Abstract: An improved skateboard or roller-skate truck is disclosed containing a novel yoke, base, grommet, wheel and bearing combination which delivers high precision steering, advanced steering control and more precise wheel alignment. The truck comprises a base plate and a yoke having a body portion with an aperture through it. There is a bearing member in the yoke next to the aperture. A post is mounted in the base plate and extends through the aperture in the yoke. A novel resilient grommet with a bearing surface on its face is mounted on the post and engages the bearing member in the yoke to restrict arcuate movements of the yoke. A novel wheel bearing is also disclosed which incorporates paired ball bearing casings with bell-shaped members on the outside of each casing slideably meeting each other inside a skate wheel where the bells self adjust the bearings to accommodate imperfections in the bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.

Abstract: An improved skateboard or roller-skate truck is disclosed containing a novel yoke, base, grommet, wheel and bearing combination which delivers high precision steering, advanced steering control and more precise wheel alignment. The truck comprises a base plate and a yoke having a body portion with an aperture through it. There is a bearing member in the yoke next to the aperture. A post is mounted in the base plate and extends through the aperture in the yoke. A novel resilient grommet with a bearing surface on its face is mounted on the post and engages the bearing member in the yoke to restrict arcuate movements of the yoke. A novel wheel bearing is also disclosed which incorporates paired ball bearing casings with bell-shaped members on the outside of each casing slideably meeting each other inside a skate wheel where the bells self adjust the bearings to accommodate imperfections in the bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.

Abstract: An improved skateboard or roller-skate truck and wheel bearing assembly is disclosed containing an axle bearing yoke, base, grommet, and wheel and bearing combination which delivers improved steering precision, steering control, and wheel alignment. A grommet in the truck includes a bearing surface on a face which engages a bearing member in the yoke and restricts arcuate movements of the yoke and wheels. The contours of the grommet are also unique and contribute to steering control. The wheel and bearing combination incorporates paired bearing casings with bell-shaped members in their ends which meet each other inside a wheel of the board or skate and self-adjust to accommodate imperfections in the bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.

Abstract: An improved skateboard or roller-skate truck and wheel bearing assembly is disclosed containing an axle bearing yoke, base, grommet, and wheel and bearing combination which delivers improved steering precision, steering control, and wheel alignment. A grommet in the truck includes a bearing surface on a face which engages a bearing member in the yoke and restricts arcuate movements of the yoke and wheels. The contours of the grommet are also unique and contribute to steering control. The wheel and bearing combination incorporates paired bearing casings with bell-shaped members in their ends which meet each other inside a wheel of the board or skate and self-adjust to accommodate imperfections in the bearing seat levelness, bearing seat spacing, axle diameter and axle straightness.