VRB High Precision Planetary Gearbox

VRB series is one of FHTW helical gear precision planetary gearboxes,its innovative helical teeth safeguard low-noise operations. This precision planetary gearbox minimizes vibrations, and therefore increases the quality of your workpiece surfaces even under the highest bearing loads.

VRB planetary gearbox is a direct connection type with round body.It is with shaft output,and the output flange is square.The Self aligning input flange makes VRB planetary gearbox connect fast with any motor output shaft.

VRB planetary gearbox reducer has a large range of speed ratio,it has single stage and double stage.Single stage ratio:3,4,5,6,7,8,9,10 ;Double stage:15,20,25,30,35,40,45,50,60,70,80,90,100.

AS a helical gear reducer,VRB planetary gearbox is widely used in all kinds of transmission fields,such as CNC bending machines,machine tools,printing machines,manipulator arm,automobile making,etc.

(1)Quiet operation
Helical gears contribute to reduce vibration and noise
(2)High precision
Standard backlash is arc-min,ideal for precision control
(3)High rigidity&torque
High rigidity&high torque were achieved by uncaged needle roller bearings
(4)Adapter-bushing connection
Can be attached to any motor all over the world
(5)No grease leakage
Perfect solution using high viscosity anti-separation grease.
(6)Maintenance-free
No need to replace the grease for the life of the unit.Can be attached in any position.

VRB series precision planetary gearbox can connect to any brand of servo motors and stepper motors.

VRB single stage reduction ratio:3, 4, 5, 6, 7, 8, 9, 10

VRB double stage reduction ratio:15,20,25,30,35,40,45,50,60,70,80,90,100

How to choose a correct VRB model?

(1)Check your motor drawing,offer the below dimensions:

φS:shaft diameter

LB:motor convex circle diameter

φLA:motor flange PCD

LS:shaft length

LE:motor convex circle thickness

φLZ:motor mounting hole size

Then compare these dimensions to our gearbox dimensions(refer to our catalogue)you can probably know the frame size of our gearbox.

(2)What’s the ratio or output speed you need?Check if the gearbox output torque＞motor torque*ratio

Ratio i=Input speed(RPM)/gearbox output speed(RPM)

Motor torque(N.m)=9550*motor power(KW)/motor speed(RPM)

(3)Make sure the precision(backlash)you need,then you can know which type of gearbox you need.

(4)If you don’t have the information above,please just tell us the motor brand and type,output speed or output torque you need,then we are pleasure to help you choose a suitable model.

Moment of Inertia

(1) Single stage(Ratio:3,4, 5, 6,7, 8,9,10)

Unit:mm

Note 1:Inside of ()is the optional range of sizes,outside of ()is the standard sizes.
Note 2:The reducer output shaft size and length can be customized for customers.
Note 3:Input sizes can be subject to changed according to kinds of servo motor or stepper motor size.

(2) Double stage(Ratio: 12,15,16,20,25,28,30,35,40,50,70,80,100)

unit:mm

Download VRB catalogue