China factory DM-42RP 775 42mm micro brush dc planetary gear motor 24v 12v reductor electrical gearbox metal speed reducer gearmotor with Free Design Custom

Warranty: 6 months
Model Number: DM-42RP775
Usage: BOAT, Car, Electric Bicycle, FAN, Home Appliance
Type: GEAR MOTOR
Torque: 5~100kgf.cm
Construction: Permanent Magnet
Commutation: Brush
Protect Feature: Totally Enclosed
Speed(RPM): 1~1000rpm
Continuous Current(A): 0.4A-5A
Efficiency: Ie 3
Working Current: 0.4A-5A
Gearbox Size: 42mm round
Stall Torque: 5kgf.cm-200kgf.cm
Driving Motor Speed: 2000rpm-9000rpm
Gears Style: Metal gear
Shaft diameter: 8mm
Normal Shaft Length: 22mm
Certification: CE, Rohs, CCC, ce, RoHS
Application: door lock, robotic
Working Hours: 800-1200 hours
Packaging Details: foam packed with outer paper cartons

Products Description Appearance size: Products Specification Gearbox Data:

Number of stages
1
2
3
4

Reduction ratio
3.7、5
13、18、25
49、67、 Brand new manufacturer galvanized springboard galvanized formwork steel plank machine 92、125
181、246、336、458、625

Gearbox length “L”mm
33.5
43.5
53.5
63.5

Breaking torque(kgf.cm)
15
25
50
90

Gearbox efficiency
90%
81%
73%
65%

Driving Motor Data:

Motor model
Rated Volt.
No load

Load

Stall

Current
Speed
Current
Speed
Torque
Output power
Torque
Current

V
mA
r/min
mA
r/min
gf.cm
W
gf.cm
mA

DM-775-012-3000
12
≤280
3000
≤1300
2600
450
12
≥3600
≥8600

DM-775-012-4500
12
≤450
4500
≤2100
3800
500
19.5
≥ High quality ZJU56 Economical general universal planetary reducer Stepper Motor Gear Speed Reducer Planetary Gearbox 4600
≥16200

DM-775-012-6000
12
≤680
6000
≤3600
5200
600
32
≥5600
≥27200

DM-775-571-3000
24
≤120
3000
≤920
2600
450
12
≥2800
≥5100

DM-775-571-4500
24
≤230
4500
≤1400
3800
500
19.5
≥4100
≥11000

DM-775-571-6000
24
≤ Weiyou Rotary Shaft Housing For EC460 EC480 Excavator Final Drive Housing SA7118-3571 350
6000
≤2300
5100
600
31.4
≥5800
≥19000

Gear Motor Data:

