(1) Suspension was independent with sealed roller chain drive to each rear wheel.

(2) The paper described The reliability optimum design of roller chain gearing.

(3) Conveying equipment which comprises the system can be roller chain conveyor, roller conveyor and platform carriage conveyor.

(4) Tax, as the economic roller chain and the main source of the fiscal revenues , stand in the breach especially.

(5) Semi - automatic roller chain give paper, pairs of side shelf stipulate location, guarantee, give paper print accurately.

(6) So it is necessary to develop a new kind of roller chain drive to improve the transmission performances of roller chain mechanism.

(7) However, the chordal action and the meshing impact effect of roller chain drive damage the synchronization and uniformity of transmission.

(8) The present invention is one kind of automatic assembling mechanism for middle piece of roller chain.

(9) A series of nonlinear equations are used to calculate the center distance of roller chain drive.

(10) The method to calculate value of crushing hole in roller chain plate is introduced.

(11) However, because of the chordal action and the meshing impact effect, conventional roller chain drive was not suitable for high-speed transmission.

(12) The most important is, the renewable energy has incomparably superior short – roller chain advantages.