Needle Roller Bearings Rnav4908-4912 – High-Load, Precision OEM Factory
Specifications
| Inner Diameter | 48 mm |
| Outer Diameter | 62 mm |
| Thickness | 22 mm |
Introduction
RNAV4908 is a radial needle roller bearing without inner and outer rings, made of high-quality bearing steel. It features closed-type design, grease or oil lubrication, and precision ratings from P0 to P2. Ideal for compact applications requiring high load capacity and low friction. Origin: China. HS Code: 8482102000.
Basic Info.
- Bearing Block
- Spherical Plain Bearing
- Alloy Guide Rail
- Cylindrical Roller Bearing
- Linear Bearing
- Angular Contact Ball Bearing
- Needle Bearing
- Spherical Roller Bearing
- Plain Bearing
- Self-Aligning Ball Bearing
- Thrust Needle Roller Bearing
- Thrust Ball Bearing
- Thrust Self-aligning Roller Bearing
- Taper Roller Bearing
- Bearing Accessories
- Deep Groove Ball Bearing
- Thrust Taper Roller Bearing
- Auto Bearing
- Other Car Accessories
- Pillow Block Bearing
Related Products
Basic Specifications
| Inner Diameter | 50 mm |
| Outer Diameter | 58 mm |
| Thickness | 25 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Product Overview
This needle roller bearing (Model: K50X58X25) features high-precision radial load capacity, compact design without inner/outer rings, and is made of premium bearing steel. Suitable for OEM/ODM applications with grease or oil lubrication, standard precision P0–P2 and clearances C0–C4. Fast delivery (3–7 days) from China.
Basic Info.
| Inner Diameter | 75 mm |
| Outer Diameter | 81 mm |
| Thickness | 20 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Introduction
This needle roller bearing (Model: K75X81X20) features compact dimensions (75×81×20 mm), radial load capacity, and high-precision options (P0–P2). Made of bearing steel, it supports grease or oil lubrication and is suitable for OEM/ODM applications. Origin: China.
Basic Info.
| Inner Diameter | 15 mm |
| Outer Diameter | 35 mm |
| Thickness | 19 mm |
| Model No. | NUTR15 |
| Type | Closed Needle Roller Bearing |
| Material | Bearing Steel |
Description
This NUTR15 needle roller bearing features compact dimensions (15×35×19 mm), radial load capability, and a closed design for enhanced sealing. Made from high-grade bearing steel, it supports grease or oil lubrication and offers precision ratings from P0 to P2. Ideal for OEM/ODM applications with fast delivery (3–7 days) and certified origin (China).
Basic Info.
| Inner Diameter | 42 mm |
| Outer Diameter | 48 mm |
| Thickness | 35 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
High-precision needle roller bearing (K42X48X35) with radial load capacity, grease/oil lubrication, and P0–P2 precision ratings. Designed without inner/outer rings for compact applications. Made in China, OEM/ODM supported.
Basic Info.
| Inner Diameter | 14 mm |
| Outer Diameter | 30 mm |
| Thickness | 11.8 mm |
| Model No. | RSTO10 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
High-precision needle roller bearing RSTO10, radial load design, without inner/outer ring. Compact size (14×30×11.8 mm), suitable for space-constrained applications. Available in P0–P2 precision and C0–C4 clearance. Lubricated with grease or oil. Made in China, OEM/ODM supported.
Basic Info.
| Inner Diameter | 20 mm |
|---|---|
| Outer Diameter | 52 mm |
| Thickness | 25 mm |
| Model No. | NUTR2052 |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
High-precision needle roller bearing designed for radial load applications. Features compact dimensions (20×52×25 mm), grease or oil lubrication, and multiple precision/clearance options (P0–P2, C0–C4). Made in China, OEM/ODM supported.
Basic Info.
| Inner Diameter | 45 mm |
| Outer Diameter | 100 mm |
| Thickness | 32 mm |
| Load Direction | Radial Bearing |
| Type | Closed Needle Roller Bearing |
| Material | Bearing Steel |
High-precision needle roller bearing (Model: NUTR45100), designed for radial loads. Features no inner/outer ring, grease or oil lubrication, and standard clearances (C0/C3/C4). Made in China with OEM/ODM support.
Basic Info.
| Inner Diameter | 4 mm |
| Outer Diameter | 4 mm |
| Thickness | 7 mm |
| Material | Alloy |
| Type | Open |
| Certification | ISO9001:2008 |
Introduction
Precision-engineered alloy bearing with open design, suitable for OEM/ODM applications. Compact size (4×4×7mm), grease or oil lubrication, certified to ISO9001:2008. Made in China, HS Code 8482102000.
Basic Info.
| Model NO. | LB4UU |
| Load Direction | Radial Bearing |
| Type | Closed |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Origin | China |
Needle Roller Bearing
High-precision radial needle roller bearing without inner/outer rings, made of bearing steel. Suitable for compact radial load applications. Lubricated with grease or oil. Available in precision grades P0–P2 and clearances C0–C4. Fast delivery (3–7 days) and OEM/ODM support.
Basic Info
| Inner Diameter | 13 mm |
| Outer Diameter | 20 mm |
| Thickness | 15 mm |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Introduction
This K15X20X13 needle roller bearing features compact dimensions (20×13×15 mm), radial load capacity, high-precision options (P0–P2), and standard clearances (C0/C3/C4). Made of bearing steel, it supports OEM/ODM service and ships in 3–7 days.
Basic Info.
| Inner Diameter | 20 mm |
| Outer Diameter | 24 mm |
| Thickness | 17 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
High-precision needle roller bearing (20×24×17 mm) with radial load capacity, made of premium bearing steel. Features closed design, grease/oil lubrication, and standard precision grades (P0–P2). Ideal for compact, high-load applications.
Basic Info.
| Inner Diameter | 25 mm |
| Outer Diameter | 33 mm |
| Thickness | 24 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Description
This needle roller bearing (Model: K25X33X24) features compact dimensions (25×33×24 mm), radial load capacity, and high-precision options (P0–P2). Made of premium bearing steel, it supports grease or oil lubrication. Ideal for OEM/ODM applications with fast delivery (3–7 days).

















