ZJU High-Precision 6300–6310 Deep Groove Ball Bearings
Basic Info.
| Inner Diameter | 35 mm |
| Outer Diameter | 80 mm |
| Width | 21 mm |
| Model | 6307 |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Introduction
This is a standard deep groove ball bearing (Model 6307), non-aligning, unseparated, single-row radial bearing made of high-quality bearing steel. Suitable for general-purpose applications with rich stock availability and multiple sealing options (Open, Z, ZZ, RS, etc.).
Basic Info.
- Pillow Block Bearing
- Cylindrical Roller Bearing
- Spherical Plain Bearing
- Thrust Self-aligning Roller Bearing
- Plain Bearing
- Spherical Roller Bearing
- Self-Aligning Ball Bearing
- Taper Roller Bearing
- Thrust Needle Roller Bearing
- Needle Bearing
- Bearing Block
- Deep Groove Ball Bearing
- Alloy Guide Rail
- Angular Contact Ball Bearing
- Linear Bearing
- Auto Bearing
- Machine Tools Accessories
- Auto Air Conditioning Compressor
- Thrust Ball Bearing
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Specifications
| Bore Diameter | 70mm |
| Outer Diameter | 90mm |
| Width | 10mm |
| Material | Bearing Steel |
| Load Direction | Radial |
| Model | S6814ZZ |
Description
Precision radial bearing with 70x90x10mm dimensions, made of high-quality bearing steel. Ideal for industrial applications requiring reliable performance. Manufactured by NTN with global production standards.
Specifications
| Bore x Outer x Width | 25 x 52 x 15 mm |
| Lubrication | Grease or Oil |
| Precision Rating | P0, P6, P5, P4 |
| Clearance | C0 / C2 / C3 |
| Feature | High Speed, Low Noise, Long Life |
| Origin | Japan |
Overview
NACHI 6205 bearing offers high precision and reliability for demanding applications. Designed for smooth, quiet operation with excellent durability. Available in various clearance and precision grades to meet specific requirements.
Specifications
| Bore Diameter | 85 mm |
| Outer Diameter | 150 mm |
| Width | 28 mm |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Precision deep groove ball bearing with high load capacity, suitable for radial loads. Made of high-quality bearing steel with P0-P2 precision ratings, ideal for industrial and OEM applications.
Specifications
| Bore Diameter | 25mm |
| Outer Diameter | 37mm |
| Width | 7mm |
| Material | Bearing Steel |
| Load Direction | Radial |
| Sealed Type | ZZ |
Description
Precision radial bearing with 25x37x7mm dimensions, made of high-quality bearing steel. Ideal for various industrial applications requiring reliable performance and durability.
Specifications
| Model No. | 6709 |
| Dimensions | 45*55*6mm |
| Lubrication | Grease or Oil |
| Certification | ISO9001:2008 |
| Origin | China |
| HS Code | 8482102000 |
Description
High-quality bearing with reliable performance, suitable for various industrial applications. Complies with ISO9001:2008 standards, offering durability and efficiency. Ideal for OEM and ODM services.
Specifications
| Bore Diameter | 17 mm |
| Outer Diameter | 47 mm |
| Width | 14 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Lubrication | Grease or Oil |
| Material | Bearing Steel |
Overview
High-quality radial bearing with non-aligning design, ideal for industrial applications requiring durability and precision. Made from bearing steel, it supports OEM/ODM service and is suitable for various machinery uses.
Specifications
| Bore Diameter | 40 mm |
| Outer Diameter | 90 mm |
| Thickness | 23 mm |
| Seals Type | ZZ 2RS Open |
| Precision Rating | P0, P6, P5, P4 |
| Lubrication | Grease or Oil |
Description
The NTN 6308ZZ is a single-row radial ball bearing made of high-quality bearing steel, ideal for various industrial applications. It features reliable sealing options (Zz 2RS Open), precise performance ratings (P0-P4), and operates with low vibration levels. Suitable for OEM/ODM use.
Specifications
| Model No. | 6812 |
| Dimensions | 60*78*10mm |
| Lubrication | Grease or Oil |
| Certification | ISO9001:2008 |
| Origin | China |
| OEM/ODM Service | Available |
Description
Precision bearing model 6812 from BDL, featuring reliable grease or oil lubrication. Certified under ISO9001:2008, manufactured in China with strong production capacity. Ideal for industrial applications requiring durability and consistent performance. Packaging tailored for safe dispatch worldwide.
Specifications
| Bore Diameter | 105 mm |
| Outer Diameter | 225 mm |
| Width | 49 mm |
| Model No. | 6321-2RS |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
Precision radial bearing with non-aligning design, ideal for high-speed applications. Made of durable bearing steel, it offers reliable performance under radial loads. Available with grease or oil lubrication options and comes in standard packaging for safe transport.
Specifications
| Bore Diameter (d): | 17 mm |
| Outer Diameter (D): | 40 mm |
| Width (B): | 12 mm |
| Model No.: | 6203 2RS |
| Trademark: | KOYO |
| Origin: | China |
Description
High-quality deep groove ball bearing 6203 2RS by KOYO, suitable for various industrial applications. Sealed design ensures reliable performance with minimal maintenance.
Specifications
| Model NO. | 6200 6201 6202 6203 6204 6205 6300 |
| On-Time Delivery Rate | 100.0% |
| Capacity | 200000000 Pieces/Year |
| Transport Package | Standard Industrial Packaging |
| Origin | China |
| HS Code | 8482102000 |
Description
High-quality bearings with various models available, produced in China, ensuring reliable performance and on-time delivery. Suitable for industrial applications with consistent quality control and efficient packaging for safe transport.
Specifications
| Bore Diameter | 5 mm |
| Outer Diameter | 11 mm |
| Width | 3 mm |
| Material | Bearing Steel |
| Load Direction | Radial |
| Model NO. | S685ZZ |
Description
Precision radial bearing with 5x11x3mm dimensions, made of high-quality bearing steel. Ideal for light-load, high-speed applications. Sealed design ensures durability and smooth operation. Manufactured by NTN with global production standards.

















