RK-520TB-22195A 6V 5700RPM Low Current Carbon Brush DC Motor 33mm for Mini Air Pump
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Highlight
6V carbon brush DC motor
,5700RPM low current DC motor
,33mm DC motor for mini air pump
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Motor ModelRK-520TB-22195A
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Motor TypePermanent Magnet DC Motor With Carbon Brush
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Rated Voltage6V DC (3V - 24V Optional)
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No Load Speed5700 RPM
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No Load Current<= 85 MA
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Brush GradeGraphite-copper Composite
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Brush Life500+ Hours Continuous At Rated Load
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Motor Body31mm X 33mm (L X Dia)
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Shaft Diameter2mm
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Shaft Length7.3 +/- 0.3mm
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Noise Level<= 45 DB(A) At 30cm
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ApplicationMini Air Pump, Diaphragm Pump, Oxygen Pump, Portable Appliance
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CustomizationWinding, Shaft, Lead Wire And Connector On Request
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Place of OriginDongguan, Guangdong, China
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Brand NameHCS Motors
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CertificationISO 9001, IATF 16949, RoHS, REACH
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Model NumberRK-520TB-22195A
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Minimum Order Quantity2000 Pieces
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PriceNegotiation
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Packaging DetailsAnti-static bag with shockproof foam, export carton, 200 pieces per carton
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Delivery Time35-45 days after deposit, 7 days for samples
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Payment TermsT/T, L/C, D/A, D/P, Western Union
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Supply Ability30000 Pieces per Day
RK-520TB-22195A 6V 5700RPM Low Current Carbon Brush DC Motor 33mm for Mini Air Pump
RK-520TB-22195A Carbon Brush DC Motor 6V 5700RPM
Low current graphite-brush micro motor for mini air pumps, oxygen pumps and portable appliance drives.
6V DC5700 RPM<= 85 mAGraphite Brush7.3mm ShaftProduct Overview
The RK-520TB-22195A is the low-current branch of the RK-520TB carbon brush DC motor family. Wound for 6V DC, it reaches 5700RPM while drawing no more than 85mA at no load - roughly a third of the current of a comparable high-speed winding - which is what makes it usable on battery packs, USB power banks and small solar cells without a step-up converter.
The brush grade is the part that decides the service life in this class of motor. This model uses a graphite-copper composite brush running on a machined copper commutator, tuned for low sparking: the arc is small enough that brush wear stays even at 5700RPM, and electrical noise stays low enough for the motor to share a PCB with a pressure sensor or a microcontroller without extra filtering.
Key Specifications
| # | # |
|---|---|
| Motor model | RK-520TB-22195A |
| Motor type | Permanent magnet DC motor, carbon brush commutation |
| Rated voltage | 6V DC (3V - 24V winding options) |
| No-load speed | 5700 RPM |
| No-load current | <= 85 mA |
| Motor body | 31mm x 33mm (L x Dia) |
| Shaft diameter | 2mm |
| Shaft length | 7.3 +/- 0.3mm |
| Brush grade | Graphite-copper composite |
| Brush life | 500+ hours continuous at rated load |
| Noise level | <= 45 dB(A) at 30cm |
Carbon Brush Design Highlights
- Graphite-rich brush face seats itself onto the commutator within the first running hour, so break-in sparking drops quickly and stays low.
- Brush spring pressure is set for 5700RPM operation - high enough to keep contact, low enough to avoid accelerated brush wear.
- Two-piece brush holder with a heat-resistant phenolic seat tolerates repeated start-stop cycles in pump applications.
- Copper-graphite mix keeps the commutator film stable, which is the main driver of long brush life in intermittent pump duty.
Applications
Mini air pumps and diaphragm pumps, oxygen concentrator blowers, blood pressure monitor pumps, aroma diffusers, massage devices, portable inflators and other battery-powered appliances that need a compact 6V brushed DC motor with predictable brush life.
Quality, Packing and Delivery
- 100% no-load speed and current screening on every unit; current ceiling held below 85mA.
- Batch brush life test: 500 hours continuous run at rated load with wear measured every 100 hours.
- RoHS and REACH compliant; ISO 9001 and IATF 16949 production system.
- Anti-static bag, shockproof foam, export carton of 200 pieces.
- Samples in 7 days; production 35-45 days after deposit.
Our products are sold all over the world, you can rest assured.
