Needle Roller Bearings
NK needle roller bearings have no inner ring, only needle roller and cage assembly.
Model number: NK25/16
Size: 25x33x16mm
Materials: chrome steel GCr15
Weight: 0.033KG
Lead Time: 3-5 days
Specification
NK25/16 Needle roller bearing without inner ring, with an inner diameter of 25mm, outer diameter of 33mm, and width of 16mm. It features high radial load capacity and low cross-sectional height. Suitable for applications where the shaft diameter can be hardened and ground, and space is limited, such as tap grinding machines, motorcycle engines, and transmission systems.
Technical parameter:
| Model Number | NK25/16 |
| Size | 25x33x16 mm |
| Weight | 0.033KG |
| Material | chrome steel GCr15 |
| Clearance | C2 C0 C3 C4 |
| Precision Grade | p0 p6 p5 p4 |
| Dynamic Load Rating | 16.8 lbf |
| Static Load Rating | 22.4 lbf |
| MOQ | 50 PCS |
| Package | plastic bag or single box+Carton+Pallet |
| Lubrication | Pre-lubricated with High-Performance Grease |
| Temperature Range | -20°C to +120°C |
| Lead Time | 3-5 Days |
A brief introduction:
The NK needle roller bearing is a special type of needle roller bearing whose model number begins with "NK" followed by the size parameter. This bearing is characterized by no inner ring, only needle roller and cage assembly, suitable for specific installation needs. NK needle roller bearings are usually used to meet specific installation requirements, such as split wide inner ring design, easy to install and disassemble, and both sides of the inner ring with clamping rings, can better play a complete set and fit.
Structural features:
1. No inner ring design: NK needle roller bearings have no inner ring, only needle roller and cage components, suitable for specific installation environments.
2. Split wide inner ring: This design is easy to install and disassemble, especially suitable for frequent replacement or maintenance occasions.
3. Inner ring with clamping ring: both sides of the inner ring with clamping ring, can be better fixed and used together.
Related Products
| Model No. | d | D | H | m |
| NK25/16 | 25 mm | 33 mm | 16 mm | 32.6 g |
| NK25/20 | 25 mm | 33 mm | 20 mm | 42 g |
| NK26/16 | 26 mm | 34 mm | 16 mm | 34 9 |
| NK26/20 | 26 mm | 34 mm | 20 mm | 42 g |
| F-45397.2 | 27 mm | 42.86 mm | 25.4 mm | 118.7 g |
| NK28/20 | 28 mm | 37 mm | 20 mm | 52.2 g |
| NK28/30 | 28 mm | 37 mm | 30 mm | 82 g |
| F-201379 | 28.58 mm | 41.28 mm | 25.4 mm | 102 g |
| F-110036 | 28.58 mm | 41.28 mm | 25.4 mm | 107.9 g |
| F-45779 | 28 59 mm | 46 04 mm | 31.75 mm | 198.3 g |
| NK29/20 | 29 mm | 38 mm | 20 mm | 50 g |
| NK29/30 | 29 mm | 38 mm | 30 mm | 84.3 g |
| NK30/20 | 30 mm | 40 mm | 20 mm | 61 g |
| NK30/30 | 30 mm | 40 mm | 30 mm | 92.4 g |
| NK32/20 | 32 mm | 42 mm | 20 mm | 64 g |
| NK3230 | 32 mm | 42 mm | 30 mm | 102 g |
| F-525212 | 32.77 mm | 49.21 mm | 28.58 mm | 171.2 g |
| F-51201 | 33 mm | 48 mm | 15 mm | 70.9 g |
| F45898 | 33 mm | 50.98 mm | 20 mm | 122.1 g |
| NK35/20 | 35 mm | 45 mm | 20 mm | 69.4 g |
Application scenario
NK needle roller bearings are widely used in various mechanical equipment, especially where compact design is required. Because of their compact structure, easy installation and maintenance, they are often used in machine tools, metallurgical machinery, textile machinery and printing machinery.
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