4” Omni Wheel
Mobilize your robot chassis with the new Actobotics 4” omni wheel available from ServoCity. Omni
wheels can be used just like regular drive wheels, but they
have the advantage of being able to roll freely
perpendicular to the drive direction. The 10 rubber rollers
around the circumference of the wheel provide excellent
grip to excel in moving in the forward direction.
Each roller is mounted on a stainless steel sleeve which
rests on a stainless steel axle to allow the rollers to rotate
freely and independently from one another. Multiple wheels
can be mounted to one another by installing an 1/8”
spacer between the wheels to provide adequate clearance
The wheels can be clocked so that the rollers are
staggered evenly, which smooths out the circumference and
increases load-bearing capabilities. The wheels have a 1/2”
center hole, and numerous mounting options are provided,
including the standard 0.77” and 1.50” hub patterns for
using with other Actobotics parts. These wheels can reduce
the amount of torque necessary to turn, while decreasing
the turning radius of your chassis. Price is $9.99.
Ball Bearing Wheel Mount
This wheel adapter from ServoCity is intended to be used with their five-spoke pneumatic tire/wheel. This piece is
machined to perfectly mate with the interior shape of the
molded wheel so that the adapter and the wheel will turn
as one. The adapter houses a 1/2" ID ball bearing so that
the assembly can be slid onto a fixed shaft and then rotate
freely on that shaft. The 1.5" Actobotics hub pattern is
machined into the adapter so that a sprocket or gear can
easily be attached to the outside of it to drive the wheel
A single wheel adapter can be used, and the other side
of the wheel can be supported by one of the stock bearings
included with the pneumatic tire/wheel, or an adapter on
each side can be utilized for a more symmetrical setup.
ServoCity recommends running a 1/2" shaft spacer
next to the bearing installed into the adapter in order to
provide proper clearance between the bearing and the
surface that it's running next to. Price is $15.99.
Tapped Wheel Mount
This wheel adapter available from ServoCity is also intended to be used with their five-spoke pneumatic
tire/wheel. This piece is machined to perfectly mate with
the interior shape of the molded wheel so that the adapter
and the wheel will turn as one. The adapter has the large
1.5" hub pattern with 1/4"
through-holes machined into the face so that ServoCity’s 1"
HD clamping hub can be attached using 1/4-20 low-profile
socket head screws.
By installing a clamping hub onto the adapter, the
wheel assembly can be secured onto a 1" shaft. This style
adapter is commonly used in conjunction with an axle that
is mounted in bearings so that the axle and wheel can
rotate in unison. Price is $14.99.
For further information, please contact:
20 SERVO 05.2017