Changzhou Hetai Motor And Electric Appliance Co., Ltd.
Changzhou Hetai Motor And Electric Appliance Co., Ltd.
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12V NEMA 17 stepper motor planetary gearbox high efficiency 1:54 reduction ratio
42BYGH603motor with Powder metallurgy 42mm planetary gearbox, the holding torque is 3.8 Kg.cm at 12V. The current is 0.4A. If the customer needs a higher torque, they can choose a higher reduction ratio, from 3 levels of reduction ratio, which we also call the number of gear trains. The first stage ratio is consists of 1/4 and 1/6. The second stage has ratios of 1/15, 1/18, 1/25 and 1/36. While the third stage has 1/54, 1/65, 1/90, 1/112, 1/155 and 1/216. A higher reduction ratio will result in lower speed and higher torque.
Electrical Specification
| STEP ANGLE | °/STEP | 1.8 |
| RATED VOLTAGE | V | 12 |
| CURRENT | A/PHASE | 0.4 |
| RESISTANCE | Ω/PHASE | 30 |
| INDUCTANCE | mH/PHASE | 65 |
| HOLDING TORQUE | Kg.cm | 3.8 |
| INSULATION CLASS | B | |
*Products can be customized by special request.
Out diameter 42mm Powder metallurgy
| Housing material | Bearing at output | Radial load(10mm from flange)N | Shaft axial load(N) | Shaft press-fit force max(N) | Radial play of shaft(mm) | Thrust play of shaft(mm) | Backlash at no-load (°) |
| Powder metallurgy | sleeve bearing | ≤120 | ≤80 | ≤500 | ≤0.03 | ≤0.1 | ≤1.5 |
| Reduction ratio | Rated tolerance torque (Nm) | Max momentary tolerance torque (Nm) | Efficiency% | Length L (mm) | Weight(g) | Number of gear trains |
| 1/4 | 1.0 | 3.0 | 81% | 32.5 | 170 | 1 |
| 1/6 | ||||||
| 1/15 | 4.0 | 12 | 72% | 46.3 | 207 | 2 |
| 1/18 | ||||||
| 1/25 | ||||||
| 1/36 | ||||||
| 1/54 | 8.0
| 25
| 65%
| 60.1
| 267
| 3 |
| 1/65 | ||||||
| 1/90 | ||||||
| 1/112 | ||||||
| 1/155 | ||||||
| 1/216 | 10 | 30 | 65% | 60.1 | 267 |
Mechanical Dimension
Unique Design for High Power Density
High power density is one of the many planetary gearbox advantages.
This is mainly due to the many planets in the gear system, which allow for efficient power distribution.
Hetai's Capability
Changzhou Hetai Electric Appliance Co., Ltd. is a micro-motor manufacturing enterprise with strong technical strength. Specializing in the production of various stepper motors, stepper motor drivers, brushless DC motors, etc., with an annual output of 3 million units! Products are mainly used in printers, ticket printing machines, engraving machines, medical instruments, stage lighting, the textile industry, and other industries of automation equipment and instruments. Welcome to our company to purchase various motors, we will provide high-quality stepper motors and stepper motor drivers, and other products.