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Thread: Machinery Skate Bearings
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27th Aug 2020, 12:50 PM #1Golden Member
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Machinery Skate Bearings
Looking to make some machinery skates to move some machines that are arriving soon (hopefully these won't fall off the forklift!!!).
What type of bearing should I be looking to use on the top to allow the skate to swivel under the machine? I have looked at thrust bearings and they tend to be flat bearings with either balls of rollers between 2 separate washer looking bits. There are also the bearings that are used in a clutch as the thrust/release bearing which are larger and seem to be ball type only.
I am looking to have each skate handle 1,000kg (maybe a little more). An ID of 12-30mm and OD of up to 90mm would fit - I am designing around the bearings although the C-channel I will use is 100mm wide.
Rather than looking at the SKF catalogues and not really knowing what I am doing I thought I would ask the brains trust!!
Cheers
PS - using pallet jack front rollers as the wheels
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27th Aug 2020, 03:18 PM #2Most Valued Member
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Last homemade set I saw was done with tapered roller bearings on the top (trailer bearings most likely because they were cheap). The top of the skate had a press fit ring welded onto it which seated the cup, the turntable was machined to hold the race and cover the moving parts. Seemed to work ok.
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27th Aug 2020, 04:50 PM #3Most Valued Member
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I'd be leaning towards tapered rollers too. I wouldn't trust a clutch thrust bearing to support a load.
If you did go down the path of a classic thrust bearing (eg 2 grooved plates and balls between), you'd want to have some provision for taking radial load as the thrust bearings are pure thrust/axial load only.
With the tapered rollers you'd still want to retain the turntables somehow to stop them falling apart when you pick them up - but in use both the axial and radial loads are taken care of by the bearing.
Steve
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27th Aug 2020, 11:25 PM #4Golden Member
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A trailer tapered bearing is designed to take a radial load but I guess it is also designed to handle a side load. Something like an SKF LM67048/10 is rated to 41.5KN static which is over 4 tonnes - should be plenty! It is also cheap as stated
Will give it a go.
Cheers fellas
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17th Oct 2020, 10:38 PM #5Golden Member
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Finally found time to finish off my machinery skates. Not tested yet but quite happy.
20201017_160632.jpg
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17th Oct 2020, 10:48 PM #6Most Valued Member
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Nice work. Where did you score the pallet jack front rollers as the wheels from??
Regards,
KrynTo grow old is mandatory, growing up is optional.
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18th Oct 2020, 05:43 PM #7Golden Member
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The nylon wheels came from Mitaco https://www.mitaco.com.au/products/n...k-front-roller
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18th Oct 2020, 07:21 PM #8Most Valued Member
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I’d be be happy with those too. Well executed.
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