China Rnav4008-4012 Needle Roller Bearings – High-Precision, Factory Direct
Basic Info.
| Inner Diameter | 51.6 mm |
| Outer Diameter | 68 mm |
| Thickness | 28 mm |
| Load Direction | Radial Bearing |
| Type | Closed Needle Roller Bearing |
| Material | Bearing Steel |
High-precision needle roller bearing (RNAV4008) with compact dimensions 51.6×68×28 mm, designed for radial loads. Features closed construction, grease/oil lubrication, and P0–P2 precision grades. Made of high-grade bearing steel, OEM/ODM supported. Origin: China.
Basic Info.
Related Products
Basic Info.
| Inner Diameter | 120 mm |
| Outer Diameter | 165 mm |
| Thickness | 45 mm |
| Model NO. | NA4924 |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
High-precision needle roller bearing (NA4924) with compact dimensions 120×165×45 mm. Designed for radial load applications, made of premium bearing steel, grease or oil lubricated. Available in precision grades P0–P2 and clearances C0–C4. OEM/ODM supported. Made in China.
Basic Info.
| Inner Diameter | 285 mm |
| Outer Diameter | 320 mm |
| Thickness | 60 mm |
| Model No. | RNA4852 |
| Type | Closed Needle Roller Bearing |
| Material | Bearing Steel |
Description
High-precision radial needle roller bearing (RNA4852), without inner/outer rings, made of bearing steel. Features closed design, grease/oil lubrication, and standard clearances (C0/C3/C4). Precision ratings available: P0–P2. Compact size: 285×320×60 mm. OEM/ODM supported. Made in China.
Basic Info.
| Inner Diameter | 10 mm |
| Outer Diameter | 22 mm |
| Thickness | 13 mm |
| Model No. | NA4900 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
This needle roller bearing (NA4900) features compact dimensions of 10×22×13 mm, radial load capability, and high-precision options (P0–P2). Made of bearing steel, it’s grease or oil lubricated, closed-type, and suitable for OEM/ODM applications. Origin: China.
Basic Info.
| Inner Diameter | 85 mm |
| Outer Diameter | 120 mm |
| Thickness | 35 mm |
| Type | Needle Roller Bearing |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
Introduction
NA4917 is a high-precision radial needle roller bearing without inner/outer rings. Made of bearing steel, it supports grease or oil lubrication and offers precision grades P0–P2 and clearances C0–C4. Compact size (85×120×35 mm), ideal for space-constrained applications. OEM/ODM supported.
Basic Info
| Inner Diameter | 52 mm |
| Outer Diameter | 68 mm |
| Thickness | 22 mm |
| Model No. | RNA4909 |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
Introduction
RNA4909 is a high-precision radial needle roller bearing made of bearing steel. Compact design (52×68×22 mm), closed type, grease or oil lubricated. Suitable for OEM/ODM applications with P0–P2 precision and C0–C4 clearance options. Made in China.
Basic Info.
| Inner Diameter | 14 mm |
| Outer Diameter | 22 mm |
| Thickness | 16 mm |
| Model No. | RNA4900X2A |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
This precision needle roller bearing (RNA4900X2A) features compact dimensions of 14×22×16 mm, radial load capacity, and high-grade bearing steel construction. Designed without inner/outer rings for lightweight integration, it supports grease or oil lubrication and offers clearance options C0/C3/C4 with precision ratings from P0 to P2. Ideal for OEM/ODM applications requiring reliability and space efficiency.
Basic Info.
| Inner Diameter | 68 mm |
| Outer Diameter | 85 mm |
| Thickness | 25 mm |
| Model No. | RNA4912 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
High-precision RNA4912 needle roller bearing with radial load capacity. Features no inner/outer ring design, grease or oil lubrication, and P0–P2 precision ratings. Made in Japan by IKO, ideal for compact, high-load applications.
Basic Info.
| Inner Diameter | 35 mm |
| Outer Diameter | 47 mm |
| Thickness | 17 mm |
| Model No. | RNA4906 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
RNA4906 is a high-precision radial needle roller bearing without inner or outer rings. Compact size (35×47×17 mm), grease/oil lubricated, and available in P0–P2 precision grades. Ideal for OEM/ODM applications with fast delivery (3–7 days). Made in China, HS Code 8482102000.
Basic Info
| Inner Diameter | 110 mm |
| Outer Diameter | 140 mm |
| Thickness | 30 mm |
| Model No. | NA4822 |
| Type | Needle Roller Bearing, Closed, Without Outer/Inner Ring |
| Material | Bearing Steel |
Description
This NA4822 needle roller bearing features radial load direction, compact dimensions (110×140×30 mm), high-precision rating (P0–P2), and standard clearance (C0/C3/C4). Designed for OEM/ODM applications, it supports grease or oil lubrication and is manufactured in China under BDL brand.
Basic Info.
| Inner Diameter | 125 mm |
| Outer Diameter | 150 mm |
| Thickness | 40 mm |
| Model No. | RNA4922 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Introduction
This RNA4922 needle roller bearing features radial load direction, no inner/outer ring design, and high-precision options (P0–P2). It supports grease or oil lubrication, offers standard clearances (C0/C3/C4), and is manufactured in China under the BDL brand. Ideal for compact, high-load applications.
Basic Info.
| Inner Diameter | 160 mm |
| Outer Diameter | 190 mm |
| Thickness | 50 mm |
| Model No. | RNA4928 |
| Type | Needle Roller Bearing, Closed |
| Material | Bearing Steel |
Description
RNA4928 is a high-precision radial needle roller bearing without inner and outer rings. Designed for compact applications, it features grease or oil lubrication, P0–P2 precision ratings, and standard clearances (C0/C3/C4). Made in China, it offers OEM/ODM service and fast delivery (3–7 days).
Specifications
| Bore Size | 1-500 mm |
| Material | Bearing Steel |
| Seals Type | Zz 2RS Open |
| Lubrication | Grease or Oil |
| Precision Rating | P0 P6 P5 P4 |
| Vibration | Z1V1 Z2V2 Z3V3 |
Description
High-quality roller bearing with durable bearing steel construction. Offers reliable performance under various loads and speeds. Available in multiple sizes and precision grades for versatile industrial applications.