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BO Shaft to Square Gear Extension Adapter No.548
₹22.00 Original price was: ₹22.00.₹19.00Current price is: ₹19.00.
STOCK: 93 (WooHoo!) Available
Quick Review:
- Shaft Length: 22mm App.
- Adopter Dia: 8mm
- Shaft Diameter: 3mm (Square)
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
Availability:
93 in stock

93 in stock
2 in stock
Turn the BO motor shaft which is rectangular in shape into a rectangular 3mm shaft using this shaft adaptor. Most of the Wheel and gears are available in 3mm Square bore and can not be coupled directly with cheap plastic gear BO motor, this shaft adaptor solves this problem and allows it to connect to any accessory with 3mm bore size. Available in Yellow colour. Shipped in any of these colour based on the availability at the time of order.
Technical Specifications:
- Shaft Length: 22mm App.
- Adopter Dia: 8mm
- Shaft Diameter: 3mm (Square)
Package Includes:
- 1 Piece-BO Motor Shaft to Square Gear Extension Adapter
Shipping
We strive to ensure that your orders reach every corner of India efficiently and reliably. To achieve this, we partner with some of the most trusted courier services in the country, including E-Kart, Amazon Surface, Delhivery, DTDC, Blue Dart, XpressBees, Ecom Express, and India Speed Post—especially for rural areas, based on the most suitable courier partner for each customer’s location.
For interior or remote regions not serviced by private couriers, we rely on India Post to ensure complete coverage.
We make every effort to dispatch orders on the same day they are placed or within 24 hours of receiving the order. Orders placed before 1 PM (IST) are typically shipped the same day, while those placed after 1 PM are scheduled for shipment the next working day.
This level of commitment applies throughout the week, including weekdays, and often extends to weekends and public holidays to serve our customers better.
We also offer local self-pickup options for customers in nearby areas—available on weekdays and partially available on weekends.
Warranty
This item is covered by a 7-day limited warranty from the date of delivery, applicable only to manufacturing defects. This warranty is provided solely to protect customers against any such defects. In the unlikely event of an issue, replacement or reimbursement will be offered after a complete inspection and confirmation of the defect.
What voids the warranty?
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Note: For your peace of mind, all electronic items are imported and, as such, do not come with a manufacturer’s warranty or guarantee. However, we take great care to ensure product quality—each item is thoroughly inspected before dispatch.
Other Info
- Country of origin: China
- Packer/ Importer: Ercoms Robotics Lab
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Limit Switch Big strip with Lever & Roller
₹45.00Original price was: ₹45.00.₹38.00Current price is: ₹38.00.Add to cart Buy nowQuick Review:
- Operating temperature: -40C to 70C
- Rated voltage: AC 125V-250V
- Current rating: 15A
- PCB Terminals Circuit Board
- With Roller Lever Limit
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
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- Length: 0.5 meter
- Material: PVC
- Inner Diameter: 6mm
- Outer Diameter: 8mm
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
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2 Channel 5V With H/L Level Trigger Relay Module With Optocoupler
₹220.00Original price was: ₹220.00.₹189.00Current price is: ₹189.00.Add to cart Buy nowQuick Review:
- Relay Type : Low-Level Trigger
- Logic Input (V): 3.3 ~ 5
- Trigger Voltage (VDC): 5/12/24
- Switching Voltage (VAC): 250@10A
- Switching Voltage (VDC): 30@10A
- 2 LEDs to indicate when relays are ON.
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Bulk Quantity? Let’s Talk!
Availability:
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4CH RC Toy Car Remote Control 27MHz Transmitter & Receiver Board
₹349.00Original price was: ₹349.00.₹199.00Current price is: ₹199.00.Add to cart Buy nowQuick Review:
- No of Channel: 4
- Ideal for Toy Cars
- Compact PCB Design
- Stable Signal Transmission
- Operating Voltage: Voltage: 3.7~6Volt
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
Availability:
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FT232RL USB to TTL Serial Adapter Module
₹149.00Original price was: ₹149.00.₹139.00Current price is: ₹139.00.Add to cart Buy nowQuick Review:
- Material: PCB + Electronic Component
- Support: 3.3V, 5V
- Main Color: Red
- Chipset: FT232RL
- USB power has over current protection, using 500MA self-restore fuse
- RXD/TXD transceiver communication indicator
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Bulk Quantity? Let’s Talk!
Availability:
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Wireless Power Transmission– Science Hobby Project
₹1,149.00Original price was: ₹1,149.00.₹999.00Current price is: ₹999.00.Add to cart Buy nowQuick Review:
- Wireless Mobile Charging
- Electric Vehicle (EV) Wireless Charging
- Medical Implants & Wearables
- Industrial Automation Systems
Shipping: Usually delivered in 3-7 days.
Hand Made || 100% Working || Free Online Demo Class On Video.
Need in Bulk Quantity? Let’s Talk!
Availability: On Pre Order.
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₹89.00Original price was: ₹89.00.₹49.00Current price is: ₹49.00.Add to cart Buy nowQuick Review:
- Shaft Length: 25 mm,
- Shaft Diameter: 6 mm,
- Shaft Material: Mild Steel,
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Square Shaft With Length-8 inch Material-MS
₹35.00Original price was: ₹35.00.₹30.00Current price is: ₹30.00.Add to cart Buy nowQuick Review:
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6mm Shaft Length-3 inch Metal Rod
₹35.00Original price was: ₹35.00.₹25.00Current price is: ₹25.00.Add to cart Buy nowQuick Review:
- length- 3inch
- Inner Dia-6mm,
- Nut Dia- 3mm
- Material –MS Steel Polished
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Plastic TT Coupling for Mecanum wheels – 48mm, 60mm, 80mm
₹89.00Original price was: ₹89.00.₹69.00Current price is: ₹69.00.Read moreQuick Review:
- Material : Plastic + silicone rubber
- 6.71mm motor shaft coupling diameter
- 23.5mm motor shaft coupling length
- 27mm motor shaft coupling length
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
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Shaft/Rod Length-5 inch Dia-2mm
₹15.00Original price was: ₹15.00.₹12.00Current price is: ₹12.00.Add to cart Buy nowQuick Review:
- length- 5inch
- Diameter-2mm,
- Material –MS Steel Polished
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
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BO Shaft To 6mm Shaft Extension Adapter No.547
₹25.00Original price was: ₹25.00.₹23.00Current price is: ₹23.00.Add to cart Buy nowQuick Review:
- Shaft Diameter: 6mm
- Shaft Length: 22mm
- Adopter Dia: 6mm
- Screw Nut/Hole: 3mm
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
Availability:
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BO Shaft To 2mm Shaft Extension Adapter (1Pcs)
₹28.00Original price was: ₹28.00.₹23.00Current price is: ₹23.00.Add to cart Buy nowQuick Review:
- Shaft Diameter: 6mm
- Shaft Length: 27mm
- Adopter Dia: 2mm
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
Availability:
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Shaft/Rod Length-3 inch Dia-2mm
₹10.00Original price was: ₹10.00.₹9.00Current price is: ₹9.00.Add to cart Buy nowQuick Review:
- length- 3inch
- Diameter-2mm,
- Material –MS Steel Polished
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Quantity? Let’s Talk!
Availability:

















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