Mechanical Parts are structural and motion hardware components used to build robot arms, drivetrain assemblies, and precision mechanisms. From ball bearings and aluminum couplers to drill chucks and flywheels, these mechanical products give strength, precision, and smooth motion to robotics and DIY builds. Best price guaranteed with fast delivery across India.
Showing 1–12 of 18 results
DIY Kit 4 DOF Robot Manipulator Arm Mechanical Arm Kit (non-including Servo)
Out of stock
DIY Robotic Arm Kit with Wired Control | STEM Educational Kit for Kids Age13+
In stock
What are Mechanical Parts?
Mechanical Parts are hardware components that handle force transfer, rotation support, shaft coupling, and structural reinforcement in robots and mechanical systems. Ball bearings reduce friction between rotating shafts and fixed frames. Aluminum couplers connect two motor shafts end to end for torque transfer. Drill chucks allow motors to grip drill bits for machining builds. A common example in Indian college robotics projects is using a 626ZZ ball bearing with mini z bearing size to support a spinning shaft in a compact robotic arm joint for smooth rotation under load.
Robot Mechanical Parts Available at StemVolt
- 626ZZ Deep Groove Ball Bearing—Low-friction mini z bearing for supporting rotating shafts in compact robot joints and mechanisms
- B10 Drill Chuck 0.6-6mm for 775 Motor — Precision drill chuck for 555 motor and 775 motor shaft for DIY drilling machine builds
- Aluminium Fly Wheel 11.5cm — Weighted aluminium flywheel for energy storage and smooth speed stabilisation in motor builds
- Aluminum Coupler Shaft Connector — Rigid aluminum coupler for connecting two shafts end to end in robotic arm and drivetrain builds
- Also explore: Gears, Pulleys and Belts
- Also explore: Batteries and Power Supply
- Also explore: Drone Frame and Parts
How to Choose the Right Mechanical Parts
Choose based on the specific function your build needs. For supporting rotating shafts in a robot joint or wheel hub, match the ball bearing price and size to your shaft diameter exactly. For connecting two shafts, an aluminum coupler must match both shaft diameters. For adding drilling capability to a 775 motor, a B10 drill chuck for 555 motor and 775 is the direct fit. One practical tip: always check the inner diameter of any bearing or coupler against your exact shaft diameter using a vernier caliper before ordering, as nominal sizes vary by 0.1 to 0.2mm between brands and cause loose fits under load.
Why Buy Mechanical Parts from StemVolt
StemVolt is a real robotics parts store in Rajasthan that ships products that have been checked for quality all over India. Every order comes with fast shipping and safe payment, so you can relax.