Lubricating resin coated with a resin gear grease composition of

The present invention provides apparatus may be provided with noise reduction and both plastic gear actuator means longer life, especially suitable for the HVAC system and the functions of the above-described effects of the actuator at low temperatures. The actuator comprising a stepping motor, a multistage gear device, which base member is provided, the multi-stage gear device includes a rotation shaft mounted to the first stage gear motor, gears are respectively engaged with the lower levels of a gear , the actuator is characterized in that the multi-stage gear device is coated with a resin in the grease composition of any of the at least one gear portion and a bearing portion engaging with the gear, and the grease composition comprising a resin ( kinematic viscosity at a) forming a poly α-olefin oil and 100 deg.] C is 4 ~ 6mm2 / s base oil, (b) a lithium soap thickener, (c) a tackifier, (d) a solid lubricant, and (e) anti-wear agent, the consistency of NLGI consistency composition Nos. 00, No. 0, No. 1 or No. 2.