A few drops with a syringe in the spindle to body gap.
Spray in hole, or use syringe.
Thin oil, like 5W-20, sewing machine oil, front fork oil etc.
Those motors are not intended for service, durable, replacement is the only answer for many failed motors.
It takes time for oil to seep in, two days should do.
Spray in hole, or use syringe.
Thin oil, like 5W-20, sewing machine oil, front fork oil etc.
Those motors are not intended for service, durable, replacement is the only answer for many failed motors.
It takes time for oil to seep in, two days should do.
Those are sintered, if porous.
They are pressed into shape, like ceramic items, from a hard paste, and fired in a furnace, carbon and other particles burn out, and leave pores in the matrix, which store oil.
Panasonic is an innovator in this field, had some patents for their 'wave' type bearing.
Phosphor bronze and aluminum bronze are solid.
Of course, sintered bushes can be made from phosphor bronze. but it is not the only material suitable for this purpose.
The body is like a cup, a headache to open and reassemble, with brushes to set, which is why I said "Spray in hole, or use syringe."
Some oil should find its way to the right place on the blind side of the motor.
They are pressed into shape, like ceramic items, from a hard paste, and fired in a furnace, carbon and other particles burn out, and leave pores in the matrix, which store oil.
Panasonic is an innovator in this field, had some patents for their 'wave' type bearing.
Phosphor bronze and aluminum bronze are solid.
Of course, sintered bushes can be made from phosphor bronze. but it is not the only material suitable for this purpose.
The body is like a cup, a headache to open and reassemble, with brushes to set, which is why I said "Spray in hole, or use syringe."
Some oil should find its way to the right place on the blind side of the motor.
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You're right, more properly called sintered bronze bearings, typically phosphor-bronze which has good bearing properties anyway.