Abstract: PCT No. PCT/US79/01056 Sec. 371 Date Dec. 5, 1979 Sec. 102(e) Date Dec. 5, 1979 PCT Filed Dec. 5, 1979A boot seal (48) for sealing a swivel joint (60) having two open sides (70,72) pivotally connecting a first member (50) to a second member (42) extending transversely therethrough includes a body portion (76) enclosing the joint (60), apertures (86) in the body portion (76) for receiving the second member (42), and a flexible bellows portion (82) extending along a portion (52) of the first member (50) in sealing engagement therewith to accommodate full pivotal movement of the joint (60).

Abstract: An anti-friction, recirculating ball bearing assembly of minimum thickness particularly contemplated for use between the structural beams of relatively movable upright sections in a fork lift mast unit, each assembly including a first race member having a substantially flat bearing surface and a bearing carrier plate arranged adjacent the first race member and forming therewith a pair of closed loop paths of elongated configuration, each path having a straight line, bearing portion penetrating entirely through the bearing carrier plate, a recirculating path portion being formed partially by the bearing carrier plate and the bearing surface of the first race member. In one embodiment, a flat bearing surface opposite the first race member is formed by a second race member. In another embodiment, the flat bearing surface opposite the first race member is formed by one of a pair of elements supported in relatively movable relation by the bearing assembly.