• Model NO.：WH7-72-RH
• Output Speed：1.5rpm
• Gear Ratio：72:1
• IP Class：IP65
• Static Axial Load：133kn.M
• Static Radial Laod：53 Kn.M
• Precision：0.15
• Mechanical Efficiency：40%
• Dynamic Axial Rating：32kn
• Dynamic Radial Rating：28kn
• Transport Package：Standard Exporting Package with Vci
• Specification：WH7-72-RH
• Trademark：Coresun Drive
• Origin：Changzhou
• HS Code：8483409000
• Production Capacity：5000PCS,Month

Model

WH7

Place of Origin

Changzhou,China

Brand

Coresun Drive

Self-locking

Yes

Material

42CrMo,50Mn

Output Torque

1.46kN.m

Tilting Moment Torque

13.5kN.m

Holding Torque

10.4kN.m

Static Axial Rating

133KN

Static Radial Rating

53KN

Dynamic Axial Rating

32KN

Dynamic Radial Rating

28 KN

Gear Ratio

71:1

Mounting Bolts

M12

Hydraulic Motor

Yes

HS Code

8483409000

The slewing drive device can be basically divided into (single worm drive and double worm drive)

Features of worm gear and worm mechanism:

1. Can get a lot of power transmission, than the staggered shaft helical gear mechanism compact.

2. The meshing surfaces of the two wheels are in line contact, and the bearing capacity is much higher than that of the staggered shaft helical gear mechanism.

3. Worm transmission is equivalent to spiral transmission, which is mostly tooth meshing transmission, so the transmission is stable and the noise is very small.

4. With self-locking, when the leading Angle of the worm is less than the equivalent friction Angle between the meshing gear, the mechanism has self-locking, which can realize reverse self-locking, and can only drive the worm gear by the worm, but not by the worm gear.Such as in its heavy machinery used in the self-locking worm mechanism.Its reverse self - locking can play a role of security protection.

5. Low transmission efficiency and severe wear.When worm gear meshing transmission, the relative sliding speed between meshing gear teeth is large, so the friction loss is large and the efficiency is low.On the other hand, the tooth surface of the relative sliding speed is severely worn and heated. In order to dissipate heat and reduce wear, expensive materials with good wear resistance and good lubrication devices are often used, so the cost is relatively high.

6. Large axial force of worm

Coresun Drive slewing drive WH7 worm shaft,casting housing, slewing bearing machining and testing report