Wheel Bearings

[Boilers2000]

What minimum psi should I look for in a grease gun to grease my trailer wheel bearings? 6,000 psi enough or do I need 7,000 psi or more. What about for hitting hinge and gimbal bearing zerk fittings?

 

[robert graham]

I don't know what the pressure is on my grease gun, but I doubt it's anything like 6000 PSI and I doubt that it matters as long as it can force the grease past the spring-loaded ball in the tip of the zerk fitting....

 

[Boilers2000]

I agree 6000 psi sounds high, but all the ones I was looking at where a min of 6000 psi max for a 14oz cartridge.

 

[Scott Danforth]

unless there is a problem, you will never need more than about 1000 psi

the 6000 psi guns are for tensioning the tracks on caterpillar bulldozers

 

[Boilers2000]

Thanks Scott...so the one with max 7000 psi that had a picture of a boat on it is probably overkill? glad I can scale it back.