XB NEMA 23 (57mm) Coupling 8x8mm
- Material: Aluminum alloy hubs and elastomeric polyurethane spider.
- Product Type: Clamp-style jaw coupling without keyway.
- Dimensions: bore size: 8mm x 8mm.
- Number of Screws: 2 each.
- Angular Misalignment: +/-1°.
- Parallel Misalignment: +0.20mm/-0.20mm .
- Maximum Rotational Speed: 6500RPM.
- Suitable for Nema 23 Stepper Motor or for any motor/rod having an 8mm diameter
- Widely used in motors, stepper motors, encoders, and servo machines.
RB NEMA 17 (42mm) Coupling 5×6.35mm
Capacitor Touch Dimmer, Constant Voltage LED Stepless Dimming, PWM Control Board
- Voltage range: 4V to 5V
- Maximum output current: 500mA
- Hole distance: 16 mm
- Aperture: 5 mm
- The lamp brightness can be adjusted by requirement, it is very to operate.
- It can touch in medium protection, such as glass, acrylic, plastic, ceramics, and so on, which is very safe.
- Anti power and phone interference, the EFT can reach above +/-2KV; the touch response sensitivity and reliability will not be affected by the close distance or multi-angle mobile phone interference.
- Dimming mode: Non-polar PWM dimming.
- PCB size: 23 x 20mm
USB Charger Doctor
- Display data: Voltage Current
- Operating Voltage: 3.5 to 7 V
- Maximum Current: 3 A ( accuracy of 0.4% )
- Battery Capacity (0-99999mah)
- Working time (0-99Hour)
- Charger voltage compliance DC 5V
- Resolution : Voltage 10mV current 1mA
- Error : voltage <± 1% current <± 2%
- USB Plug: 13mm / 0.5"
- RTZ, Reset button, press it three seconds will Reset
- The working time and Capacity have a Memory function when power is off.
- Compact and easy to carry, no additional power supply, plug, and play
- Detect any USB charger such as PC USB, home charger, car charger
- Easily measures the output voltage of the USB port and the device operating current or load voltage
- Dimensions: 21mm x 53mm x 15mm
- Weight: 16.2gm
USB for DIY charger 5V Step-Up Power Module Lithium Battery Charging Board
- Input Voltage:3.7V~5.5V
- Charging Current:1A(max)
- Output Current:1A(max)
- Output voltage:5V
- BAT Discharging Stop Voltage: 2.9V.
- Discharging Efficiency:85%(input 3.7V output 5V/1A).
- Charging and discharging indication.
- Internally installed charging and discharging power MOS.
- Preset 4.2V charging voltage, precision ±1%.
- Max 8uA standby current.
- Integration charging management and discharging management.
- Intelligent temperature control and overtemperature protection.
- Integration output overvoltage protection, short circuit protection, overload protection.
- Integration overcharging and over-discharging protection.
- Support trickle mode and zero voltage charging.
- When charging: red light flashing.
- Fully charged: Red light glows for a long time
GT2 20 tooth bore 6.35mm width 10mm pulley
GT2 20 tooth bore 8mm width 10mm pulley
GT2 20 tooth bore 8mm for width 6mm belt
GT2 20 tooth bore 6.35mm for width 6mm belt
- of teeth: 20.
- Outer Diameter: 16 mm.
- Inner Diameter: 6.35mm.
- Length: 16 mm.
- Teeth number: 20
- Flange: Double
- Measures 0.63" (16mm) long and 0.63" (16mm) outer edge diameter.
- Diameter of geared section is 0.48" (12.2mm) - measurement taken from top of tooth to top of tooth on opposite side
- Weight 6 gram