Barber-Colman No. 3 & No. 12 Hobbing Operator's Manual
Third Edition operator's manual for the Barber-Colman No. 3 and No. 12 gear hobbing machines. This workshop manual provides comprehensive guidance on proper operation, maintenance, and adjustment of these heavy-duty hobbers. Coverage includes general specifications, care and adjustment procedures, and detailed operating instructions: gear changing, hob and hob swivel positioning, work and work arbor setup, and inspection protocols. Dedicated sections address hobbing helical and spur gears, roughing and finishing techniques, hob sharpening, cutting oil and compound selection, and hobbing procedures. The manual includes practical reference data—feed and speed tables, gear tooth specifications for diametral pitch gears, change gear tables for spur gear hobbing, and feed constant data—plus complete repair parts lists and foundation plans for both models. Machine footprint: 43" × 76"; net weight approximately 4,600 lbs. An essential troubleshooting and maintenance resource for operators and shops.
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Document Details
- Format
- Pages
- 124
- Size
- 11.0 MB
- Category
- Machine Tools