Spiroid Gears for Hypoid???
Spiroid Gears for Hypoid???
(OP)
I am going through some papers, according to some russian dr., spiroid gears could be used more efficiently instead of hypoid gears. I am trying to get things to gether if it is doable and what are the disadvantages and advantages. could it be manufactured with the same equipment, cost etc.,
I will really appreciate if someone has any idea i'll be more then happy to discuss further.
Thanks
I will really appreciate if someone has any idea i'll be more then happy to discuss further.
Thanks





RE: Spiroid Gears for Hypoid???
RE: Spiroid Gears for Hypoid???
Regards
pat
RE: Spiroid Gears for Hypoid???
RE: Spiroid Gears for Hypoid???
I think Pat is talking about pick-up trucks, which are essentially light-duty oriented. That is to say the technology comes from the LD direction.
Efficiency is very important for the Heavy-Duty truck operators since fuel costs are such a major percentage of their operating costs. Heavy trucks typically use worm reduction, or on-center hypoid reduction gears. Yes, the rolling friction of straight bevels would be more efficient than the sliding friction of worm and hypoid, but the very high torque loadings require that the load be shared across multiple teeth at any one time.
PJGD
RE: Spiroid Gears for Hypoid???
If the diff. doesn't have to have a large reduction, it can be stronger.
RE: Spiroid Gears for Hypoid???
Optimizing the system may lead to more reduction in the final drive and less in the transmission!
Truckers, believe it or not, are weight-sensitive, too!
The whole vehicle is limited to a max GVW. The less the vehicle weighs, the more payload they can haul!
cheers
Jay
Jay Maechtlen
RE: Spiroid Gears for Hypoid???
So, since the ring gear will have the same no. of teeth, it is better to deliver the input torque to more of them via a larger drive pinion.
RE: Spiroid Gears for Hypoid???
Also, I thought we were really referring to heavy over-the-road transport, where ground clearance is generally not in question?
Jay Maechtlen
RE: Spiroid Gears for Hypoid???
How much money is open to question-perhaps 1% or even less. Gear designers obviously know all about this, but knowledge doesn't always result is a well designed whatever.
RE: Spiroid Gears for Hypoid???
Eaton / Dana/Spicer
http://www.roadranger.com/products/axle/axle.htm
Jay Maechtlen
RE: Spiroid Gears for Hypoid???