LowEnergyParticle
Cast Iron
- Joined
- Jul 26, 2004
- Location
- Beaumont, near Houston
I am replacing the 4 bearings in a Hardinge HLV-H carriage power drive. There are 2 at either end of the armature, and 2 in a capsule whose axis is at a right angle to the armature and contains the worm driven gear and the gearbox output gear.
The bearing I'm having trouble with is the inboard armature bearing, that is, the armature bearing closest to the worm gear.
Best I can come up with so far is to remove the outboard armature bearing first, and then put a slide hammer on the armature to pull it away from the gearbox. If someone else has a better idea, I'd sure like to hear it. Also, down in the bottom left of the attached picture there are 2 holes in the gearbox casting. The upper small one seems to be a vent for the motor case, but the lower one seems strange: it's bored all the way through to the outside shell of the bearing, but in situ it is pointed downwards so it's not a defunct oiler hole. Anybody know what it was for?
Thanks very much!
Dave
The bearing I'm having trouble with is the inboard armature bearing, that is, the armature bearing closest to the worm gear.
Best I can come up with so far is to remove the outboard armature bearing first, and then put a slide hammer on the armature to pull it away from the gearbox. If someone else has a better idea, I'd sure like to hear it. Also, down in the bottom left of the attached picture there are 2 holes in the gearbox casting. The upper small one seems to be a vent for the motor case, but the lower one seems strange: it's bored all the way through to the outside shell of the bearing, but in situ it is pointed downwards so it's not a defunct oiler hole. Anybody know what it was for?
Thanks very much!
Dave