JSTC

Schiess Vertical Gear Hobbing Machine

SCHIESS HEAVY DUTY UNIVERSAL GEAR HOBBER
MODEL #RF40/60S

REBUILT 1995
                                 
The Schiess #RF40/60S suitable for the cutting of external spur & helical gears, pinions, splines and other workpieces of similar profile up to 236" Pitch Diameter.

SPECIFICATIONS:
MAIN MACHINE - EXTERNAL GEARS:
Gear Diameter To Be Hobbed, Max.: 236" (5995 mm)
Gear Diameter To Be Cut In Accordance w/Grade A of BSA 1498:1954: 169-5/16" (4300 mm)
Gear Diameter To Be Cut, Min.: 55" (1397 mm)
Helix Angle Produced, Max.: 45 Degree
D.P. Produced By Means Of  Hobs, Max.: 1 DP
Face Width Of Gear Produced, (Hob Saddle Travel), Max.: 60" (1524 mm)
Table Load Capacity, Max.: 100 Tons
Center Distance, Hob To Table, Min.: 28" (711 mm)
Outside Table Diameter: 173" (4394 mm)
Table Spindle Bore Diameter: 39-3/8" (1000 mm)
Hob Diameter, Max.: 13-26/64" (343 mm)
Hob Spindle On Spline Shank, OD: 5-1/8" (162 mm)
Hob Spindle In Front Bearing Diameter: 5-23/32" (145 mm)
Hob Spindle Bored To Take Metric Taper: 80
Hob Spindle Speeds: 9 To 100 RPM
Hob Saddle Feed When Hobbing (Per Revolution of Table): 0.0047" - 0.240" (0.1194 - 6.096 mm)
Column Feed, (Per Revolution Of Table): 0.0098"-0.4921" (0.2489 - 12.4993 mm)
Number Of Feeds: 18
Rapid Traverse Of Hob Saddle: 7-3/32 IPM
Rapid Traverse Of Column: 14-11/64 IPM
Tbl Speed For Setting Purposes (Approx): 0.16-0.6 RPM
Main Drive Motor, Horsepower/RPM: 33 HP/2250 RPM
Rapid Traverse Motor, Horsepower: 15 HP
(2) Coolant Pump Motors, Horsepower: 2 HP
Lube Oil Pump Motor, Horsepower: 5.4 HP
Load Relief Table Track Oil Pump Motor: 2 HP
RPM Of These Motors: 1800 RPM

EQUIPPED WITH:
* Massively Proportioned Machine Main Base, Slideways & Hob Column
* Hob Saddle w/Adjustable Bronze Gib Strips w/Precision Feed Screw w/Built-In Backlash Eliminating Feature
* Duplex Worm Drive Swivel Hob Head Providing Higher Transmission Ratio At Output Stage, & Quieter, Smoother Operation w/Axial Adjustment For Reducing Backlash
* Double Worm Drive To Work Table w/SCHIESS Patented Master Worm Wheel Design (Straight Spur Steel Coarse Pitch Indexing Wheel, Bronze Master Worm-Gear For Finishing)
* Duplex Indexing Worms
* Hydraulic, Self-Regulating Table Load Relief
* Infinitely Variable Feeds, Changeable Under Cutting
* Power Forced Lubrication System For All Slideways, Bearings & Gear Meshing Points w/Special Easy Change-Over Filter & Monitored Optical & Acoustic Warning Signals
* Differential Mechanism For Cutting Helical Gears, Including Helical Gears w/Large Prime Numbers Of Teeth
* Variable Speed DC Main Drive Motor w/Reversible Three-Phase Motor For Rapid Traverse Movements
* Full Complement Of Electics (Motor/Controls), Buss-Ducting, Electrical Switch-Gear Cabinet, Operator's Control Station/Desk w/Push Buttons For Machine Inching Motions, Set Up, & Fault Lamp Indication For Lub And/Or Coolant Failure
* Operator's Moveable Hand Held Pendant Control
* Complete Coolant Plant, Pump, Tank & Piping w/Magnetic Chip Conveyor & Discharge Tub
* Large Assortment Of Change Gears For Index, Differential, Including Primes
* Large Assortment Of Hob Arbors
* Miscellaneous Wrenches, Spanners, Operator's Tools
* Operator's Manual, Wiring & Hydraulic Diagrams, Foundation Drawings, Etc.

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