| Model No. 50-8 FELLOWS ( Bourn & Koch )”Hydrostroke" |
| 6-Axis “CNC” Gear Shaping Machine |
| Serial No. 35838 (New 1986, factory rebuild-retrofit/2005) |
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| Suitable for cutting the cutting of internal/external straight spur |
| gears, splines, and other work-pieces of similar profile up to 50" |
| (1270mm) diameter, 8” (203.2mm) face-width |
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| EQUIPMENT / FEATURES: |
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| CONTROL FEATURES - |
| GE-FANUC 16i-M "CNC" Controller, with gear shaping software, color LCD display, and |
| “user friendly” conversational dialogue program with prompts for easy operator entry/input |
| of desired cutting parameters. The CNC will control the following motions/axes: - Work table rotation (no change gears required) - Cutter spindle rotation - Work table infeed |
| - Cutter spindle stroking speed - Stroke position |
| Both work and cutter spindle have rapid rotation for indicating purposes |
| Four cut capability selectable via the CNC with stroking speed, depth feed rate, |
| depth of cut and rotary feed infinitely variable, |
| with individual parameters preset for each cut as follows: |
| - Depth of cut - Infeed rate - Stroking speed - Rotational feed rate |
| - Degree of work rotation |
| Rotary feed: The custom software on the Fanuc controller allows direct input of rotary feeds for each cut |
| High output, quick return, infinitely variable stroking drive with adjustable return ratios as follows: |
| 12 to 500 SPM at 2:1 ratio |
| 12 to 300 SPM at 3:1 ratio |
| Digressive Infeed (infeed per stroke diminishing from a preset high value at beginning of cut to a preset low value at depth) |
| Re-cut mode allows the operator to bring the part into size without changing the programmed parameters. |
| Setups can be stored in nonvolatile memory using a setup number between 1-9990 |
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| ADDITIONAL FEATURES / EQUIPMENT |
| Adjustable cutter positioning at top of stroke |
| Crowning and taper capability via back off cam |
| Complete "Hydrostroke" hydraulic power unit |
| Constant pressurized lubrication to all working elements |
| 6-Jaw, 42” diameter, 5-1/8” height, chuck for work-table (w/o jaws). |
| Mechanical straight spur guide for cutter spindle |
| Extended 6” (152mm) sub-base assembly providing for 26.5” (673mm) |
| total work-piece and fixture clearance height |
| Full complement of electrics (motors/controls) wired for 460V 60Hz |
| Electrical switch-gear with fully air-conditioned electrical cabinet |
| Self-contained coolant system w/magnetic chip conveyor |
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| PRINCIPAL SPECIFICATIONS: |
| Maximum diameter external gear (PD) | 50" (1270mm) |
| Minimum diameter external gear (Root Diameter |
| minus diameter of cutter) | 7.08" (180mm) |
| Maximum diameter internal gear (Minimum dia. |
| minus 2X rim thickness/vert.lift) | 51.18” (1300mm) |
| Minimum center distance work-spindle centerline to |
| Work-table centerline | 3.55” (90mm) |
| Max. diametral pitch (spur & helical) | 2 DP (12.7 Mod) |
| Maximum face width | 8" (203mm) |
| Max. helix angle (w/proper guide & 7"PD cutter) | 40-degrees |
| Work index wheel diameter | 40" (1016mm) |
| Work table diameter | 44.09" (1120mm) |
| Work table spindle bore diameter | 11.2" (280mm) |
| Maximum load on worktable | 11,000 lbs (5,000 kG) |
| Maximum distance centerline of cutter spindle |
| to centerline of work spindle | 30.9" (785mm) |
| Minimum distance centerline of cutter spindle |
| to centerline of work spindle | 3.55" (90mm) |
| Maximum distance from table surface to top of cutter-ram w/spindle in maximum upper position (with a 150mm, 5.906” riser) | 26.5" (673mm) |
| Machine Dimensions: | 96"x147”x215” (2438x3734x5461mm) | |
| Machine net weight, approx. | 30,000 lbs. (13,363 kG) |
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| PRICE: $89,500.00 |