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BKM series gearboxes

Helical Gearbox Product Catalog

R/F/S/K series gear motor

The gears with vertical output, compact structure, large transmission torque on hard tooth surface and high precision ensure stable operation, low noise and long service life.
◆ Installation mode: base installation, flange installation, torque arm installation, small flange installation.
◆ Input mode: motor direct connection, motor belt connection or input shaft, connection flange input.
◆ Output mode: hollow shaft output or solid shaft output, with an average efficiency of 94%.

R Series Coaxial Helical Gearbox

K Series Helical-Bevel Gearbox

F Series parallel shaft Helical-Bevel Gear Motor


S Series Helical-Worm Geared Motor
Power range: 0.09KW~160KW
Output speed: 0.05rpm – 1829rpm
Output torque: 50Nm – 18000Nm
Power range: 0.12KW~200KW
Output speed: 0.1rpm-522rpm
Output torque: 200Nm-50000Nm
Power range: 0.12KW~200KW
Output speed: 0.1rpm – 752rpm
Output torque: 130Nm – 18000Nm
Power range: 0.12KW~22KW
Output speed: 0.1rpm-397rpm
Output torque: 70Nm-4200Nm

Mounting position

gear motor mounting position


HB Series Helical-Bevel Industrial Gear Reducer

H series Parallel shaft H series Orthogonal shaft

 Mounting position

1. HB industrial gearbox adopts a universal design scheme to achieve a universal box with parallel axis and orthogonal axis, reducing the types of parts and increasing the specifications and models.
2. HB standard industrial gear box adopts sound absorption box structure, large box surface area and advanced gear grinding technology for large fan, cylindrical gear and spiral bevel gear, so as to improve the temperature rise, noise reduction, operation reliability and transmission power of the whole machine.
3. The gearbox has 3~26 specifications, the reduction drive stages have 1~4 levels, and the speed ratio is 1.25~450.
4. Installation method: base installation, hollow shaft installation, swing base installation, torque arm installation.
5. Input mode: motor connecting flange and shaft input.
6. Output mode: solid shaft with flat key, hollow shaft with flat key, hollow shaft connected by expansion plate, hollow shaft connected by spline, solid shaft connected by spline and solid shaft connected by flange.
7. The backstop can be equipped according to customer requirements. It is combined with R and K series to obtain greater speed ratio.


ZDY ZLY ZSY ZFY Series Helical Cylindrical Reducer

ZY Series Models Ratio
Horizontal ZY Series Cylindrical Reducer Gearbox ZDY ZLY ZSY DCY DBY ZFYZDY (1 Stage) ZDY80, ZDY100, ZDY125, ZDY160, ZDY200, ZDY250, ZDY280, ZDY315, ZDY355, ZDY400, ZDY450, ZDY500, ZDY560 1.25~6.3
Horizontal ZY Series Cylindrical Reducer Gearbox ZDY ZLY ZSY DCY DBY ZFYZLY (2 Stage) ZLY112, ZLY125, ZLY140, ZLY160, ZLY180, ZLY200, ZLY224, ZLY250, ZLY280, ZLY315, ZLY355, ZLY400, ZLY450, ZLY500, ZLY560, ZLY630, ZLY710 6.3~20
Horizontal ZY Series Cylindrical Reducer Gearbox ZDY ZLY ZSY DCY DBY ZFYZSY (3 Stage) ZSY160, ZSY180, ZSY200, ZSY224, ZSY250, ZSY280, ZSY315, ZSY355, ZSY400, ZSY450, ZSY500, ZSY560, ZSY630, ZSY710 22.4~100
Horizontal ZY Series Cylindrical Reducer Gearbox ZDY ZLY ZSY DCY DBY ZFYZFY (4 Stage) ZFY180, ZFY200, ZFY225, ZFY250, ZFY280, ZFY320, ZFY360, ZFY400, ZFY450, ZFY500, ZFY560, ZFY630, ZFY710 100~500

DBY DCY DFY Series Helical Cone Cylindrical Reducer

DY Series Right Angle Helical Gearbox DBY/DCY/DFY Series

DY Series Models Ratio
DBY (2 Stage) DBY160, DBY180, DBY200, DBY224, DBY250, DBY280, DBY315, DBY355, DBY400, DBY450, DBY500, DBY560 8~14
DCY (3 Stage) DCY160, DCY180, DCY200, DCY224, DCY250, DCY280, DCY315, DCY355, DCY400, DCY450, DCY500, DCY560, DCY630, DCY710, DCY800 16~50
DFY (4 Stage) DFY160, DFY180, DFY200, DFY225, DFY250, DFY280, DFY320, DFY360, DFY400, DFY450, DFY500, DFY560, DFY630, DFY710 90~500

