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Upgrade of mixer gears
Product news WORLD PUMPS
February 2012
Simplified bearing unit for pumps In collaboration with a large pump maker, NKE has developed a new modular system for pump bearings which reportedly simplifies mounting and handling.
the whole pump family consisting of 48 different models, only 21 different types of angular contact ball bearings and deep groove ball bearings were used.
The company began by developing a module of twelve different sizes for fixed and non-locating bearing positions. One requirement was to ensure easy mounting and dismounting of the bearing unit on the shaft and the pump casing without the need of special mounting instruments. The bearing unit should also be protected against splash water and ensure a maintenance-free period of three years without additional lubrication. NKE succeeded in developing a bearing arrangement composed of six components which met all the customer’s requirements. For
The bearing unit was also made suitable for high performance pump models. On the locating bearing position, pairs of angular contact ball bearings were applied in order to resist high loads and to guarantee a long service life. Instead of individual installation, the bearing pairs are mounted into the pumps as entire units. The unit also offers easy mounting and simple handling, due to the deployment of one component instead of several single parts. This also simplifies the spare part service. www.nke.at
A cut-away model of a pump with NKE bearing units.
Upgrade of mixer gears Neptune Mixer Company says that it has improved the sound levels emitted from the gear-train on several of its mixer lines. To do this, Neptune worked with its gear supplier to improve the gear-tooth profile by increasing the American Gear Manufacturers Association (AGMA) Quality Class from a level 6 to a level 9, resulting in tighter manufacturing tolerances on the mesh and backlash, and an improved running-surface finish. This quieter gear operation was incorporated on Neptune mixers that went to market at the beginning of September 2011. “By doing this we have been able to maintain all of the positive attributes of our mixers while, at
the same time, reducing the sound level from the running product,” explained Don Weidemann, quality manager for Neptune Chemical Pump Co. “These changes, although subtle, have resulted in a significantly lower perceived and measured sound level.” Neptune mixers are suitable for a wide variety of blending and mixing operations and can work in waste treatment, water treatment and in batch-chemical operations where paints, varnishes, polymers, textile sizes and dyes, pharmaceuticals, soaps and other materials with viscosities ranging from 1 to more than 25,000 cps need to be mixed or blended. www.neptunemixers.com www.worldpumps.com
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February 2012
Simplified bearing unit for pumps In collaboration with a large pump maker, NKE has developed a new modular system for pump bearings which reportedly simplifies mounting and handling.
the whole pump family consisting of 48 different models, only 21 different types of angular contact ball bearings and deep groove ball bearings were used.
The company began by developing a module of twelve different sizes for fixed and non-locating bearing positions. One requirement was to ensure easy mounting and dismounting of the bearing unit on the shaft and the pump casing without the need of special mounting instruments. The bearing unit should also be protected against splash water and ensure a maintenance-free period of three years without additional lubrication. NKE succeeded in developing a bearing arrangement composed of six components which met all the customer’s requirements. For
The bearing unit was also made suitable for high performance pump models. On the locating bearing position, pairs of angular contact ball bearings were applied in order to resist high loads and to guarantee a long service life. Instead of individual installation, the bearing pairs are mounted into the pumps as entire units. The unit also offers easy mounting and simple handling, due to the deployment of one component instead of several single parts. This also simplifies the spare part service. www.nke.at
A cut-away model of a pump with NKE bearing units.
Upgrade of mixer gears Neptune Mixer Company says that it has improved the sound levels emitted from the gear-train on several of its mixer lines. To do this, Neptune worked with its gear supplier to improve the gear-tooth profile by increasing the American Gear Manufacturers Association (AGMA) Quality Class from a level 6 to a level 9, resulting in tighter manufacturing tolerances on the mesh and backlash, and an improved running-surface finish. This quieter gear operation was incorporated on Neptune mixers that went to market at the beginning of September 2011. “By doing this we have been able to maintain all of the positive attributes of our mixers while, at
the same time, reducing the sound level from the running product,” explained Don Weidemann, quality manager for Neptune Chemical Pump Co. “These changes, although subtle, have resulted in a significantly lower perceived and measured sound level.” Neptune mixers are suitable for a wide variety of blending and mixing operations and can work in waste treatment, water treatment and in batch-chemical operations where paints, varnishes, polymers, textile sizes and dyes, pharmaceuticals, soaps and other materials with viscosities ranging from 1 to more than 25,000 cps need to be mixed or blended. www.neptunemixers.com www.worldpumps.com
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