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Gould & Eberhardt 48 HWD, 3021A-5 3020A-1 3020A-2, Gear Hobbing Machine, Instructions Manual
This Manual Covers Models:
48HWD
3021A-5
3020A-1
3020A-2
This Manual Includes:
Machine Size and Type
Index Ratio
Options Supplies
General Instructions
Lifting the Machine
Lubrication
Machine Controls
Precaution Summary
Maximum Safe Hob Speed
Electric Controls
Feed and Traverse Trips
Angular Setting of Swivel Head
How to Install the Hob Arbor
Depth of Cut
Hobbing Upfeed
Setting the Hob
Hob Setting Gage
Hob Speed Change Gears
Index Change Gears (Gear Ratios)
Feed Change Gears
Mounting the Work
Hobbing Helical Gears-Non-Differentially
Angular Feed Chart
Resetting Device
Hobbing Helical Gears Differentially
Ratio Gears
Infeed Mechanism for Hobbing Wormgears
Feed Off-On Selector Switch
Hobbing Prime Spur Gears
Milling Worms
Estimating Production
Extra Travel Spur Gears
Selecting Hob Speeds
Diametrical Pitch Tooth Sizes
Circular Pitch Tooth Sizes
Module Pitch Tooth Sizes
Center Distance Reduction Chart
Comparative Sizes of Gear Teeth
Machine Adjustments
Location of Serial Number
Maintenance – General:
Temperature Rise and Seals
Ordering Repair Parts and Bearings
How to Remove Index Wormgear
How to Remove Hob Swivel Head
Variations in Hobbed Gear Sizes – (Probable Causes)
Work Holiday Fixtures
Set up and Production Record for Gear Hobbing and Cutting Form
This Copy is Intellectually Sound
16 to 48 Size Gear Hobbing Machine, Machine Controls
Beginning with Serial No. 6700A-1:
Electric Control Panel
H03 Slide
Stanchion
Stanchion Clamping Nuts
Nut
Feed Selector Switch
Adjustable Feed Stop
Scale and Vernier
Swivel Head Clamping Nuts
Shaft
hob Spindle clamping Nuts
Hob Positioning Device
Selector Level
Selector Switch
Resetting Device
Lower and Upper Traverse Stop
Hob Slide Lock Screw
Adjustable Micrometer infeed Stop
Shaft
72 H Machine Controls beginning with Serial No. 1990A-5
Machines Built 1960 and later have a serial number with five Digits prefixed by the letters G&E This Manual Has 116 Printed Pages.
This Manual Covers Models:
48HWD
3021A-5
3020A-1
3020A-2
This Manual Includes:
Machine Size and Type
Index Ratio
Options Supplies
General Instructions
Lifting the Machine
Lubrication
Machine Controls
Precaution Summary
Maximum Safe Hob Speed
Electric Controls
Feed and Traverse Trips
Angular Setting of Swivel Head
How to Install the Hob Arbor
Depth of Cut
Hobbing Upfeed
Setting the Hob
Hob Setting Gage
Hob Speed Change Gears
Index Change Gears (Gear Ratios)
Feed Change Gears
Mounting the Work
Hobbing Helical Gears-Non-Differentially
Angular Feed Chart
Resetting Device
Hobbing Helical Gears Differentially
Ratio Gears
Infeed Mechanism for Hobbing Wormgears
Feed Off-On Selector Switch
Hobbing Prime Spur Gears
Milling Worms
Estimating Production
Extra Travel Spur Gears
Selecting Hob Speeds
Diametrical Pitch Tooth Sizes
Circular Pitch Tooth Sizes
Module Pitch Tooth Sizes
Center Distance Reduction Chart
Comparative Sizes of Gear Teeth
Machine Adjustments
Location of Serial Number
Maintenance – General:
Temperature Rise and Seals
Ordering Repair Parts and Bearings
How to Remove Index Wormgear
How to Remove Hob Swivel Head
Variations in Hobbed Gear Sizes – (Probable Causes)
Work Holiday Fixtures
Set up and Production Record for Gear Hobbing and Cutting Form
This Copy is Intellectually Sound
16 to 48 Size Gear Hobbing Machine, Machine Controls
Beginning with Serial No. 6700A-1:
Electric Control Panel
H03 Slide
Stanchion
Stanchion Clamping Nuts
Nut
Feed Selector Switch
Adjustable Feed Stop
Scale and Vernier
Swivel Head Clamping Nuts
Shaft
hob Spindle clamping Nuts
Hob Positioning Device
Selector Level
Selector Switch
Resetting Device
Lower and Upper Traverse Stop
Hob Slide Lock Screw
Adjustable Micrometer infeed Stop
Shaft
72 H Machine Controls beginning with Serial No. 1990A-5
Machines Built 1960 and later have a serial number with five Digits prefixed by the letters G&E This Manual Has 116 Printed Pages.
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