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Help Center4070R 40 mm Micro Coreless Brush dc Electric Motor
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Notice: Data in this typical specification sheet are for certain customers. The power voltage, rated torque, speed, current, power, and driveshaft extension can be customized to meet customer-specific requirements.
| Motor data) | 4070R-01A | 4070R-02A | 4070R-03A | |
| (Values at nominal voltage) | ||||
| 1 (Nominal voltage | VDC | 24 | 48 | 48 |
| 2 (No load speed) | rpm | 7340 | 9200 | 7720 |
| 3 (No load current) | mA | 120 | 75 | 85 |
| 4 (Nominal speed) | rpm | 6752 | 8600 | 7210 |
| 5 (Nominal torque) | mNm | 100 | 90 | 100 |
| 6 (Nominal current) | A | 3.31 | 1.9 | 1.81 |
| 7 (Stall torque) | mNm | 1224 | 1379 | 1552 |
| 8 (Stall current) | A | 40.00 | 28.24 | 26.64 |
| 9 (Max efficiency) | % | 89 | 90 | 89 |
| (Motor constant) | ||||
| 10 (Terminal resistance) | Ω | 0.6 | 1.7 | 1.8 |
| 11 (Torque constant) | mNm/A | 30.61 | 48.85 | 58.21 |
| 12 (Speed constant) | rpm/V | 61 | 123 | 91 |
| (Other specs) | ||||
| 13 (Ambient temperature ) | -10~40 °C | |||
| 14 (Max permissible winding temperature) | 80 °C | |||
| 15 (Max permissible speed) | 10000rpm | |||
| 16 (Number of the pole pairs) | 1 | |||
| 17 (Number of the commutator segments) | 5 | |||
| 18 (Weight) | 350g | |||
| Frequently asked questions and answers: |
Q: 1. What dc motor/gear motor do you provide?
A: Full range of small gearbox dc motor, including spur gearhead dc motor, worm gearbox electric motor, and planetary gear reducer electric motor; diameters from 6 mm, 8 mm, 10 mm, 12 mm, 13 mm, 16 mm, 20 mm, 22 mm, 24 mm, 28 mm, 32 mm, 36 mm, 37 mm, 42 mm, 45 mm, 57 mm (from 0.24 inch to 2.244 inches); output speed 5 rpm to 3000 rpm; gear reduction ratio 5-1500, output torque from 1gf.cm to 500kgf.cm ( from 0.098 mN.m to 49 N.m; from 0.014 oz.in to 7000 oz.in). Long lifespan and reliable smooth running.
Q: 2. Is it possible for you to develop new motors if we can provide tooling costs?
A: Yes. Please kindly share the detailed requirements such as performance, size, annual quantity, target price, etc. Then we'll make our evaluation and provide you with the proposal.
Q: 3. Can I get some samples?
A: Most of our samples are free for you, some expensive motors we charge double the price as the bulk order price.
We only deal with bulk orders, many consumer customers only want 1 or 2 for replacement, so we set this rule to select target customers. :)
Don't worry, the samples charge will be refunded as payment of motors later when you place a mass production order.
Q: 4. When you will reply to me?
A: Our customer service staff will reply to you within 12 hours.
Q: 5. Can you send me a price list?
A: For all of our small dc motors and mini gear motors, they are customized based on different requirements like lifetime, noise, voltage, shaft, etc. The price also varies according to different quantities. So it's difficult for us to provide a price list. If you can share your detailed requirements and quantity, then we can send you the specified dc electric motor pricing.
Q: 6. How to order?
A: Send us an inquiry → Receive our quotation → Negotiate details → Confirm the sample → Sign contract/deposit → Mass production → Cargo ready → Balance/Delivery → Further cooperation.
Q:7. What's the lead time for regular orders?
A: For regular dc motor and gear motor orders, the standard lead time is about 25-40 days and the lead time varies based on a different model, period, and quantity.
Q: 8. What are the payment terms?
A: We accept payment by T/T, PayPal. Initial payment 30-50% in advance, shipping against balance payment. We can also accept other payment terms after we have established a good long-term cooperative relationship.
Q: 9. Which shipping way is available?
A: DHL, UPS, FedEx, TNT, EMS, China Post, Sea shipping are available, we have favorable prices for those shipping methods since we ship a lot. Contact us for details when you want to compare the shipping cost paid by your side and by our side.
Q: 10. My package has missing products. What can I do?
A: Please contact our support team and we will confirm your order with the package contents and check what should do. We apologize for any inconvenience.
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