Brushless motor RB-2847-68 series

BLDC6 V12 V

Product Overview
RB-2847-68 is a 28 mm class Brushless DC Motor (BLDC) with an extra-long 46.5 mm body designed to increase magnetic circuit and torque capability. Typical use cases include actuators, pumps and handheld screwdrivers where compact size and extended lifetime are required. Peak/stall torque can exceed 800 g·cm; max-efficiency torque examples reach up to 193.8 g·cm depending on variant.

Key Facts for Engineering Buyers

• Product category: Brushless DC Motors (BLDC)
• Motor family: 28 mm-class BLDC with extended body
• Brand / manufacturer: KWC Motor, Dongguan KWC Machinery Co., Ltd.
• Typical applications: linear actuators, vacuum/air pumps, handheld screwdrivers, medical micro pumps

Specification Signals

• Diameter: 28 mm (approx.)
• Body length: 46.5 mm (extra-long for increased magnetic/coil volume)
• Torque (example max-efficiency): up to 193.8 g·cm (variant dependent)

Customization and Sourcing Notes
OEM/ODM customization available for operating voltage, nominal voltage, target speed and torque, shaft geometry (length, D-shaft or threaded), cable or connector options, integrated gearboxes (spur or worm), encoder fitting or subassembly. Noise and EMC objectives can be addressed through design choices. Final pricing and guaranteed performance are provided after specification, quantity and application confirmation.

Target Applications & Solutions

• Linear actuation & vacuum systems: electric linear actuators, vacuum pumps, air pumps, motorized curtains — suitable for high-resistance loads requiring elevated torque.
• Medical and precision devices: medical micro pumps, electric valves, handheld electric screwdrivers, massage devices — brushless lifetime and low-EMI characteristics beneficial for sensitive equipment.

Technical Specifications (model variants)
RB-2847-68-N-01 | 9.0V - 14.0V | 12.0V | No-load 6000 rpm | Max-efficiency 4800 rpm | Max-eff torque 122.8 g·cm | Output 6.10 W
RB-2847-68-N-02 | 9.0V - 16.0V | 12.0V | No-load 7300 rpm | Max-efficiency 5977 rpm | Max-eff torque 95.5 g·cm | Output 5.86 W
RB-2847-68-N-03 | 9.0V - 26.0V | 24.0V | No-load 7300 rpm | Max-efficiency 6000 rpm | Max-eff torque 130.0 g·cm | Output 8.02 W
RB-2847-68-N-04 | 6.0V - 12.0V | 6.0V | No-load 3500 rpm | Max-efficiency 2600 rpm | Max-eff torque 193.8 g·cm | Output 5.19 W

Comparison vs. Conventional Brushed Motors (summary)

• Service life: BLDC designs avoid brush wear, offering substantially longer service life under comparable conditions.
• Torque performance: RB-2847-68 variants provide elevated torque for a 28 mm-class motor.
• EMI: BLDC operation eliminates brush sparking, reducing conducted and radiated interference—advantageous for medical and precision applications.
• Body length: extra-long 46.5 mm body increases magnetic and coil volume to improve torque capability.

Purchasing FAQ (selected)

• MOQ: Samples available from 1–5 pcs; pilot runs typically 100–500 pcs; recommended mass-production volumes around ~1,000 pcs for optimized pricing.
• Packaging: Industrial blister trays with reinforced outer cartons; palletized export packing available.

Characteristics / Technical Specifications

• Model: RB-2847-68 (variants N-01, N-02, N-03, N-04)
• Brand: KWC Motor (Dongguan KWC Machinery Co., Ltd.)
• Motor type: Brushless DC Motor (BLDC)
• Diameter: ≈28 mm
• Body length: 46.5 mm
• Max-efficiency torque examples: up to 193.8 g·cm (variant dependent)
• Peak/stall torque: exceeding 800 g·cm (design capability for high-load scenarios)
• Nominal voltage variants: 6.0V, 12.0V, 24.0V (see model variants)
• No-load speeds and speeds at max efficiency vary by model (see model variants)
• Continuous output at max efficiency: approx. 5.19 W to 8.02 W depending on variant
• Customization: voltage 6–26V supported, shaft length/type, gearbox/encoder integration, EMC/noise tuning