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Automotive Bearings-Wheel Bearings
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Oilfield bearings
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Automotive bearings-Repair steering gear bearings
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Ceramic bearings with silicon nitride balls
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FAG brand bearings
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Automotive Bearings-Gearbox Bearings
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Bearings for UAVs
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SKF brand bearings
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Bearings for agricultural machinery
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Mountain bike bearings
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Bearings for linear guides
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Bearings for metallurgical rolling mills
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Stainless steel bearings
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Customized bearings
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Bearings for wind power
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Bearings for robots and manipulators
High speed corrosion resistant bearings
High-speed bearings are rolling bearings whose Dmn value exceeds 1.0×10⁶ mm·rpm. Their performance characteristics are determined by the product of the average diameter Dm and the rotational speed of the inner ring n; They are designed for high precision and high speed applications.
Description
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Product Description
High-speed bearings are rolling bearings whose Dmn value exceeds 1.0×10⁶ mm·rpm. Their performance characteristics are determined by the product of the average diameter Dm and the rotational speed of the inner ring n; They are designed for high precision and high speed applications.
The bearing consists of an inner ring, an outer ring, balls and a cage. The inner and outer rings are made of high chromium steel, the cage is often made of nylon to reduce friction torque. During installation, it is necessary to take into account the change in dimensions from normal to high temperature, as well as the influence of centrifugal deformations. Precision dynamic balancing is used to enhance the stability of the shaft support system, and a hollow shaft design is used to balance stiffness and mass. Surface treatment uses grinding to reduce friction, optimize raceway profiles, and control roughness and waviness. Typical applications include new energy vehicle traction motors, wind turbine main shafts and aerospace equipment. Ceramic ball bearings are already used in some brands of electric vehicles to counteract electrical erosion. Cage material has evolved from copper alloys and engineered plastics to polyetheretherketone (PEEK), carbon fiber-reinforced composites, and graphene-modified materials, and is moving toward smart materials with embedded shape memory alloys or microsensors.
High-speed ball bearings, being a type of rolling bearings, are mainly composed of four basic elements: inner ring, outer ring, balls and cage. The inner and outer rings and balls are usually made of high quality materials such as high chromium steel to provide high strength, high hardness and high wear resistance. The cage is usually made of nylon to ensure low friction torque.
High-speed bearings are key components in the field of electric drives for new energy vehicles. Their characteristics directly affect the reliability of the electric drive; they must meet challenges such as high motor speeds, high loads, optimization of NVH (noise, vibration, harshness) and electrical erosion. Hybrid ceramic ball bearings are one solution to overcome these problems. They use steel inner and outer rings and ceramic rolling elements, which improves wear resistance, reduces friction losses and increases the maximum speed. Ceramic rolling elements also provide electrical insulating properties, preventing electrical erosion. A number of manufacturers produce hybrid ceramic ball bearings for this application.
High-speed precision bearings are used in machine tool spindles, aircraft, turbine equipment and other applications where high precision and high rotation speed are required.
| Model | S685ZZ | SMR126ZZ | S6802ZZ |
| Quantity (sets) | 600000 | 52000 | 19000 |
| Dimensions | 5x11x5 | 6x12x4 | 15x24x5 |
| Rotational speed | 45000 | 43000 | 15000 |
| Material | Stainless steel | ||
| Accuracy class | P6 | ||
| Noise level | MULTEMP SRL | ||
| Lubrication | V2 | ||
| Corrosion resistance | Salt fog test - over 96 hours | ||
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