double helical gear boxes
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Double helical gear has both left- right helical teeth, is used to balance the thrust force and provide additional gear shear area. Also known as Herringbone gears, which resemble two helical gears that have been placed in an adjacent manner. Being double helicals, the thrusts are counter-balanced with no thrust loading on the bearings. FEATURES Teeth grinded on hofler gear grinder, mot is checked post operation, surface finish, geometrical accuracy, contact with the mating part are checked, 70%, backlash is checked whether it is within the limits. Apex is checked in case of shrink, distance between two gears is checked, and material is 18crnimo6. Gear quality –Din1 and Din 2 Teeth cutting on hobbling operation maintaining the teeth grounding allowance. Gear machined using tools and inserts from world’s best tool manufacturer like seco and sandvik Sharpening of gear cutters done on German machine klingenberg sharpener Grinding is done on cnc gear grinder using grinding wheels of Winterthur APPLICATION Heavy machinery External gear pumps Required on higher pressures & larger percentage of filled materials TECHNICAL SPECIFICATION: These gears are placed in V shape as two mirrored helical gears joined together. The mirrored arrangement revokes net axial thrust as each half of gear thrusts in opposite direction. To operate in rotational directions, these gears are extended in two possible arrangements for oppositely oriented helical gears/gear faces, one stable and the other unstable.
Planetary Gearbox Mill Duty
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Application – Sugar: Top Roller, GRPF & TRPF Drives, Cane CarrierCement: Roller Press, Apron Feeder, Central Drive Cement Mill Type – High bending (strength) & pitting (wear) safeties for the gears. Available in lnline, Helical+Planetary, Bevel+Helical+Planetary combinations Torque Range – Torque range up to 4500 kNm (foot mounted),Torque range 55 kNm to 900 kNm (shaft mounted) Reduction Ratio Range – 16 : 1 to 1600 : 1 Mounting – Foot & Shaft
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