Abstract: A synchronous drive pulley having pulley cavities which are complementary to a synchronous drive belt which has at least two adjacent rows of teeth which are at oppositely balanced oblique angles to the longitudinal direction of the belt. In addition, the centerlines of the teeth in the adjacent rows are offset from each other by a distance of up to 10% to 90% of their pitch.

Abstract: A synchronous drive belt for use in low speed and high torque applications has a zero pressure angle over a relatively greater portion of the fore and aft flank surfaces of the belt teeth. A pulley is also described which is particularly suitable for use in combination with the belt.

Abstract: A synchronous drive belt for use in low speed and high torque applications has a zero pressure angle over a relatively greater portion of the fore and aft flank surfaces of the belt teeth when used in a belt-pulley combination. A pulley is also described which is particularly suitable for use in combination with the belt.

Abstract: A synchronous drive belt has at least two adjacent rows of teeth which are at oppositely balanced oblique angles to the longitudinal direction of the belt. In addition, the centerlines of the teeth in the adjacent rows are offset from each other by a distance of up to 10% to 90% of their pitch.

Abstract: A bush type mounting device having an outer sleeve (42), an intermediate sleeve (21) and an inner tubular metal portion (12) with a rubber spring (16) connected between the intermediate sleeve (21) and the inner tubular metal portion (12) diametrically dividing the intermediate sleeve (21) into an upper fluid chamber (32) and a lower fluid chamber (30), an inertial damping channel (36) between the outer sleeve (42) and the intermediate sleeve (21) connecting the chambers and an internal hydraulic decoupling device (26) located between the chambers.

Abstract: There is disclosed a rolling lobe fluid spring (10) having an upper retainer (12) and a piston (14) with a tubular air impervious flexible membrane (18) sealingly attached thereto to form the airspring. A radially inextensible fabric restraining cylinder (40) is provided circumferentially around the outer periphery of the flexible membrane. The cylinder (40) shrouds the membrane (18) over at least the entire axial working stroke (WA) of the airspring. The cylinder (40) radially supports and protects the flexible membrane (18).

Abstract: A belt for use in synchronous drives which includes uniformly spaced teeth of similar shape around the inner periphery to engage the toothed gears to form the drive.