Motor model
RatedVolt.
No load

Load

Stall

Current
Speed
Current
Speed
Torque
Output power
Torque
Current

V
A
r/min
A
r/min
kgf.cm
W
kgf.cm
A

DM-42RP7750123500-3.7K
12.0
0.40
941.9
2.04
772.1
1.77
14.00
9.80
9.48

DM-42RP7750123600-125K
12.0
0.36
28.1
1.71
23.4
43.98
10.57
261.56
8.44

DM-42RP7750126000-5K
12.0
0.80
1296.5
3.99
1087.1
2.60
29.05
16.11
20.51

DM-42RP7750126000-49K
12.0
0.80
115.6
3.86
97.6
22.40
22.43
143.52
20.37

DM-42RP7750126000-125K
12.0
0.83
46.2
3.55
37.0
52.37
19.90
263.04
14.54

DM-42RP7750127000-3.7K
12.0
1.23
1929.4
5.90
1544.7
2.54
40.28
12.74
24.65

DM-42RP7750127000-125K
12.0
1.01
53.9
5.25
43.9
64.04
28.82
344.17
23.80

DM-42RP7750128000-25K
12.0
1.06
318.0
4.22
249.7
9.90
25.36
46.07
15.77

DM-42RP7750128000-92K
12.0
1.08
87.7
5.09
72.1
39.96
29.56
224.38
23.57

DM-42RP77501212000-3.7K
12.0
3.10
3234.8
13.50
2528.9
3.22
83.67
14.77
50.74

DM-42RP7755712000-336K
24.0
0.08
6.0
0.32
4.7
57.22
2.76
261.33
1.18

DM-42RP7755712100-49K
24.0
0.11
41.7
0.46
32.3
13.55
4.49
60.21
1.67

DM-42RP7755712100-67K
24.0
0.08
29.4
0.39
23.7
17.16
4.18
88.90
1.68

DM-42RP7755713000-18K
24.0
0.16
165.2
0.85
136.3
7.72
10.80
44.19
4.11

DM-42RP7755713000-49K
24.0
0.13
62.2
0.72
53.2
15.81
8.64
109.44
4.22

DM-42RP7755713600-125K
24.0
0.19
29.1
1.16
24.5
57.20
14.40
363.22
6.34

DM-42RP7755715000-27K
24.0
0.21
197.2
1.57
166.7
13.32
22.79
86.06
9.02

DM-42RP7755714500-181K
24.0
0.60
24.6
2.02
19.4
92.40
18.38
433.23
7.31

DM-42RP7755716000-25K
24.0
0.30
228.9
1.93
199.3
14.00
29.17
110.00
12.92

DM-42RP7755717000-13K
24.0
0.46
551.6
3.29
467.2
10.20
48.92
66.66
18.99

DM-42RP7755717000-67K
24.0
0.37
104.1
2.40
90.6
32.98
30.68
254.37
16.00

DM-42RP7755718000-25K
24.0
0.63
330.4
4.07
277.1
19.62
55.82
121.62
21.93

DM-42RP7755718000-92K
24.0
0.51
85.7
3.11
72.3
52.97
39.29
338.17
17.13

DM-42RP77557110000-13.7K
24.0
0.57
729.9
4.57
626.6
10.76
69.21
76.00
28.77

HangZhou Xihu (West Lake) Dis.ming Motor Co., Ltd. is specialized in designing, manufacturing and selling micro DC motors, especially gear motors.We have successfully worked out over 100 series of micro DC motors. Our products are widely applied in household appliances,audio/video products, office equipment, health-care and beauty-care facilities, medical appliances, high-class toys, electronictools, electronic commodity, OEM RV040 RV050 RV063 electric motor with gear box gearbox nmrv worm gear reducer automotive parts and automatic systems.We have a team of professional staff who are working on R&Dand QC. They ensure our good quality managing system and advance technology.

What Is a Gearbox?

A gearbox is the mechanical system of an automobile that allows a vehicle to change gear smoothly. This arrangement of gears is highly complex, which helps to provide a smooth gear change. In this article, we will explore some of the different types of gearboxes, including the Epicyclic gearbox, the Coaxial helical gearbox, and the Extruder helical gearing. These are three of the most common types of gearboxes used in automobiles.
gearbox

Gearboxes

Gearboxes help drivers choose the appropriate gear for the conditions. A lower gear produces the least speed, while a higher gear gives the maximum torque. The number of gears used in a gearbox varies to meet different demands on the road and load. Short gearing provides maximum torque, while tall gearing offers higher top speeds. These features combine to improve the driveability of a vehicle. But what is a gearbox?
The gearbox has a slew of components, including the bearings and seals. Among these components is the gearbox, which is subjected to wear and tear due to metal-to-metal contact. As a result, gearboxes require close monitoring. Various tests are used to assess the condition of gears, such as corrosion and wear. Proactive tests emphasize wear, contamination, and oil condition. However, there are also proactive tests, such as the ferrous density test and the AN test, which monitor additive depletion and abnormal wear.
The separating force is a key factor for the design of a gearbox. The primary radial measurement point should be oriented to monitor normal forces. The secondary measurement point should be located in the opposite direction of rotation from the primary radial measurement point. The separating force generated by a helical gear set is called tangential force. The primary and secondary radial measurement points should be positioned so as to provide information about both normal and tangential forces.
Manual gearboxes are often manual. The driver can control the synchromesh by using a selector rod. This rod moves the synchromesh to engage the gear. Reverse gears are not synchromesh because they are used only when the vehicle is at a standstill. In older cars, the first gear often lacked synchromesh due to cost or lack of torque. Drivers could still use first gear with a double-declutch.

Coaxial helical gearbox

The R series rigid tooth flank helical gearbox features high versatility and good combination. They have a wide range of motor power and allow for fine classification of transmission ratios. The R series gearbox has several advantages, including high efficiency, long service life, and low vibration. This series of gearbox can be combined with a wide range of reducers and variators. Its size and high performance makes it an ideal choice for applications that require maximum torque and load transfer.
The main feature of a helical gearbox is that it presents a fixed velocity ratio, even if the center gaps are not perfectly set. This is sometimes referred to as the fundamental rule of gearing. A helical gearbox is similar to paper spur gears in terms of radial pitch, since the shafts in the helical gearbox cross at an angle. The center gap of a helical gearbox is the same for both the left and right-handed counterparts.
The EP Series is another popular model of a Coaxial helical gearbox. This series has high torque and a maximum reduction ratio of 25.6:1. It is an ideal choice for the plastic industry, and CZPT offers an extensive range of models. Their center distance ranges from 112 mm to 450 mm. The EP Series has several models with different center distances. In addition to high torque and efficiency, this gearbox has low noise and vibration, and it is easy to assemble and disassemble.
Another type of Coaxial helical gearboxes is the planetary gearbox. They have a high efficiency and power density. Unlike coaxial helical gearboxes, planetary gearboxes have an axis on the same direction as the output shaft. They are easy to integrate into existing drive trains. In addition, they are compact and easy to integrate with existing drive trains. For servo applications, they are another great choice.
gearbox

