MR526828+MI425228

Inner diameter:: 82.55 mm

Outer diameter:: 107.95 mm

Width:: 44.45 mm

Mass:: 1670 g

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Brand : QIBR

Rolling element type : Roller

Measurement system : Metric

Precision level : P0(RBEC-1)

Diameter under rollers (Fw) : 82.55 mm

Outer diameter (D) : 107.95 mm

Width (C) : 44.45 mm

Chamfer dimension (r) : 2 mm

Basic dynamic load rating : 107.2 KN

Basic static load rating : 192 KN

Limiting speed (Oil) : 4000 rpm

Weight : 1670 g

Load direction : Radial

Number of rolling element rows : Single Row

Bearing Type : Solid collar needle roller bearing

Lubrication : Required

Bore : 66.675 mm

Width inner ring (B) : 44.7 mm

Permissible axial displacement : 3 mm

Outer ring : With

Applications : Agricultural, pumps and general engineering applications.

Ring material : Steel

Rolling element material : Steel

Bore type : Round

Bearing clearances,radial : CN

Temperature : -40 °C to +120 °C

Seal type : Open Type

Download MR526828+MI425228 Drawing

MR526828+MI425228 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 - MR526828+MI425228 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 - MR526828+MI425228 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.