 Bearing device for a motor having a bearing set including multiple bearings of different materials |
| Accordingly, an object of the present invention is to provide a self-lubricating bearing device ... |
|
| High performance bicycle propulsion |
| Referring first to FIGS. 1 and 3, a typical power drive chain 10 includes pairs of like ... |
|
| Multi-phase permanent-magnet type electric rotating machine |
| In order to solve the foregoing problems, according to the first aspect of the present invention, ... |
|
| Bicycle with assist engine |
| This invention is adapted to be embodied in an engine assisted, manually powered vehicle. The ... |
|
| Two-phase permanent-magnet electric rotating machine |
| In order to achieve the above object, according to a first aspect of the present invention, the two-... |
|
| Torque detection device |
| Accordingly, an object of the present invention is to provide a torque detection device for ... |
|
| Front suspension with three ball joints for a vehicle |
| In view of the foregoing, one object of the present invention is to exploit the design elements of ... |
|
| Methods and apparatus for increasing power of permanent magnet motors |
| In summary, the present invention provides a method for increasing the power output of permanent ... |
|
| Submersible pump apparatus |
| According to the present invention, there is provided a fluid distribution or conduit means coupled ... |
|
| Power connection apparatus having integrated surge arrestor |
| I claim: 1. A power line unit having a least two power leads, an insulating shell encasing said ... |
|
|
Plain bearing
| Details |
Inventors: Davies, Glyndwr;
Assignee: AEPLC (Warwickshire, GB2)
Primary Examiner: Lechert, Jr.; Stephen J.
Assistant Examiner: Jorgensen; Eric
Attorney, Agent or Firm: Price, Heneveld, Cooper, DeWitt & Litton
A cavitation erosion resistant plain bearing comprising a steel backing, a sintered bronze interlayer and a lining of PTFE filled with 1 to 50% by volume of an ionic fluoride of low aqueous solubility. |
|
DETAILED DESCRIPTION I claim: 1.
A plain bearing comprising a metal backing, a sinter layer on said metal backing and a bearing layer on said sinter layer, said bearing layer comprising a surface layer of polytetrafluoroethylene (PTFE) including 1 to 50% by volume of an ionic fluoride selected from the group consisting of CaF.
sub.
2, MgF.
sub.
2, SrF.
sub.
2 and mixtures thereof precipitated from an aqueous solution and having a solubility in water which is less than 0.
5 g/cm.
sup.
3 at 18.
degree.
C.
, the ionic fluoride being in a finely divided form in the PTFE, the particle size being in the range from 0.
01 to 10 microns.
2.
A bearing according to claim 1 wherein said backing is of steel.
3.
A bearing according to claim 2 wherein said sinter layer is sintered bronze.
4.
A bearing according to claim 1 wherein said fluoride is a fluoride selected from the group consisting of CaF.
sub.
2, MgF.
sub.
2 and SrF.
sub.
2.
5.
A bearing according to claim 4 wherein said surface layer further incorporates metallic lead.
6.
A plain bearing as described in claim 1 wherein the particle size of said fluoride is in the range of 0.
1 to 1 micron.
7.
A plain bearing according to claim 1 wherein said fluoride is a combination of two or more of the fluorides selected from the group consisting of CaF.
sub.
2, MgF.
sub.
2 and SrF.
sub.
2.
8.
A plain bearing according to claim 1 wherein said fluoride is CaF.
sub.
2.
9.
A plain bearing according to claim 1 wherein said fluoride is CaF.
sub.
2 having a particle size in the range of 0.
1 to 1 micron.
10.
A bearing according to claim 1 wherein the ionic fluoride is precipitated CaF.
sub.
2.
11.
A bearing according to claim 1 wherein the ionic fluoride is precipitated CaF.
sub.
2 and has a particle size in the range of 0.
1 to 1 micron.
12.
A plain bearing comprising a metal backing, a sinter layer on said metal backing and a bearing layer on said sinter layer, said bearing layer comprising a surface layer of polytetrafluoroethylene containing from 1 to 50 volume percent of at least one ionic fluoride selected from the group consisting of CaF
|
|
Generators or Motors 
