Needle Roller Bearings LB4UU-LB8UU, High-Precision, Low-Friction
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.
- 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 Info.
| Inner Diameter | 32 mm |
|---|---|
| Outer Diameter | 40 mm |
| Thickness | 25 mm |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
High-precision needle roller bearing (K32X40X25) made of bearing steel, designed for radial load applications. Compact size (32×40×25 mm), closed type, no inner/outer ring. Available in P0–P2 precision grades and C0–C4 clearance options. OEM/ODM supported. Made in China.
Basic Info.
| Inner Diameter | 22 mm |
| Outer Diameter | 30 mm |
| Thickness | 13 mm |
| Model No. | RNAV4903 |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
Description
High-precision needle roller bearing (RNAV4903) with compact dimensions 22×30×13 mm. Designed for radial load applications, made of high-grade bearing steel. Features closed design, grease/oil lubrication, and standard clearances (C0/C3/C4). Supports OEM/ODM service. Made in China.
Basic Info.
| Inner Diameter | 14 mm |
| Outer Diameter | 18 mm |
| Thickness | 13 mm |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
High-precision needle roller bearing (K14X18X13) made of bearing steel, designed for radial load applications. Compact size (14×18×13 mm), closed type, no inner/outer ring. Suitable for OEM/ODM use with standard P0–P2 precision and C0–C4 clearance options.
Basic Info.
| Inner Diameter | 20 mm |
| Outer Diameter | 26 mm |
| Thickness | 16 mm |
| Model No. | NA49/8 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
This NA49/8 needle roller bearing features compact dimensions (20×26×16 mm), radial load capacity, and a closed design for enhanced sealing. Made of 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).
Basic Info.
| Model No. | LB25UU |
|---|---|
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Style | Without Outer Ring, Without Inner Ring |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Description
High-precision needle roller bearing LB25UU, radial load design, compact without inner/outer rings. Made of high-grade bearing steel, pre-lubricated with grease or oil. Suitable for OEM/ODM applications. Fast delivery (3–7 days) from China.
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 | 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 | 70 mm |
| Outer Diameter | 95 mm |
| Thickness | 4 mm |
| Model NO. | AXK5578 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
High-precision needle roller bearing without inner/outer ring, designed for radial load applications. Features grease or oil lubrication, P0–P2 precision ratings, and C0–C4 clearance options. Made in China, HS Code 8482102000.
Basic Info.
| Inner Diameter | 14 mm |
| Outer Diameter | 17 mm |
| Thickness | 10 mm |
| Model | LZ25 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
This LZ25 needle roller bearing features compact dimensions (14×17×10 mm), radial load capability, and a closed design for enhanced sealing. Made from high-grade bearing steel, it supports precision ratings P0–P2 and clearances C0–C4. Ideal for OEM/ODM applications with fast delivery (3–7 days) and standard carton/pallet packaging.
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 | 17 mm |
| Outer Diameter | 17 mm |
| Thickness | 24 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Description
This needle roller bearing features compact dimensions (17×17×24 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) and certified origin (China).
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.

















