QRE 45025 UU

QRE 45025 UU · Product image

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QRE 45025 UU · Technical drawing

Brand
QIBR
Alternative brand
THK
Rolling element type
Roller
Measurement system
Metric
Weight
6.6 kg
Outer diameter
500 mm
Inner diameter
450 mm
Total width
25 mm
Chamfer dimension
1 mm
Raceway diameter
476.6 mm
Oil hole size
3.5x1.6 mm
Load direction
Axial and radial
Basic dynamic load rating
61.7 kN
Basic static load rating
182 kN
Type
RE UU
Rolling element material
AISI 52100
Ring material
AISI 52100
Seal type
Closed type
Temperature
-30 ℃ to +80 ℃

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Description

The crossed roller bearing is a special type of bearing in which the inner ring is split and the outer ring rotates. Since the separated inner ring or outer ring is equipped with rollers and spacer rings, which are fixed together with the cross roller ring to prevent separation from each other, it is easy to install the cross roller bearing. Since the rollers are arranged in a cross, only one set of crossed roller bearings can bear loads in all directions. Compared with standard bearings, the rigidity is increased by 3 to 4 times. At the same time, because the inner ring or outer ring of the crossed roller bearing is a separate structure, the bearing gap can be adjusted, and even if the preload is applied, high-precision rotational movement can be obtained. Moreover, due to its special structure, it is usually used as an articulated bearing in industrial robots.

QIBR - QRE 45025 UU Cross Roller Bearing Advantages and Applications

QRE 45025 UU Cross Roller Bearing, low friction, strong anti-overturning ability, Inner diameter is 450 mm,Outer diameter is 500 mm,Total width is 25 mm,Weight is 6.6 kg,suitable for surgical robots, spacecraft, high-end automobile seat adjustment systems, grinders and optical platforms, etc., is the most widely used bearing in working conditions with high requirements for impact resistance.

QIBR - QRE 45025 UU Cross Roller Bearing Characteristics

QRE 45025 UU Cross Roller Bearing, saves space and has wide applicability. QRE 45025 UU Cross Roller Bearing, can bear radial load, axial load and certain tilt load at the same time, suitable for mechanical equipment with high requirements for stable operation.

QRE 45025 UU Crossed Cylindrical Roller Bearing Product Features and Advantages

High load capacity: It can withstand large radial and axial loads and is suitable for high-load application scenarios.

Small size and large load: The cross-arranged rollers can effectively distribute the load, and the bearing provides greater load capacity at a smaller size.

Low friction: The contact surface between the cylindrical roller and the raceway is large, the friction coefficient is low, and energy loss and heat generation are reduced.

High precision: The bearing structure is optimized to improve the rotation accuracy of the bearing and is suitable for applications requiring high precision.

Application: It has a wide range of applications in industrial robots, machine tools and CNC machine tools, aerospace, medical equipment, optical instruments, IC manufacturing equipment and other fields.

QIBR - QRE 45025 UU Crossed Cylindrical Roller Bearing Optimization

High-performance materials: The bearing material can be replaced according to the working requirements of the bearing, such as stainless steel, silicon-manganese steel, etc.

Structural optimization: The one-piece inner ring and outer ring are designed with mounting holes, without flanges and bearing seats, and easy to install.

Sealing structure: The sealing structure can be selected according to the working environment of the bearing, such as FKM/fluoro rubber seals for high temperature resistance, hydrogenated nitrile rubber (HNBR) seals for low temperature resistance, and polyetheretherketone (PEEK) seals for chemical resistance, to ensure the heat resistance, oil resistance, and chemical resistance under different working conditions.

Grease replacement: QIBR technicians can recommend grease according to the working conditions of the bearing or replace grease according to customer needs, such as Mobil, Shell, SKF, Fuchs and other brands.

More customization: QIBR can design and optimize the bearing structure and process according to customer requirements for drawings and bearings.

QIBR - QRE 45025 UU Crossed cylindrical roller bearing quality control

Dimension measurement: Use a variety of professional high-precision instruments to measure multiple dimensions of the bearing, with the highest accuracy of up to 0.001mm.

Rotation accuracy: Use a micrometer to measure small flaws or deviations on the bearing surface, with a measurement accuracy of up to 0.001mm.

Hardness measurement: Use a hardness tester to measure the surface hardness of the bearing, with a measurement accuracy of up to ±0.5HRC.

Metallographic analysis: Analyze the internal metallographic structure of the metal through a professional metallographic microscope.

Geometric tolerance: Use a profilometer to measure the bearing geometry and relative position.

Noise monitoring: Use a vibration meter to monitor the vibration during operation and obtain noise data.

Raw material control: Purchase steel and parts from suppliers certified by ISO 14001 to ensure product stability while promoting sustainable development.

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