NTN Tapered Roller Bearings 30234-31338 – High-Precision, Heavy-Duty
Basic Info.
| Inner Diameter | 170 mm |
| Outer Diameter | 310 mm |
| Thickness | 57 mm |
| Model NO. | 30234 |
| Brand | NTN |
| Origin | Japan |
Introduction
High-precision NTN bearing (P0–P2 rating), long-life, low-noise, high-speed design. Rich stock available. Suitable for OEM/ODM applications. Complies with HS Code 8482200000. Packaged in carton & pallet.
Basic Info.
- Spherical Roller Bearing
- Taper Roller Bearing
- Alloy Guide Rail
- Thrust Needle Roller Bearing
- Thrust Self-aligning Roller Bearing
- Cylindrical Roller Bearing
- Bearing Block
- Pillow Block Bearing
- Self-Aligning Ball Bearing
- Deep Groove Ball Bearing
- Angular Contact Ball Bearing
- Linear Bearing
- Auto Bearing
- Needle Bearing
- Thrust Ball Bearing
Related Products
Specifications
| Bore Diameter | 40mm |
| Outer Diameter | 68mm |
| Width | 19mm |
| Model Numbers | 32008, 33008, 33108, 30208, 32208 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Material | Bearing Steel |
Description
High-precision roller bearings with open seal design, suitable for radial loads. Made from high-quality bearing steel, these single-row bearings offer reliable performance in various industrial applications. Available in multiple model numbers and precision grades.
Specifications
| Model No. | 30305 30306 30307 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Specification | 25*62*17 mm |
| Feature | Long Life, High Speed, Low Noise |
| Origin | China |
Description
Premium quality bearings with high precision and low noise operation. Available in multiple models (30305, 30306, 30307) with rich stock supply. Ideal for high-speed applications requiring reliability and durability. Made in China under strict quality control.
Specifications
| Bore Diameter | 35mm-400mm |
| Outer Diameter | As per model |
| Width | 65mm (e.g., 150*320*65mm) |
| Material | Bearing Steel |
| Seals Type | Open |
| Precision Rating | P0, P6, P5, P4, P2 |
Description
High-performance roller bearings with single row design, made from high-quality bearing steel. Available in various sizes (35mm-400mm bore), these radial bearings offer reliable operation under demanding conditions. Precision-rated options ensure optimal performance for OEM and industrial applications.
Specifications
| Model No. | 32204 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
| Specification | 105*190*68 mm |
| Origin | China |
Description
High-performance bearing with durable design, suitable for high-speed applications requiring low noise and long service life. Made in China, available in large stock.
Specifications
| Bore Diameter | 85mm |
| Outer Diameter | 150mm |
| Width | 36mm |
| Seals Type | Open |
| Precision Rating | P0, P6, P5, P4, P2 |
| Lubrication | Oil, Grease, Dry |
Description
High-precision TIMKEN bearing with robust performance. Suitable for industrial applications requiring reliability and durability. OEM/ODM service available. Made in America.
Specifications
| Bore x Outer Diameter x Thickness | 20 x 152 x 21 mm |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration Level | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
| Service | OEM/ODM Available |
| Origin | Japan |
Description
Premium NTN precision bearings with high-speed, low-noise performance. Ideal for industrial applications requiring reliability and durability. Rich stock available for fast delivery.
Specifications
| Bore x Outer x Thickness | 17*30*7 mm |
| Model NO. | 32004 32005 32006 32007 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Vibration | Z1V1, Z2V2, Z3V3 |
| Feature | Long Life, High Speed, Low Noise |
| Origin | Japan |
Description
High-precision NTN bearings from Japan offer long life, low noise, and high-speed performance. Available in multiple models with rich stock and OEM/ODM service support.
Specifications
| Bore Diameter | 35mm-400mm |
| Outer Diameter | Based on model |
| Width | 60*130*31mm (specific) |
| Seals Type | Open |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
High precision roller bearings with open seal design, made of high-quality bearing steel. Suitable for various industrial applications requiring radial load support. Available in multiple models with OEM/ODM service.
Specifications
| Bore Diameter | 90mm |
| Outer Diameter | 150mm |
| Width | 45mm |
| Seals Type | Open |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
High-precision radial roller bearing with open seal design, made of durable bearing steel. Suitable for industrial applications requiring reliable performance under radial loads. Dimensions: 90x150x45mm.
Product Parameters
| Bore Diameter | 20mm |
| Outer Diameter | 42mm |
| Width | 15mm |
| Material | Bearing Steel |
| Seals Type | Open |
| Precision Rating | P0, P6, P5, P4, P2 |
Description
High-performance roller bearing with open seal design, made of high-quality bearing steel. Suitable for radial load applications, precision-rated options available. Ideal for industrial machinery requiring reliability and durability.
Specifications
| Bore (mm) | 90 |
| Outer Diameter (mm) | 190 |
| Width (mm) | 46.5 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Noise Level | Low Noise |
| Origin | China |
Description
High-speed, long-life bearing with low noise and rich stock availability. Suitable for OEM/ODM services.
Specifications
| Bore Diameter | 55 mm |
| Outer Diameter | 100 mm |
| Width | 35 mm |
| Seals Type | Open |
| Material | Bearing Steel |
| Load Direction | Radial Bearing |
Description
Premium radial roller bearing with open seal design, made of high-quality bearing steel. Offers reliable performance in demanding applications. Precision rated P0-P2, suitable for OEM/ODM use. Compact size: 55x100x35mm.

















