
Technical Specifications
| Bore Diameter (d) | 50 mm |
| Outer Diameter (D) | 110 mm |
| Width (B) | 27 mm |
| Seal Type | VVC3 – Dual non-contact rubber seals on both sides |
| Radial Clearance | C3 (Larger than standard for thermal expansion) |
| Cage Material | Pressed Steel |
| Bearing Type | Single-Row Deep Groove Ball Bearing |
| Series | NSK 6300 Medium Series |
| Load Direction | Radial and Axial (both directions) |
| Manufacturer | NSK Ltd. |
| Condition | New in Box |
Typical Applications
- Motor and pump bearings in HVAC and industrial equipment
- Gearbox and transmission assemblies with sealed protection requirements
- Conveyor and material handling drive systems
- Clutch and coupling assemblies in machine tools
- Compressor and turbine rotor support
- Printing and textile machinery spindle bearings
Compatibility & Replacements
Compatible With
- ISO 15:1 standard mounting interfaces
- Standard shaft sizes and housing bores rated for 50mm metric bore
- Lubrication-free operation due to sealed design; compatible with standard grease-filled applications
- High-speed spindle systems and precision machinery requiring sealed ball bearings
Replaces / Drop-In Replacement For
- NSK 6310VV (standard clearance version; verify clearance requirements before substitution)
- NSK 6310C3 (open bearing with C3 clearance; sealed upgrade)
- OEM equivalent sealed deep groove bearings with identical 50×110×27 metric dimensions and C3 clearance
Works With
- Industrial automation and machinery control systems
- Standard bearing installation fixtures and puller tools
- Grease-lubricated bearing assemblies and sealed enclosures
- Condition monitoring systems (vibration sensors compatible with sealed bearing housings)
