... high abrasion & excellent weather resistance engineering plastics gearApplicability:GY-3RA is compatible with SEIKO's printer mechanism LTPF347F- ... for mini-thermal receipt printer, thermal cash register, etc.GY-3RB Functions & Parameters: ItemParametersModelGY-3RB-AP/AF(AF ... machine noise60dB(Max)Weight317gPeriphery dimensionL=115.5mm,W=73mm,H=45mm,L(ML)=190mm,L(CL)=190mmCompatibilitySEIKO's LTPF347F ...