NU 1988 MA
- Brand
- QIBR
- Alternative brand
- SKF
- Rolling element type
- Roller
- Measurement system
- Metric
- Precision level
- P0(RBEC-1)
- Outer diameter
- 600 mm
- Inner diameter
- 440 mm
- Total width
- 74 mm
- Inner diameter tolerance
- 0 to -45 ㎛
- Outer diameter tolerance
- 0 to -50 ㎛
- Width tolerance
- 0 to -450 ㎛
- Inner diameter of outer ring
- 544 mm
- Outer diameter of inner ring
- /
- Chamfer dimension1
- 4 mm
- Chamfer dimension2
- 4 mm
- Weight
- 53 kg
- Load direction
- Radial
- Temperature
- -30℃ to +110℃
- Seal type
- Open type
- Ring material
- 52100
- Rolling element material
- 52100
- Basic dynamic load rating
- 1060 kN
- Basic static load rating
- 2000 kN
- Fatigue load limit
- 170 kN
- Reference speed
- 1100 rpm
- Limiting speed
- 1400 rpm
Tell us your operating requirements and required quantity.
Description
Single row cylindrical roller bearings include high radial load capacity, ability to accommodate axial displacement in one direction, low friction, and relatively high speed capabilities, making them suitable for a wide range of industrial applications such as motors, pumps, gearboxes, and machine tools. Additionally, their design simplicity and ease of assembly contribute to their widespread use in various machinery and equipment.
QIBR - NU 1988 MA Cylindrical Roller Bearing Advantages and Applications
NU 1988 MA Cylindrical Roller Bearing, high stiffness, strong adaptability, Inner diameter is 440 mm,Outer diameter is 600 mm,Total width is 74 mm,Weight is 53 kg, suitable for machine tools, rolling mills, wind turbine main shafts and paper machines, etc., and is the most widely used bearing in working conditions with high stiffness requirements.
QIBR - NU 1988 MA Cylindrical Roller Bearing Characteristics
NU 1988 MA Cylindrical Roller Bearing, long service life, high cost performance. NU 1988 MA Cylindrical Roller Bearing, can bear radial load and certain axial load at the same time, suitable for mechanical equipment with high stability requirements.
NU 1988 MA Cylindrical Roller Bearing Features and Advantages
High load capacity: Designed with a high radial load capacity, suitable for heavy loads and shock loads, making it ideal for high-load conditions.
Low Friction Coefficient: The line contact between the rollers and raceways results in a low friction coefficient, making it suitable for high-speed operation.
Separable Design: The inner and outer rings can be separated, facilitating easy installation and disassembly, ideal for equipment requiring frequent maintenance.
High Adaptability: Capable of accommodating changes in relative position due to thermal expansion or installation errors, suitable as a free-end bearing.
Application: Extensively used in the automotive industry, industrial machinery, motors and power generation equipment, household appliances, aerospace, medical equipment, railways and transportation, construction machinery, wind energy, and renewable resources.
QIBR - NU 1988 MA Cylindrical Roller Bearing Optimization
Selectable Precision, Vibration, and Noise Levels: Options include P6, P5 for precision, V2, V3 for vibration, and Z2, Z3 for noise.
Cage Material: The cage material can be chosen based on operating conditions, with options including steel, brass, or nylon.
Grease Replacement: Select lubrication according to bearing working requirements, such as SKF LGMT 2, Timken GR217, or Shell Gadus S2 V220AC.
Optimized Roller Profile: Depending on operating conditions, logarithmic profile curves can be used to optimize the roller profile, reducing stress concentration between rollers and raceways, and enhancing load capacity and service life.
More customization: QIBR can design and optimize bearings according to customer drawings and operating conditions.
QIBR - NU 1988 MA Cylindrical Roller Bearing Quality Control
Dimension measurement: Various high-precision instruments are used to measure multiple dimensions of the bearing, with an accuracy of up to 0.001mm.
Rotation accuracy: A dial gauge measures minor surface flaws or deviations, with measurement accuracy reaching 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.
Features & benefits
By enhancing the design with reinforced structure, incorporating logarithmic profile rolling elements, and internal optimization, the bearing is endowed with advantages such as high load capacity, low friction coefficient, minimized resistance, leading to significantly increased bearing lifespan and reduced maintenance costs.
The outer ring is made of high-purity special high-quality bearing steel processed by high-speed forging + cold rolling process, and the raceway surface is carbonitrided.
Downloads
Showing 4 of 7
Bearing condition questionnaire
Bearing Condition Questionnaire
Agency document
Agent Application Form
Product brochure
Slewing & Cross Roller Bearing Catalog
Product brochure
Bearing Unit Catalog
Showing 4 of 7
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