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South Korea
Contact Person Mr. Seongho
Changwon, Gyeongsangnam-do
HOURGLASS WORM GEAR
Gearing devices generally used in transmittin motionbetween two
axes which are operating neither inparallel nor intersecting
each other are worm gears,hypoid gears and screw gears of which
worm gearsoperate in line contact while the others in pointcontact.
Because of its line contact, a worm gear has supe-riority in road
capacity, even though the contact areaof a hypoid gear has
been widened by the latesttooth cutting method.
On the other hand a worm gear has a defact to havea high
relative sliding rate at its contact point. Nevertheless, a higher
load capacity and efficiencyare expectable in an Hourglass Worm
Gear, becauseof its unique interlocking condition which enables,
ashas been proved in hydrodynamics, output of a higherpressure in a
given oil film, through a specially design-ed relative curvature of
tooth face at contact pointand sliding direction.
1. Increased Simultaneous Iterlocking
Number of teeth interlocking at a time may be more than
tripled as compared with a cylindrical wormgear.
2. Improvement in Contact-Line Position
A contact-line position, or a contact area can be improved by
way of changing an inclination angle of a worm tooth.
Fig.3 shows a good contact area.
3. Reduced Size & Weight
As is shown it Fig. 4, the size of a wheel may be made
smaller by about 30% as compared with acylindrical worm gear,
resulting in considerable reduction also in weight.
4. Grindability
The teeth surfaces both of a worm and, a worm wheel
may be ground.
5. Reduction in Pressure on Unit Surface
As is explained in the above, pressure on a unit surface
is decreased, resulting in reduction of tem-perature rise
and wearing.
6. Requires no Correction
In conventional hourglass worm gears, including both
Hindley
type and Lorentz type, correction is required to obtain a
proper
contact area, while in Hit worm gears, a proper contact area is
obtainable with no correction required.Further, a Hit worm gear
has an adquate entrance clearance, resulting in high
reliability
against burn.
7. Durable Bearing
Ball-and-roller bearings are used in our standard models and
they are designed to be sufficiently strong in meeting any
demands
by out customers.Special considerations are also given to a
sealing
device to protect bearings from dusts or any other foreign
materials.
| Country: | South Korea |
| Model No: | - |
| FOB Price: | Get Latest Price |
| Place of Origin: | - |
| Price for Minimum Order: | - |
| Minimum Order Quantity: | - |
| Packaging Detail: | - |
| Delivery Time: | - |
| Supplying Ability: | - |
| Payment Type: | - |
| Product Group : | - |