ZD ZL ZS ZQ Series Helical Cylindrical Reducer

Model Ratio Rated power(Kw) Input speed (rpm) Output torque (KN.m)
ZQ250 8.23-48.57 0.4-18.8 750 2.5-3.4
1000 2.3-3.4
1250 2.2-3.4
1500 2.0-3.4
ZQ350 8.23-48.57 0.95-27 750 6.4-8
1000 6.1-7.9
 1250  5.8-7.8
 1500  5.4-7.7
 ZQ400 8.23-48.57  1.6-26  600  8.15-16.3
 750  7.75-16.2
 1000  6.9-16
 1250  6.3-15.8
1500 5.9-15.7
 ZQ500 8.23-48.57  6.7-60.5  600  18-27
 750  16.5-27
 1000  14.5-26
 1250  13-26
1500  14-25.5
 ZQ650 8.23-48.57 6.7-106  600  33.5-63.5
 750  29-62.5
 1000  27-62
 10.35-48.57  1250  32-60
 15.75-48.57 1500  32-59
 ZQ750 8.23-48.57 9.5-168  600  52-95
 750  47-89
 12.64-48.57  1000  56-87
 15.75-48.57  1250  56-85
 20.49-48.57 1500  63.5-83
 ZQ850 8.23-48.57  13.1-264  600 76.8-122.8
 750 69-121.8
 12.64-48.57  1000 90-118.4
 20.49-48.57  1250 98.2-116.4
 ZQ1000 8.23-48.57  42-355  600 107-209
 750 95.4-206
 15.75-48.57  1000 129-200
 23.34-48.57  1250 155-195

Helical Gear System

Helical gears system have slanted tooth trace and are a form of cylindrical gear. They have a higher contact ratio than spur gears, are quieter, have less vibration, and can transmit a lot of force. The helix angle of a pair of helical gears is the same, but the helix hand is in the opposite direction. In applications where spur gears are suitable but shafts are not parallel, helical gear systems are frequently the default choice. They’re also employed in applications that need a lot of speed or a lot of loads. They provide smoother, quieter operation than spur gears, regardless of load or speed.

Advantages of Helical Gears

Both parallel and non-parallel shafts can be utilized with helical gears. Helical gears enable smoother gear performance because the teeth contact more gradually, minimizing shock loads and creating less noise and vibration. This makes them perfect for high-speed applications requiring noise reduction. Helical gears may bear a large amount of weight. Its diagonally positioned teeth are bigger in number and length, increasing the contact surface area. Between parallel and straight-angle axes, they may transfer both power and motion.

Helical Gearbox

Helical Gears For Transmission

Helical gears are becoming more popular as power transmission gears, not only because they can bear bigger loads due to their reduced dynamic load, but also because their noise and vibration levels are lower in operation than spur gears. Helical gears are identical to spur gears with the exception that their teeth are cut at an angle to the hole (axis) rather than linear and perpendicular to the hole as spur gear teeth are.

Worm Gears vs Helical Gears

Worm gears are geared arrangements in which a worm – or screw – is in contact with gear. The client has control over the velocity due to the particular composition of this type of gear. Torque can also be increased by using worm gears.

The angled teeth act more slowly than worm gears or toothed wheels, resulting in quieter and smoother gear performance. Due to the higher number of teeth in contact, helical gears last longer and are suited for high-load applications.

If you utilise worm gears and want to improve the efficiency of your industrial facilities, you should look at the differences between worm and helical gears to lessen the strain on industrial gear systems. Helical gears, on the other hand, are the most commonly used type of gear in gearboxes. Helical gears provide a large amount of thrust as well. To withstand this high stress, bearings are utilised.

Both helical and worm gears are undeniably advantageous in a variety of situations. To get the most out of these tools, though, it’s critical to invest in high-quality gear. HZPT offers a wide range of industrial gears and gearboxes that are both industry-grade and long-lasting. Contact our team of specialists immediately for more information.

Helical Gear VS Worm Gear

Helical Gearbox Benefits

The advantages of helical gearboxes are obvious. They are silent and better suited to heavy-load efficiency. Some common applications for helical gearboxes include the textile and plastics industries. They are also found in industrial applications such as compressors, blowers, and elevators. Here are some of the most important benefits of helical gearboxes:

They are easy to maintain. They can handle a large amount of torque and heat without requiring frequent maintenance. In the gearbox, the helical gears are cut into two pieces: a single section that is close to the other, and a double helical gear that has two halves cut out in two. These gears are better for precision drives than low-quality gears. The benefits of a helical gearbox are numerous, and you’ll probably be surprised by what they can do for your motor.

The primary benefit of a helical gearbox is that the helical gear can accommodate a larger load than spur gears. As the pitch circle diameter of a helical gear is bigger, it can bear a heavier load. Furthermore, helical gears are easier to manufacture since they use the same tooth-cutting tools as spur gears. However, you can’t interchange the same spur gears with helical gears.

Another benefit of a helical gearbox is that it is less noisy. This makes it more durable and reduces vibration and noise. They also have more teeth, meaning they’re more likely to last longer. In addition, their larger teeth will reduce the likelihood of wear and tear. This, in turn, means that a helical gear will provide superior strength for the same tooth size. The advantages of a helical gearbox are significant enough that they are often the choice of many industries.


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