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Questions ? Call us at 905-624-5536 |
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Replacement Milling Machine Heads. |
| We have 4 different milling heads available 1) an 8 or 16 speed belt change Bridgeport style head 2) a variable speed Bridgeport style head 3) an inverter Bridgeport style head with 6,000 rpm 4) a heavy head with 5 / 7.5 Hp, #40 spindle and 6,000 rpm |
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| Replacement head on an old Brigdeport |
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| The two pictures below show the standard bearings on an R-8 Bridgeport type machine on the right. And on the left the 4 bearing set up of Topwell's # 40 spindle upgrade. You can see that there are 2 precision bearings at the bottom or the R-8 spindle and a set of 3 precision bearings on the #40 spindle. Both spindles have a standard bearing up at the top.  |
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 A shipment of milling heads received into our shop for preparation to sell. |
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This diagram shows the moving parts in the top half of the GL head. It is in fact a lot like today's modern machining centers with the drive train consisting of 1) the motor shaft and pulley 2) the drive belt 3) the spindle pulley and splined coupling 4) The spindle itself ( not shown ) There are about 85 fewer moving parts. Maintenance is near zero and is normally only a replacement of the timing belt after years of service. The RG verson of the head has a back gear pair. |
Adaptor Drawings and Photos |
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Bridgeport sized head |
H-D #40 taper head |
