NK 25/16 Needle Roller Bearing 25x33x16mm
Category: Needle Roller Bearings
Specifications
Inner Diameter (ID)
25
Outer Diameter (OD)
33
Width (W)
16
Overall Size (IDxODxW)
25x33x16
Dynamic Load Rating
15.1 kN
Static Load Rating
24.5 kN
Reference Speed
16 000 rpm
Limiting Speed
18 000 rpm
Cage Material
Sheet Steel
Seal Type
None On Both Sides
Clearance
CN
Precision
Grade 0
Operating Temperature
-30 °C to +120 °C
Mass
0.033 kg
Details
Needle Roller Bearings have long, thin cylindrical rollers resembling needles. They excel at handling high radial loads in tight spaces, making them ideal for automotive transmissions, gearboxes, and machinery. Lightweight, cost-effective, and suitable for high speeds, they distribute loads evenly and require proper lubrication for durability. Single-row variants without an inner ring work well in compact setups with hardened shaft raceways. The outer ring includes two non-separable closure rings that act as flanges to guide the bearing axially.
SPECIFICATIONS
| Inner Diameter | 25 mm | Number of Rows | Single Row |
| Outer Diameter | 33 mm | Cage Material | Sheet Steel |
| Width | 16 mm | Seal Type | None On Both Sides |
| Dynamic Load Rating | 15.1 kN | Clearance | CN |
| Static Load Rating | 24.5 kN | Precision | Grade 0 |
| Fatigue Load Limit | 2.9 kN | Min Temperature | -30 °C |
| Reference Speed | 16 000 rpm | Max Temperature | +120 °C |
| Limiting Speed | 18 000 rpm | Size Standard | Metric System |
| Rolling Element | Roller | Mass | 0.033 kg |
FEATURES AND BENEFITS
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High load-carrying capacity.
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Low cross-sectional height.
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Support both radial and axial loads.
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Well suited for applications with limited radial space.
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