Description
Overview:
The NTN 6307 C3 Deep Groove Ball Bearing is a genuine, single-row, open face bearing designed to reduce friction and support smooth rotational movement. Made in Japan from hardened bearing-grade steel, it offers dependable performance in industrial, construction, and garden machinery. It suits drives, idlers, and shafts where a robust, accurate bearing is required. Dimensions are 35 mm inner diameter, 80 mm outer diameter, and 21 mm width (1.378 in x 3.150 in x 0.827 in). The open design allows easy inspection and re-lubrication as part of routine maintenance. With C3 internal clearance, it accommodates thermal expansion and higher speeds compared with standard clearance. A practical choice for electric motors, pumps, gearboxes, conveyors, and workshop equipment where reliability and service life matter.
Key Features:
- Genuine NTN part for assured quality and fit
- Made in Japan with precision-ground raceways for smooth running
- Single-row deep groove design handles radial and moderate axial loads
- C3 clearance for improved performance at higher speeds and temperatures
- Open (unsealed) type for easy lubrication and visual inspection
- Standard metric 6307 size for broad compatibility and straightforward replacement
- Dimensions: 35 x 80 x 21 mm (1.378 x 3.150 x 0.827 in)
- Hardened bearing steel construction for durability and wear resistance
- Low-friction performance to reduce heat build-up and energy loss
- Suitable for both OEM fitment and maintenance replacements
Typical Applications:
Used in electric motors, pumps, fans, gearboxes, conveyors, machine tools, agricultural implements, compactors, and general workshop machinery. Ideal where a reliable, open type bearing is preferred for periodic re-greasing and inspection. Common in drive ends, idler pulleys, and intermediate shafts that see continuous service, variable loads, or elevated temperatures where C3 internal clearance offers a margin for thermal growth.
Also known as:
Single row deep groove ball bearing, open type bearing, unsealed ball bearing, metric 6307 bearing, 35 mm bore bearing, C3 clearance bearing, ball race. Sometimes referred to informally as a roller bearing, though this model uses balls. Common trade references include "6307 open" or "6307 C3 open."
Alternate Part Numbers:
6307 C3
Product Specifications
| L&S Part No. | 6307C3 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NTN |
| OEM No. | NTN6307C3 |
| Unit of Sale | 1 |
| Size | ID: 35mm x OD: 80mm x Width: 21mm |
| Key Features | - 35 mm inner, 80 mm outer, 21 mm width dimensions - C3 clearance for higher speeds and temperatures - Open design for easy lubrication and inspection - Hardened steel for durability and wear resistance - Suitable for electric motors, pumps, and gearboxes |
