The 6308 Deep Groove Ball Bearing is a heavy-duty bearing designed to handle high radial loads and moderate axial loads in both directions. With deep raceway grooves and precision-engineered steel balls, it ensures smooth rotation, low friction, and reliable performance under demanding operating conditions.
Manufactured from high-quality chrome steel, and available in stainless steel and ceramic variants, the 6308 bearing provides excellent durability, wear resistance, and corrosion protection. It is offered in multiple configurations, including open type, metal shield (ZZ), and rubber sealed (2RS), allowing it to perform efficiently in various industrial environments.
Thanks to its robust construction and high load capacity, the 6308 bearing is widely used in heavy machinery, electric motors, mining equipment, and industrial transmission systems.
Key Features
- High load capacity for heavy-duty applications
- Smooth operation with low friction and low noise
- Available in Open, ZZ (metal shield), and 2RS (rubber seal)
- Strong durability and long service life
- Excellent resistance to wear and harsh environments
- Optional materials: stainless steel and ceramic
- Suitable for OEM and bulk supply
Technical Specifications
| Parameter | Value |
|---|---|
| Bearing Model | 6308 |
| Inner Diameter (d) | 40 mm |
| Outer Diameter (D) | 90 mm |
| Width (B) | 23 mm |
| Material | Chrome Steel / Stainless Steel / Ceramic |
| Cage Material | Steel / Brass / Nylon |
| Sealing Type | Open / ZZ / 2RS |
| Precision Rating | ABEC-1 / ABEC-3 / ABEC-5 |
| Lubrication | Grease / Oil |
| Operating Temperature | -20°C to 120°C |
Applications
The 6308 deep groove ball bearing is widely used in:
- Large electric motors and generators
- Heavy industrial machinery
- Mining and construction equipment
- Gearboxes and transmission systems
- Pumps and compressors
- Conveyor systems
Why Choose Us
- Factory direct supply with stable and consistent quality
- OEM and customization services available
- Competitive pricing for bulk and long-term orders
- Fast production and worldwide delivery
- Strict quality inspection and testing standards
FAQ
Q1: What is the difference between 6308-ZZ and 6308-2RS?
A: 6308-ZZ uses metal shields for higher speed and lower friction, while 6308-2RS uses rubber seals for better sealing performance against dust and moisture.
Q2: Can you provide heavy-duty or high-precision versions?
A: Yes, we offer high-load, high-precision, and custom material options including stainless steel and ceramic.
Q3: Do you support OEM and bulk orders?
A: Yes, we support OEM services including customized specifications, packaging, and branding for large-volume orders.
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