Epicyclic gearbox

An epicyclic gearbox is a type of automatic gearbox used to drive cars. Its primary advantage is its compact design, and it is more reliable and efficient than manual gearboxes. It is comprised of a sun gear and two planetary gears, encased in a ring gear called the Annulus. This system is useful for drivers who need to shift gears frequently, as they will become tired if the gears are suddenly changed.
An epicyclic gearbox consists of three different types of gears: ring gear, sun gear, and annular ring gear. The ring gear is the outermost gear and has angular-cut teeth on its inner surface. It is used in conjunction with planetary gears to provide high-speed ratios to vehicles. The sun gear also reverses the direction of the output shaft. This helps reduce transmission error.
An epicyclic gearbox uses multiple planets to transfer power between the planets. This type of gearbox is lightweight and features a high power density. This gearbox has several benefits over a standard single-stage parallel axis gearbox, including multiple load paths, unequal load sharing, and phased meshing. Furthermore, epicyclic gearboxes require more complex transmission error optimisation than their counterparts, including more than one stage.
The objective of epicyclic gearbox research is to provide the lowest transmission error possible. The process includes an initial design and detailed specification. The system is defined by its load spectrum and required ratio. Deflections of the elastic mesh are calculated to understand their strength and how much energy the system can handle. Finally, micro-geometric corrections minimize transmission error. These improvements are crucial to the overall efficiency of an epicyclic gearbox.

Extruder helical gearing

The helix in an extruder helical gearing is fixed at an angle, enabling more interaction with the shaft in the same direction as it moves. As a result, the shaft and the bearing are in constant contact for a long period of time. Typically, extruder helical gearing is used in applications where there is low excitement, such as steel, rolling mills, conveyors, and the oil industry. The bevel gear train also plays a role in these applications.
The CZPT AEX extruder drive gear is specifically developed for this specific application. The gears are compact and lightweight and offer exceptional power density and a long service life. These extruder gears are highly reliable, and they can be used in a wide range of applications, including rubber processing, food production, and recycling plants. CZPT offers both standard and custom gearing for your extruder.
Another advantage of helical gearing is its versatility. Since the helical gearing teeth are inclined at a specific angle, they can be adjusted to meet the specific needs of a given application. These gears also have the advantage of eliminating noise and shock from straight teeth. Unlike other gearing types, they are able to achieve a wide range of loads, from small to large. These helical gears are very durable and are the best option for high-load applications.
In addition to this, asymmetric helical gears have increased flexibility, while asymmetrical helical gears have lower flexural stiffness. The ratio of teeth to the shaft has a positive effect on the strength of the gear. Furthermore, asymmetrical helical gears are easier to manufacture. But before you purchase your next extruder gear, make sure you know what you’re getting into.
gearbox

1 speed gearbox

CZPT Group Components produces the one speed gearbox. It has the potential to make cars more efficient and environmentally friendly. The gear ratio of a car’s drivetrain is crucial for reaching maximum power and speed. Typically, a one-speed gearbox delivers a maximum of 200 hp. But the speed at which a car can reach this power must be high to get the full benefit from the electric motor. So, how can a one-speed gearbox improve the speed and torque of a car?
A one-speed gearbox is a mechanical device used to switch between second and third gears. It can include multiple gear sets, such as a shared middle gear for switching between second and third gears. It can also have an intermediate gear set that represents a switchable gear in both partial transmissions. The invention also includes a mechanism that makes it easier to change gears. The patent claims are detailed below. A typical one-speed gearbox may include two parts.
Generally, a one-speed gearbox will have up to seven forward gears, with each of these corresponding to a different speed. A one-speed gearbox can have five different gear sets and five different gear levels. It can have synchronized gear sets or last-shelf gear sets. In either case, the gears are arranged in a way that maximizes their efficiency. If the gears are placed on opposite sides of a car, the transmission may be a two-speed one.
CZPT Transmission specializes in the production of high-speed gearboxes. The company’s Milltronics HBM110XT gearbox machine is the perfect tool for this job. This machine has a large working table and a heavy-duty load capacity, making it a versatile option for many kinds of applications. There are also a wide variety of CZPT gearboxes for the automotive industry.

China factory DM-42RP 775 42mm micro brush dc planetary gear motor 24v 12v reductor electrical gearbox metal speed reducer gearmotor  with Free Design CustomChina factory DM-42RP 775 42mm micro brush dc planetary gear motor 24v 12v reductor electrical gearbox metal speed reducer gearmotor  with Free Design Custom

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