McConnel gearbox help!

mf298 · Jul 5, 2014

I have an old McConnel PA44 with Flail form about 1980. The bearings in the gearbox that drives the pump have died. When I measure them they appear to match metric sizes. Outside diameter 90mm, inside 50mm and 20mm wide. As the rest of the parts are all imperial is it likely that the bearings would be metric?
Anybody out there got any thoughts or comments please?? TIA

Barleycorn · Jul 5, 2014

A lot of hydraulic pumps are made in Italy, so I should think that it may well be metric.

It is quite common for Italian pumps to use BSP fittings.

bobk · Jul 5, 2014

mf298 said:
I have an old McConnel PA44 with Flail form about 1980. The bearings in the gearbox that drives the pump have died. When I measure them they appear to match metric sizes. Outside diameter 90mm, inside 50mm and 20mm wide. As the rest of the parts are all imperial is it likely that the bearings would be metric?
Anybody out there got any thoughts or comments please?? TIA

This it

http://simplybearings.co.uk/shop/p241/FAG 6210 Open Type Deep Groove Ball Bearing 50x90x20mm/product_info.html
http://simplybearings.co.uk/shop/p1536/FAG 62102Z Metal Shielded Deep Groove Ball Bearing 50x90x20mm/product_info.html

cheaper

http://www.ebay.co.uk/itm/6210-2RS-...463?pt=LH_DefaultDomain_3&hash=item4a9ba70def

Kevtherev · Jul 5, 2014

You can get a complete alloy gearbox off flow fit hydraulics.
Did bearings on old Hy reach once and not much good as the alloy housings had worn and the bearings turned.

Pheasant Surprise · Jul 5, 2014

Barleycorn said:
A lot of hydraulic pumps are made in Italy, so I should think that it may well be metric.

It is quite common for Italian pumps to use BSP fittings.

Yes I found this too. Gearboxes use BSP fittings on the drain plugs and check plugs when I replaced the latter with 3/8" screw in alloy sight glass fitting.

multi power · Jul 5, 2014

Kevtherev said:
You can get a complete alloy gearbox off flow fit hydraulics.
Did bearings on old Hy reach once and not much good as the alloy housings had worn and the bearings turned.

i got a compleate gearbox n pump a few yearsago from howford hydrulics wasnt that dear either

Pheasant Surprise · Jul 5, 2014

Kevtherev said:
You can get a complete alloy gearbox off flow fit hydraulics.
Did bearings on old Hy reach once and not much good as the alloy housings had worn and the bearings turned.

I think it's the bearings in the gearbox he needs Kev, the 'box in these should be cast iron housing and the pumps either alloy or iron housing, Pavesi or Comer boxes usually.

Kevtherev · Jul 5, 2014

Pheasant Surprise said:
I think it's the bearings in the gearbox he needs Kev, the 'box in these should be cast iron housing and the pumps either alloy or iron housing, Pavesi or Comer boxes usually.

Pa 44 machines have an alloy gearbox case same as Hy reach.
Mcconnel only started cast iron boxes on later models like the pa 500 etc.
Pa 93 had alloy gearboxes

mf298 · Jul 5, 2014

Thanks to all!
It is the gearbox bearings I need and the housing is alloy. I had the found the ones on Simply Bearings site, was not convinced that bearings would be metric and rest of fittings imperial - down to UNF nuts and bolts to hold it together! I hear what is said about bearings turning in housing but will use bearing tite and take a chance as machine does not do much work.

McConnel gearbox help!

mf298

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bobk

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Kevtherev

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Pheasant Surprise

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multi power

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Pheasant Surprise

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mf298

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