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Hub Unit Bearings
Hub unit bearings have to meet increasingly strict requirements that demand lighter weight, greater promotion of fuel efficiency, and enhanced module production systems. Along with the widespread adoption of antilock braking systems (ABS) to ensure stable maneuverability during braking, there is a growing need for our hub unit bearings with a built-in sensor. NSK guarantees high quality of all of our products by repeated, rigorous bench testing and other checks that take full advantage of our cutting-edge technology, which only the top-bearing maker can offer. NSK offers compact and lightweight hub unit bearings with built-in ABS sensors.
Features
Conventional Type
Conventional TypeLong distance between effective load centers (for non-driven wheels);
- Difficult to set preload.
- Complicated mounting process.
- Grease packing required.
HUB I
Compared to conventional type;
- Easy and reliable preload setting.
- Easy mounting process.
- No spacer required.
- No grease packing required.
- Compact.
- Integral high performance seal.
HUB II
Compared to HUB I;
- Easier and more reliable preload setting.
- Easy mounting process.
- No need to press fit into knuckle.
- Integral Sensor rotor is optional. (outer ring rotation type)
HUB III
Compared to HUB II;
- Preset optimum preload. (for non-driven wheels)
- Easy mounting process.
- High rigidity.
- Easy incorporation of ABS sensor.
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- Hub unit bearings with angular passive sensor
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An angular passive sensor is located in the radial space between the swaged shaft end and sensor cover.
Featured- Compact size attained by utilizing the space inside the bearing.
- Improvement of reliability by sealing the sensor part.
- Integral high-output sensor.
- Small fluctuation output by elastic deformation of bearing.
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- Hub unit bearings with integral sensor located between the rows
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The ABS sensor is located between the rows with a very small air gap.
Featured- Compact size achieved by utilizing the space inside the bearing.
- Improved reliability by sealing the sensor part.
- Integral sensor for driven wheels.
- Stabilized sensing under high moment load.
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- Hub unit bearings with multipole magnetic encoder
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A multipole magnetic encoder for active sensor is used for ABS attached to the HUB unit bearings.
Featured- Integrated sensor rotor (encoder).
- For active sensor.
- Utilizing high performance encoder.
- Stabilized sensing at low speed rotation.
- Packed Seal with encoder is available.
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- Hub unit bearings with end-cap type active sensor
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Integration of ABS Active Sensor and Bearing.
Featured- Integrated sensor rotor (encoder).
- Compact size and lightweight achieved by utilizing active sensor.
- Senses, stability at low speed rotation.
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- Double-Row Angular Contact Ball Bearings (HUBI)
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Double-row angular contact ball bearing with integral high performance seal Easier preload setting.
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- Double-Row Tapered Roller Bearings (HUBI)
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Double-row tapered roller bearing with integral high performance seal. Suitable for heavy-duty vehicles.
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- Double-Row Angular Contact Ball Bearings with Outer Mounting Flange (HUBII for Outer Ring Rotation Type)
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Outer ring rotating hub unit bearing with outer flange for mounting the wheel.
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- Double-Row Angular Contact Ball Bearings with Outer Mounting Flange (HUBII for Inner Ring Rotation Type)
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Inner ring rotating hub unit bearing with outer flange for mounting onto the knuckle.
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- Double-Row Tapered Roller Bearings with Outer Mounting Flange (HUBII for Inner Ring Rotation Type)
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Inner ring rotating tapered roller hub unit bearing with integral flange for mounting onto knuckle. Suitable for heavy-duty vehicles.
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- Double-Row Angular Contact Ball Bearings with Inner and Outer Mounting Flange (HUBIII for Driven Wheels)
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Double-row angular contact ball bearing with integral inner and outer mounting flange Easier mounting because of preset preload.
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- Double-Row Angular Contact Ball Bearings with Inner and Outer Mounting Flange (HUBIII for Non-Driven Wheels)
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Double-row angular contact ball bearing with integral inner and outer mounting flange. Easy incorporation of ABS sensor.
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- Double-Row Angular Contact Ball Bearings with Inner and Outer Mounting Flange(HUBIII for Minivehicles)
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Hub unit bearing achieves lightweight by incorporating a unique design specifically for minivehicles.
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- Outboard hub flange
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Achieved optimal design of outside hub flange using FEM to maintain stress concentrations within the permissible range, and for further weight reduction.
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