NKXR 40

NKXR 40 · Product image

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NKXR 40 · Technical drawing

Brand
QIBR
Alternative brand
SKF
Rolling element type
Roller
Measurement system
Metric
Precision level
P0(RBEC-1)
Inner envelope circle
40 mm
Outer diameter
52 mm
Total width
32 mm
Width of thrust part
13 mm
Lubrication hole position
10 mm
Bore diameter of thrust part
40 mm
Flange diameter
60.1 mm
Diameter of stamped steel cover
/
Chamfer dimension
0.6 mm
Basic dynamic load rating (radial)
26.4 kN
Basic static load rating (radial)
51 kN
Basic dynamic load rating (axial)
43 kN
Basic static load rating (axial)
137 kN
Limit load (radial)
6.3 kN
Limit load (axial)
13.7 kN
Min. load factor
0.0015
Reference speed
2400 rpm
Limiting speed
5000 rpm
Weight
0.2 kg
Temperature
-20 °C to +110 °C
Seal type
Open Type

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Description

Composed of radial needle roller bearings and cylindrical roller thrust bearings, these bearings are designed without an inner ring but can be used in combination with an inner ring when the shaft cannot be hardened and ground. They can only support axial loads and locate the shaft axially in one direction. For short shafts and when the length change due to thermal expansion is relatively small, they can be mounted in a back-to-back configuration.

QIBR - NKXR 40 Needle Roller Bearing Advantages and Applications

QIBR - NKXR 40 Needle Roller Bearing Characteristics

NKXR 40 Needle Roller Bearing, high reliability, strong adaptability. NKXR 40 Needle Roller Bearing, can withstand radial loads and small unidirectional axial loads, suitable for mechanical equipment with high requirements for stability.

NKXR 40 Needle Roller Bearing Features and Advantages

High load capacity: Needle bearings can withstand significant axial and radial loads, making them suitable for various heavy machinery and equipment.

High Precision: The manufacturing precision of needle bearings is high, with low rotational inertia, enabling high-precision operation.

Low Friction Coefficient: With a low friction coefficient, needle bearings effectively reduce frictional resistance during operation, minimizing energy loss.

Compact Structure and Lightweight: The overall structure is compact and lightweight, making it suitable for support structures with limited radial installation space.

Application: Needle roller bearings have a wide range of applications in industries such as automotive, aerospace, industrial machinery, construction and agricultural equipment, home appliances, shipbuilding, and medical devices.

QIBR - NKXR 40 Needle Roller Bearing Optimization

Structural Optimization: Adjusting the arrangement of needles or the contact angle based on customer requirements and bearing operating conditions.

Cage Material: Material selection for the cage can be customized based on customer needs, including low carbon steel, stainless steel, PA66, etc.

High-Performance Materials: Choosing suitable materials based on customer requirements, such as DC03M, C15Mn, 16MnCr5, etc.

Heat Treatment: Carburizing or carbonitriding and quenching treatment of the outer ring and cage according to the bearing's operating conditions.

More customization: QIBR can design and optimize bearings based on customer operating conditions and requirements.

QIBR - NKXR 40 Needle Roller Bearing Quality Control

Dimension measurement: Using various high-precision instruments to measure multiple dimensions of the bearings, achieving a maximum precision of 0.001mm.

Rotation accuracy: Measuring small defects or deviations on the bearing surface with a micrometer, with a measurement precision of up to 0.001mm.

Hardness measurement: Surface hardness is measured using a hardness tester, with an accuracy of ±0.5HRC.

Metallographic analysis: Internal metallographic structure is analyzed using a professional metallographic microscope.

Geometric tolerance: A contour gauge measures the bearing's geometric shape and relative position.

Noise monitoring: A vibration meter monitors vibration during operation to obtain noise data.

Raw material control: Steel and parts are sourced from ISO 14001-certified suppliers, ensuring product stability while promoting sustainable development.

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