The transmission capacity listed on the product page is the transmission capacity when the oil temperature is stable during continuous operation at a load factor of 100% and using recommended oil.

Therefore, when starting up in a cold environment or when operating for short periods with frequent starts and stops and where the oil temperature does not rise, the fluidity of the lubricating oil decreases and stirring resistance increases, resulting in a decrease in efficiency and the transmission capacity listed on the product page not being achieved.

As a rough guideline, please consider the following abilities with the following discounted.

Discount rate when oil temperature is not stable (reference value)

*Please refer to the worm reduction ratio for the TERUS combination in the characteristics table.

Self-locking is the effect of preventing the input shaft from rotating when an attempt is made to rotate the reducer from the output shaft. Self-locking is also the effect of allowing the input shaft to rotate but requiring a large force from the output shaft.

These are characteristics specific to worm reducers. Their effectiveness is determined by the lead angle of the worm gear, the condition of the tooth surface, and the lubricant.

With our standard EWJGM, EWGM(R), SWJGM(R), SWGM(R), and TDGM(R) series, you can expect self-locking when stationary if the reduction ratio is 1/60.

*Notes about self-locking and self-locking properties

• (1) The effectiveness of self-locking may decrease if it is subjected to shock or vibration.
  Self-locking cannot be guaranteed, so if reliable stopping or holding is required, be sure to install a separate holding device such as a brake.
• (2) In applications with extremely large load inertia (traveling or swinging devices, etc.), the self-locking mechanism can cause sudden braking, which can be extremely dangerous. For such applications, select a reduction ratio of 1/10 to 1/20.