Abstract: Abrasion powder from the clutch retainer 28a is prevented from getting mixed into the grease used for lubricating the roller clutch 10, and the grease is prevented from becoming exposed to high temperatures, and so degrading too quickly is prevented in the grease. Specifically, a retaining piece 33 is formed at one end of the clutch retainer 28a in the inner-diameter side portion thereof, and a retaining collar section 34 is formed around the inner peripheral surface of the other end of the clutch retainer 28a. The inner ring 21 for the clutch is held from both sides in the axial direction between the fitting portion 35 at the tip end of the retaining piece 33 and the retaining collar section 34.

Abstract: A wheel-driving unit and a method for manufacturing the same. The circumferential-direction widths of teeth respectively constituting a male spline portion (47a) and a female spline portion (48a) are varied gradually in the respective axial directions of the male and female spline portions (47a), (48a). The directions where the widths of the teeth respectively constituting the male and female spline portions (47a), (48a) increase in the axial direction are set so as to differ from each other, whereby the spline teeth are engaged with each other in a wedge-like manner. A retaining ring (33b) is bridgingly interposed between the outer peripheral surface of the outer end portion of the spline shaft (17) and the inner peripheral surface of the near-to-outer-end portion of the spline hole (14) to thereby prevent the spline shaft (17) from slipping out of the spline hole (14).

Abstract: It is an object of the invention to provide a wheel-driving unit which is small in size and weight, can facilitate its assembling operation, and can prevent generation of jarring teeth striking sounds, and a method for manufacturing the same. The circumferential-direction widths of teeth respectively constituting a male spline portion (47a) formed in the outer peripheral surface of a spline shaft (17) and a female spline portion (48a) formed in the inner peripheral surface of a spline hole (14) are varied gradually in the respective axial directions of the male and female spline portions (47a), (48a). The directions where the widths of the teeth respectively constituting the male and female spline portions (47a), (48a) increase in the axial direction are set so as to differ from each other, whereby the spline teeth respectively constituting the male and female spline portions (47a), (48a) are engaged with each other in a wedge-like manner.

Abstract: Abrasion powder from the clutch retainer 28a is prevented from getting mixed into the grease used for lubricating the roller clutch 10, and the grease is prevented from becoming exposed to high temperatures, and so degrading too quickly is prevented in the grease. Specifically, a retaining piece 33 is formed at one end of the clutch retainer 28a in the inner-diameter side portion thereof, and a retaining collar section 34 is formed around the inner peripheral surface of the other end of the clutch retainer 28a. The inner ring 21 for the clutch is held from both sides in the axial direction between the fitting portion 35 at the tip end of the retaining piece 33 and the retaining collar section 34.

Abstract: A rolling-bearing unit for wheel support comprising an outer-race with a double row of tapered and concave-shaped outer-ring raceways, a hub comprising a hub body with an outside inner-ring raceway and a separate inner-race with an inside inner-ring raceway, and a tapered rollers between the inner-ring raceways and the outer-ring raceways respectively, the hub body formed with a cylindrical section, and a support-step section which the separate inner-race is fitted onto, the cylindrical section plastically deformed radially outward to form a crimped section, the support-step section formed with a step surface, one end surface of the separate inner-race abutted to the step surface while the other end surface retained by the crimped section, the inner-ring raceway of the separate inner-race connected to the side surface of the large-diameter-side collar section through a connecting portion which is provided with a grinding-relief groove, and wherein the contact area between the other end surface of the separate

Abstract: It is an object of the invention to provide a wheel-driving unit which is small in size and weight, can facilitate its assembling operation, and can prevent generation of jarring teeth striking sounds, and a method for manufacturing the same.

