Patent application number | Description | Published |
20080203838 | Dynamic Bearing Device - A dynamic pressure generation portion is formed on the outer circumferential surface | 08-28-2008 |
20080226211 | Magnetic encoder and wheel support bearing assembly using the same - A magnetic encoder which can be assembled having a thin-walled structure while securing an excellent detection sensitivity and which can provide an excellent moldability by suitably selecting materials. The magnetic encoder includes a multi-pole magnet having a plurality of opposite magnetic poles alternating in a direction circumferentially thereof, and a core metal for supporting the multi-pole magnet. The multi-pole magnet contains a powdery magnetic material mixed in an amount within the range of 20 to 90 vol. % relative to the total volume of the multi-pole magnet. The multi-pole magnet may be a sintered magnet. | 09-18-2008 |
20090016655 | Fluid Dynamic Bearing Device - A fluid dynamic bearing device in which leakage of a lubricating oil can be prevented is provided at low costs. | 01-15-2009 |
20100301847 | Wheel bearing device with rotation detector - A wheel support bearing assembly for supporting a wheel, which assembly includes an outer member having rolling surfaces and serving as a stationary member; an inner member having rolling surfaces; a plurality of rows of rolling elements interposed between the respective rolling surfaces; a magnetic encoder fitted to the outer peripheral surface of the inner member at a location adjacent one end thereof; an annular sensor holder made of resin and fitted to the outer member through a core metal, the annular sensor holder having a built-in magnetic sensor with an axial gap intervening between it and the magnetic encoder; and a sealing unit arranged on an outer side axially outwardly of the encoder and the sensor for sealing a space between the sensor holder and the inner member. The magnetic encoder includes a plastic magnetic encoder having a plastic magnet defining a to-be-detected portion. | 12-02-2010 |