6031-2RS1
Compact bearings for space-constrained applications. Lower load capacity but higher speed ratings.
NSK6001DDU12 × 28 × 8mm
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Specifications
| Bore diameter (d) | 12 mm |
| Outer diameter (D) | 28 mm |
| Width (B) | 8 mm |
| Dynamic load rating (C) | 5.4 kN |
| Static load rating (C₀) | 2.36 kN |
| Weight | 19.5 g |
| Max speed (grease) | 38,000 rpm |
| Max speed (oil) | — |
Equivalents Across Brands
Seal Type
Rubber Sealed (2RS)
Rubber contact seals on both sides. Superior protection from contaminants. Pre-lubricated, maintenance-free.
Best forDirty, dusty, or wet environments. Applications requiring long maintenance-free operation.
Avoid forVery high-speed applications (seal friction limits top speed). Environments exceeding 110°C.
Examples
- Agricultural machinery
- Conveyor rollers
- Automotive components
- Outdoor equipment
- Washing machines
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
Best forGeneral-purpose use. Normal temperatures, standard fits, moderate speeds.
TemperatureUp to ~70°C operating temperature
Where This Bearing Is Used
Extra Light Series — Common Applications
- Small electric motors
- Power tools
- Household appliances
- Office equipment
- Small pumps
- Dental and medical instruments
- Textile machinery spindles
- Small fans and blowers
Consumer electronicsMedical devicesLight manufacturingHVAC
Miniature / Small (12mm bore) — Typical Uses
- Small electric motors (fractional HP)
- Fans and blowers
- Power tools (drills, grinders)
- Office equipment (printers, copiers)
- Household appliances
- Skateboards and roller skates
- RC vehicles and hobby motors