Abstract: A rolling-bearing unit for wheel support comprising an outer-race with a double row of tapered and concave-shaped outer-ring raceways, a hub comprising a hub body with an outside inner-ring raceway and a separate inner-race with an inside inner-ring raceway, and a tapered rollers between the inner-ring raceways and the outer-ring raceways respectively, the hub body formed with a cylindrical section, and a support-step section which the separate inner-race is fitted onto, the cylindrical section plastically deformed radially outward to form a crimped section, the support-step section formed with a step surface, one end surface of the separate inner-race abutted to the step surface while the other end surface retained by the crimped section, the inner-ring raceway of the separate inner-race connected to the side surface of the large-diameter-side collar section through a connecting portion which is provided with a grinding-relief groove, and wherein the contact area between the other end surface of the separate

Abstract: A compact and light weight axle unit with good durability and reliability for driving a vehicle wheel is provided wherein the splined bore 28 of the hub 6a is engaged with the splined shaft 30 of the drive shaft member 29, and a stop ring 35 is held between the outer engagement groove 25 on the inner peripheral surface of the splined bore 28 and the inner engagement groove 24 on the outer peripheral surface of the splined shaft 30 to prevent the splined shaft 30 from being removed.

Abstract: A compact and light weight axle unit with good durability and reliability for driving a vehicle wheel is provided wherein the splined bore 28 of the hub 6a is engaged with the splined shaft 30 of the drive shaft member 29, and a stop ring 35 is held between the outer engagement groove 25 on the inner peripheral surface of the splined bore 28 and the inner engagement groove 24 on the outer peripheral surface of the splined shaft 30 to prevent the splined shaft 30 from being removed.

Abstract: An outer ring 4 fitted into a stationary housing 1 is clamped for axial positioning between a stop ring 12 and the stepped face 10 of the step portion 9 on the inner peripheral surface of the housing 1. A sensor 20 is carried in a sensor carrier 19 having a cover 21, such that the cover 21 is fitted into the step portion 9 on the inner peripheral surface thereof by way of interference fit, and that the cover 21 has an abutting portion 23 against the stepped face 10.

Abstract: A hub (4) for supporting a non-driven road wheel has a hole section formed to have an opening in the central portion at either end of the hub. A tone wheel (19) is fitted onto the shoulder portion of an inner ring (5) fixed to the axially inner end of the hub 4, and has a function to work as a seal member, such that the opening at the axially inner end of the hole (8, 63a) is covered. In addition, a cap (27) is fitted into the axially outer end of the hub (4) to cover the opening at the axially outer end of the hole (8, 63b).

Abstract: A compact and light weight axle unit with good durability and reliability for driving a vehicle wheel is provided wherein the splined bore 28 of the hub 6a is engaged with the splined shaft 30 of the drive shaft member 29, and a stop ring 35 is held between the outer engagement groove 25 on the inner peripheral surface of the splined bore 28 and the inner engagement groove 24 on the outer peripheral surface of the splined shaft 30 to prevent the splined shaft 30 from being removed.

Abstract: A clutch release bearing apparatus comprises a clutch release bearing and a holding mechanism therefor. At a location of the holding mechanism where a driving member applies a driving force for clutch releasing, a shift member shiftable in a direction perpendicular to an axis of the bearing is disposed.

Abstract: In a sealing device for a rolling bearing wherein the clearance between an outer race and an inner race is sealed by a sealing plate fixed to the outer race side, the sealing plate has on its inner periphery an axially extending inner lip, a radially extending outer lip and an intermediate lip extending between said two lips and having the tip end thereof divided into two directions. The inner race has on its outer peripheral surface adjacent to the end thereof a concave seal groove having an inner shoulder and an outer shoulder having a diameter smaller than that of the inner shoulder. The inner lip of the sealing plate cooperates with the inner shoulder of the seal groove to form an inner sealing portion between the inner lip and the inner shoulder. The outer lip of the sealing plate cooperates with the outer shoulder of the seal groove to form an outer sealing portion between the outer lip and the outer shoulder.

Abstract: Bearing apparatus for gear type power transmission systems comprising a gear casing containing a lubricating oil, gearing for power transmission retained in the casing and a bearing carried in the casing for rotatably supporting the gear shaft employs a seal for the bearing containing a lubricant so that the bearing is lubricated separately and independently of the oil in the casing.