Description
Overview:
The NTN 6304 2RSC3 Deep Groove Ball Bearing is a genuine, closed-face unit for smooth, reliable rotation in construction and garden machinery. Built from hardened bearing steel with precision Japanese engineering standards, it supports radial loads and moderate axial loads while keeping friction low. The double rubber seals (2RS) protect the raceways from dust and moisture, and C3 internal clearance suits higher running speeds and operating temperatures. Standard 6304 sizing makes it a straightforward drop-in replacement: 20mm inner diameter, 52mm outer diameter, and 15mm width. Ideal for electric motors, pump drives, mower spindles, rollers, and gearboxes found across workshops, farms, and sites. Supplied as a Genuine NTN part (MPN: NTN63042RSC3) for dependable fit and long service life.
Key Features:
- Genuine NTN component for consistent quality and longevity
- Closed-face (double rubber sealed) design resists dust, dirt, and moisture
- C3 internal clearance for higher speed capability and thermal expansion tolerance
- Deep groove geometry handles radial and moderate axial loads efficiently
- Factory lubricated for clean installation and reduced maintenance
- Standard 6304 dimensions: 20x52x15mm for easy replacement in common housings
- Smooth, low-noise running suitable for power tools and machinery
- Corrosion-resistant steel races and balls for durability in tough environments
Typical Applications:
Commonly used in electric motors, alternators, small gearboxes, mower decks and spindles, rollers, idler pulleys, compactors, mixers, conveyors, and pump drive ends. Suitable for general workshop machinery and outdoor power equipment where sealed bearings offer protection against contaminants and extended service intervals.
Also known as:
6304 2RS C3, sealed deep-groove 20x52x15, single-row radial unit, sealed ball race, 6000-series 6304 C3, closed-face 6304.
Alternate Part Numbers:
6304 2RSC3
Product Specifications
| L&S Part No. | 63042RSC3 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NTN |
| OEM No. | NTN63042RSC3 |
| Unit of Sale | 1 |
| Size | ID: 20mm x OD: 52mm x Width: 15mm |
| Key Features | - Standard 6304 size: 20mm ID, 52mm OD, 15mm width - Double rubber seals protect against dust and moisture - C3 internal clearance for higher speed and temperature tolerance - Hardened steel construction for durability in tough environments - Suitable for electric motors, pump drives, and mower spindles |
