Caster wheel [Wheel diameter] 25mm [Wheel height 35 mm

The Caster wheel with a 25 mm wheel diameter and a 35 mm height is a compact free-turning support wheel for small robots. Fitted under the chassis, it rolls and turns in any direction, letting a two-wheel-drive robot steer by running its motors at different speeds while the caster carries part of the weight and keeps the body level. Its low height suits small, light robot cars.

Caster wheel Specifications

• Wheel diameter: 25 mm
• Height: 35 mm
• Type: free-turning caster (support) wheel
• Use: third support point for two-wheel-drive robot chassis

Caster wheel Applications

• Small 2WD Arduino and ESP32 robot cars
• Line-following and maze-solving robots
• Light carts and moving models
• School robotics clubs and STEM kits

What's in the Box

• 1 × caster wheel, 25 mm diameter

Tip: Before mounting, measure the gap between the bottom of your chassis and the floor with the drive wheels fitted; it should be close to the 35 mm caster height so the robot sits level. Add spacers or standoffs if the caster is too short, and place it at the opposite end from the driven wheels.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.