Product Description:This series of reducers adopts a modular design concept, and through optimized design, each component has equal strength, high load-bearing capacity, high reliability, and high efficiency. All gears adopt grinding technology and tooth profile modification technology. The square box body increases the surface area, and the reasonable selection of fans and coolers improves the thermal power of the gearbox; The installation of output shaft types is diverse, which is conducive to customer selection. This series of products are industrial gearboxes for various industries.
The NBD reducer NCD planetary reducer is a single-stage planetary gear, and the structural characteristics of the NBD planetary gear reducer are as follows: the planetary gear reducer mainly consists of a sun gear, a planetary gear, an inner ring gear, and a planetary carrier. In order to evenly distribute the load of the three planetary gears, a toothed floating mechanism is used, which means that the sun gear or planet carrier floats, or both the sun gear and planet carrier float simultaneously. The gears in the reducer are spur involute cylindrical gears. Has the following characteristics:

1. The NBD400 reducer has a small volume and light weight. Under the same conditions, it is more than 1/2 lighter in weight and 1/2 to 1/3 smaller in volume than ordinary involute cylindrical gear reducers.

2. NBD400 reducer has high transmission efficiency: single-stage planetary gear reducer reaches 97% to 98%; The two-stage planetary gear reducer reaches 94% to 96%; The three-stage planetary gear reducer is 91% to 94%.

3. The transmission power range of NBD400 reducer is large: it can range from less than 1KW to 1300KW, or even larger.

4. NBD400 reducer has a wide transmission range: i=2.8-2000

5. NBD400 reducer has strong adaptability and durability. The main components are made of high-quality alloy steel that has been carburized, quenched, or nitrided. The planetary gear reducer runs smoothly, has low noise, and can be used for more than 10 hours

The load-bearing capacity of the reducer is limited by two aspects: mechanical strength and thermal balance allowable power per kilometer. Therefore, the selection of the reducer must be done through two power meters.

First, select the reducer according to the allowable nominal power P1 of the mechanical strength of the reducer. If the relative error between the input speed of the reducer and one of the three speeds (500, 1000, 750) in the load capacity table does not exceed 4%, a reducer of equivalent specifications can be selected based on the nominal power at that speed; If the relative error of the spit speed exceeds 4%, the nominal power of the reducer should be selected based on the practical speed conversion. Then verify and reduce the allowable power of vulgar thermal balance.

If the shaft extension not only bears torque but also axial and radial loads, the safety factor of the shaft extension and the bearing life should be checked.

1、 NBD400 planetary gearbox product overview:

The transmission structure of a planetary gearbox is a combination of the current efficiency of gear reducers. Its basic transmission structure consists of four parts: 1. Sun gear 2. Planetary gear (combined with the planet carrier) 3. Internal gear ring 4. Stage gear. The NBD planetary gearbox is a two-stage transmission, consisting of two sets of transmission structures. It is a new type of planetary gearbox, which is an enhanced version of the NGW planetary gearbox. The box body is made of ductile iron, which has a large load-bearing torque. The main components are thickened, and the overall load-bearing capacity is greater. It is a widely applicable new type of gearbox.

2、 NBD400 planetary gearbox performance:

1. High torque and impact resistance: The planetary gear structure is similar to the traditional parallel gear transmission method, but different from the parallel gear transmission. The planetary gear reducer has six larger areas and 360 degree uniform loads on the gear contact surface. Multiple gear surfaces jointly and uniformly bear the instantaneous impact load, making it more capable of withstanding high torque forces. The body and various bearing parts will not be damaged or broken due to high loads.

2. Small size and light weight: The structure of the planetary reducer can be repeatedly connected according to the required number of segments, and multiple segments can be combined separately. The coaxial structure is more compact, tightly combined, and easier to assemble and disassemble.

3. Large bearing capacity: Adopting 20CrMnMo carburizing quenching and gear grinding, it has high precision, high hardness, small size, light weight, high bearing capacity, long service life, smooth operation, low noise, high output torque, high speed ratio, high efficiency, and safe performance. It has the characteristics of power splitting and multi tooth meshing for exclusive use.

3、 Structure of NBD planetary gear reducer:

The internal ring gear is fixed on the box, and the planetary gear is fixed on the planet carrier. It meshes with the input sun shaft in the middle, and the rotation of the input end drives the rotation of the planetary gear. The planetary gear meshes with the internal ring gear, and the driving source directly connects to start the sun gear. The sun gear will be driven by the planetary gears combined on the planet carrier. The entire planetary gear system automatically runs and rotates along the outer gear ring, and the planetary carrier is connected to the output shaft to achieve acceleration. This is the principle of planetary transmission. Planetary reducers are widely used in various industries, such as coal, coal mining, coal processing, mining, cement, stone processing, metal forging, machine tool processing, chemical industry, etc., due to their small size, high transmission efficiency, wide reduction range, and high precision. They have smooth transmission and high cost-effectiveness.

4、 The correct installation, use, and maintenance of the NBD400-50 planetary gear reducer are important steps in ensuring the normal operation of mechanical equipment. Therefore, when installing the planetary gearbox, please strictly follow the following installation and use related matters, and assemble and use it carefully:

1. Before installation, confirm that the motor and reducer are intact and undamaged, and strictly check whether the dimensions of each part connected to the motor and reducer match. Here are the dimensions and fitting tolerances of the motor's positioning protrusion, input shaft, and reducer groove.

2. Unscrew the screws on the outer dust-proof hole of the reducer flange, adjust the PCS system clamping ring to align its side hole with the dust-proof hole, and insert it into the hexagonal socket for tightening. Afterwards, remove the motor shaft key.

3. Connect the motor and reducer naturally. When connecting, it is necessary to ensure that the concentricity between the output shaft of the reducer and the input shaft of the motor is consistent, and the outer flanges of the two are parallel. Inconsistent alignment can cause the motor shaft to break or the planetary gearbox gears to wear out.

In addition, during installation, it is strictly prohibited to strike with hammers or other tools to prevent excessive axial or radial forces from damaging bearings or gears. Be sure to tighten the installation bolts before tightening the tension bolts. Before installation, wipe off the rust proof oil on the motor input shaft, positioning boss, and reducer connection parts with gasoline or zinc sodium water. Its purpose is to ensure the tightness of the connection and the flexibility of operation, while preventing unnecessary wear and tear.

Qinxing Gearbox in Taixing City produces high-performance new planetary gearboxes, with a full range of specifications and models. We also undertake maintenance of various planetary gearboxes, replace the inner gear ring of the sun gear planetary gear, and can be responsible for debugging and operation to ensure the high performance, low noise, and large bearing capacity of the products.

NBD250NBD280NBD315NBD355NBD400NBD450NBD500NBD560NBD560A，NBD630NBD710NBD800NBD900NBD1000 Planetary gear reducer