Weatherproof and low starting torque housing - Possible?
Weatherproof and low starting torque housing - Possible?
(OP)
My requirement is for a bearing housing that is reasonably weatherproof (i.e. OK for outdoor use), and maintains very low starting torque (e.g. a non-contact labyrinth shield of some sort).
Currently my housings are bored out of Al round .75" to 1.375" d., use R4, R6, or R8 ss Conrad bearings (double shielded with oil lubrication) with spacers on a shouldered ss shaft, held in place at the housing opening with a retaining ring. Very low rpm (variable under 15 rpm) and very light loads (under 35 lbs axial and thrust on a set of two R8's).
These housings are embedded in the turning part and turn 360 degrees freely and are in turn rotated through all angles - outside in all climates -40 to 120F.
I am looking, ideally, for a machinable, inexpensive means of preventing water from entering the housing that can come to rest at any angle. It would be undesirable (but perhaps unavoidable) to have a grease filled housing with a zert, due to grease leakage and increased friction.
Any advise on designs or possible sources of info would be appreciated (I hope this isn't a holy grail).
Thanks, Bob
Currently my housings are bored out of Al round .75" to 1.375" d., use R4, R6, or R8 ss Conrad bearings (double shielded with oil lubrication) with spacers on a shouldered ss shaft, held in place at the housing opening with a retaining ring. Very low rpm (variable under 15 rpm) and very light loads (under 35 lbs axial and thrust on a set of two R8's).
These housings are embedded in the turning part and turn 360 degrees freely and are in turn rotated through all angles - outside in all climates -40 to 120F.
I am looking, ideally, for a machinable, inexpensive means of preventing water from entering the housing that can come to rest at any angle. It would be undesirable (but perhaps unavoidable) to have a grease filled housing with a zert, due to grease leakage and increased friction.
Any advise on designs or possible sources of info would be appreciated (I hope this isn't a holy grail).
Thanks, Bob





RE: Weatherproof and low starting torque housing - Possible?
I also have a possible solution to your contaminant problem. It is called the TRAKSEAL from Transcom Inc. Their phone number is 1-800-328-2840. I have heard use of this seal preventing bearing contamination in the rollers of a track-driven loader. It has not yet been cost effective for my projects, but maybe your product has enough annual volume to justify this type of seal.
RE: Weatherproof and low starting torque housing - Possible?
RE: Weatherproof and low starting torque housing - Possible?