Re: [CAD_CAM_EDM_DRO] Re: Need ballscrew support Bearings.

Scott,

I'd just call a bearing house and have them cross-referenced to a standard taper cone and roller bearing. Will they hold up? They take the radial loads of large trucks. Tires dragging in multi axle setups on turns. I'd say they'd hold up. Probably better than what came with the machine.

I would think the tolerances, will be very close.

Trying to buy bearings from the manufacturer, they are going to get all they can.

Ron



Polaraligned <polaraligned@...> wrote:
I need BOSS 4 ballscrew bearings:

I just got off the phone with Hardinge and they quoted me $650/pair
for the X-axis set, $875/pair for the Y-axis set, and for giggles
$4135 for the X-axis ballscrew/ballnut assembly. I know where to get
a NOS Y-axis ballscrew for $750. How bad does Hardinge screw you on
parts?

Do I need the high contact angle (65 degree)angular contact bearings?

Can I use the lower contact angle (35 degrees) angular contact
bearings? Or will they not be able to handle the loads.

What if they are not a matched pair?
I am not looking to have to sell my left kidney here, but I do not
need the bearings to fail in short order.

Any other input on bearings anyone?

The bearings I need are:(in pairs)
X- 80mm od, 50mm id, 16mm wide
Y- 52mm od, 25mm id, 15mm wide

Thanks,
Scott






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