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Oversize Revolving Head Assembly Gravity Lube Channel

NP-8-SA-OS-GL

The gravity lube channel will be machined into the O.D. of the Revolving Head on the centerline of the five bearing lubrication holes. Lubrication will still occur in the fourth position with the same Bijur metering unit. The size of the five bearing lubrication holes in the head will be slightly reduced in size. The reduction of the lube hole size will assist in redirecting the lube oil onto the O.D. of the Revolving Head and into the gravity lube channel. Gravity will force the excess lube into the channel, which will the consistently provide lubrication and extend the life of all five spindle bearings. The most significant benefit of the gravity lube channel will be that the lube oil will be forced by gravity into the first & second positions that experience the heaviest work loads form the front and rear cross slides. The gravity lube channel will not increase the amount of lube oil required to operate the machine. DESIGN CONCEPTS ALL SPINDLES CONTINOUSLY LUBRICATED. LUBRICATION NOW PRESENT AT INCOMPLETE INDEX STATION; SPINDLE SEIZURE IS VIRTUALLY ELIMINATED. THIS CAN OCCUR AT ANYTIME DURING RUNNING. RESERVE OF OIL IN SYSTEM GROOVE SMOOTHES / STABILIZES OIL FLOW , CREATES BATH OF OIL FOR 1ST & 2ND POSITION BEACUSE OF GRAVITY. 360 DEGREE LUBRICATION OF HEAD BOSS/JOURNALS. UNIFORM LUBRICATION OF ALL SPINDLES ALL THE TIME. 2 TO 30 SECONDS: MACHINE TYPICAL CUTTING (HIGH PRESSURE) TIME THE OLD SYSTEM CAN ALLOW METAL TO METAL CONTACT DUE TO NO LUBRICATION EXCEPT IN ONE POSITION. PREVIOUS SYSTEM : SERIAL LUBRICATION OR SPINDLE LUBRICATED ONE AT A TIME. LUBRICATION WHERE HIGH CUTTINGS FORCE ON LOWER SPINDLES HAVE HIGHEST AMOUNT OF LUBRICATION. FOUR OF FIVE SPINDLES WILL NOT RECEIVE LUBE FOR UP TO 5 INDEXES TO BE LUBRICATED, OR APPROXIMATELY A MAXIMUM OF 3 MINUTES. NOWAK SYSTEM: PARALLEL LUBRICATION OR SPINDLES LUBRICATED ALL TOGETHER. MACHINE INDEX BY NATURE (IN DIRECTION OF ROTATION) WILL DELIVER OIL TO THE LOWER, HIGHER PRESSURE, CUTTING SPINDLES. THESE LOWER POSITION SPINDLES WORK THE HARDEST OF ALL FIVE. THIS DUTY CYCLE DICTATES THAT A LARGE PERCENTAGE OF LUBE IS IS CONSUMED. THE NOWAK SYSTEM PROVIDES OPPORTUNITY FOR DELIVERY AND RESERVE THROUGH OUT THE HIGH PRESSURE, FORMING OPERATION POSITIONS. SPINDLES A & B ARE THE "LOWER"HIGH SIDE RADIAL CUTTING PRESSURE SPINDLE. REDUCED BEARING FRICTION MINIMIZED HEAT AND ATTENDANT WEAR. PROMOTING LONGER COMPONENT LIFE.

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