My father bought this grinder from Harbor freight back in 1976. I sharpened his lawnmower blades on it 100 times. It’s had good use over the past 47 years, but finally the bearings died. This is probably my fault because I never bothered to vacuum the dirt out of the housing as I didn’t know it had vents that let the dirt in.
First I had to get the wheels and the guards off which required one 13/16 wrench and a screwdriver.
Next you have to pull the bearing housings off of the shaft. I used three, 3 inch long, number 10 screws.
I used the guards, back to back, as my press frame. There it is assembled. Here’s looking at the backside. You can see I’ve used a bolster and a press plate, and the nut to protect my threads.
You can see here the bolster, which is a big washer with three notches in it to clear the screws. The little rectangle is my press plate. The bearing was a 6203 size, available at almost any hardware store.
Once you have the housing off you can find that the bearing either sticks to the housing or the shaft. I had one of each. Here’s the one that stuck to the shaft and I removed it with a small gear puller.
The other side came out by using a socket and a couple taps of the hammer.
Two new bearings from the local Ace Hardware set me back almost $32 with tax. I could get them online for half the price but then I’d have to ship them and wait. I am able to ride my bicycle, as it’s only half a mile to Ace.
Except for the fact that you must clean everything, reassembly is quite easy.
First I had to get the wheels and the guards off which required one 13/16 wrench and a screwdriver.
Next you have to pull the bearing housings off of the shaft. I used three, 3 inch long, number 10 screws.
I used the guards, back to back, as my press frame. There it is assembled. Here’s looking at the backside. You can see I’ve used a bolster and a press plate, and the nut to protect my threads.
You can see here the bolster, which is a big washer with three notches in it to clear the screws. The little rectangle is my press plate. The bearing was a 6203 size, available at almost any hardware store.
Once you have the housing off you can find that the bearing either sticks to the housing or the shaft. I had one of each. Here’s the one that stuck to the shaft and I removed it with a small gear puller.
The other side came out by using a socket and a couple taps of the hammer.
Two new bearings from the local Ace Hardware set me back almost $32 with tax. I could get them online for half the price but then I’d have to ship them and wait. I am able to ride my bicycle, as it’s only half a mile to Ace.
Except for the fact that you must clean everything, reassembly is quite easy.
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