Product Details:
This series includes: NGW-QJ42, NGW-QJ52, NGW-QJ62, NGW-QJ72, NGW-QJ82, NGW-QJ92
1 Overview
The NGW-QJ planetary gear reducer is a specialized reducer designed based on the NGW planetary gear reducer. It not only retains the main advantages of the original NGW standard (J81799-76), but is also suitable for installation in situations where radial loads are directly transmitted at an angle to the horizontal line. This reducer is mainly used in the main transmission reducer of cement machinery ball mills, and can also be used as other similar transmission devices.
This reducer has the following advantages:
(1) This reducer has a small volume and light weight. High load-bearing capacity, long service life, and smooth operation. Advantages such as low noise, and both input and output shaft ends can withstand large radial loads;
(2) Working environment temperature: 40-45 ℃;
(3) Input speed: ≤ 1500r/min
(4) Transmission efficiency: η=0.94-0.96;
(5) Working tilt angle: 45 ° -55 ° (as shown in Figure 3-27);

6) Can operate in both forward and reverse directions;
(7) Lifespan: not less than 35000, 40000 hours:
(8) Operating condition: continuous type; (9) Lubrication: Equipped with a self circulating lubrication system.
2. Model significance

3. Technical parameters and carrying capacity

4. Appearance and installation dimensions

（2） Selection method
When selecting NGW-S planetary reducer, the calculation should be based on the following formula according to the usage conditions:
NX=NS1K1KW or MX=MSK1K2
In which Nx - Select input power in the formula
Ns - actual input power
Mx -- Select output torque
Ms. - Actual output torque
K1- Usage coefficient
K2- Coefficient related to lubrication conditions When the gearbox is lubricated under cyclic conditions, K2=1. When the gearbox is lubricated with oil, the recommended K2 values are shown in the table below
Usage coefficient K1

Coefficient K2 when using oil lubrication pool