Sealmaster Mounted Roller Bearings - SealMaster - #39

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132 APPLICATIONS... GOLD LINE SOLUTIONS FOR AIR HANDLING APPLICATIONS. Operating Conditions: Misalignment... The SEALMASTER misalignment capabilities, ±2° on ball and, ±3° roller bearings overcome static alignment problems associated with the installation of mounted bearings on air handling equipment. Housing Fits... SEALMASTER increases useful bearing life by incorporating a special air handling fit between the bearing insert/cartridge and the housing that allows the bearing to properly self-align when mounted on lightweight frame structures, without causing frame deflection. Noise Test... During SEALMASTER's Ball Bearing manufacturing process, an extra noise test check point is added to identify those bearings that meet the exacting noise level needs of the air handling industry. Sealmaster also performs a honing operation after grinding to further polish the surface finish for quiet operation. Vertical Mounting... Sealmaster special "Rainshield" protective cover, available on certain Mounted Ball Bearings, is often specified on vertical shaft applications where condensation and water tends to travel down the shaft and cascade over the bearing. The special flinger design repels moisture build up through rotating motion or centrifugal force. Ask SEALMASTER Application engineers about the S2100 Series "Rainshield" Bearings. Label Identification... Ball - AC/NT bearing units are labeled with a metal nameplate riveted into the housing that indicates that the unit is a SEALMASTER Air Handling Unit. Roller - Sealmaster RPB-AH Air Handling units (see page 125) are identified with a special SEALMASTER metal nameplate indicating that they are equipped with the special housing fit and custom engineered for HVAC Air Handling applications. Key Concerns... are high speed, vibration, noise, frame structures, and energy efficiency. High Speed and Vibration: Locking Mechanism... Often during high speed operation, any eccentricity resonates throughout the air handling system. Inner ring roundness is critical to smooth operation and longer useful bearing life. SEALMASTER's balanced 3-point contact setscrew shaft lock system has been field tested and technically studied to provide longer useful bearing life. Double sided set screw shaft locking is standard on roller bearings and also available on medium duty ball bearings using four set screws to hold the bearing to the shaft and is recommended for high speed air handling applications. (See page 49). Ball - SEALMASTER Gold Line standard wide inner ring combined with our diamond faceted precision ground setscrews and zone hardened ball path all work together to increase shaft stability and improve our shaft lock ability during the most severe vibrating conditions. For our most concentric locking available in a mounted ball bearing, see the SKWEZLOC Section on page 64. Locking Pin... The locking pin design significantly lessens the likelihood of outer ring rotation that could compromise the integrity of the lubrication system and contribute to corrosive fretting between the outer race and housing. Efficiency: Seals... SEALMASTER's field proven felt lined labyrinth seals are ideally suited for air handling energy concerns. The labyrinth construction has an inherent low coefficient of friction between the metal flingers and the filtering material. Standard breakaway and running torques are significantly lower than contact seal designs. Sealmaster labyrinth seals can be modified to provide even lower break away and running torque values. AIR HANDLING... SEALMASTER Gold Line Bearings are used in Air Handling Applications more than any other type of equipment. They are found in a wide variety of industries including Heating, Ventilation, and Cooling (HVAC) equipment and industrial blowers. SEALMASTER bearings have been extremely effective in air handling applications for over 50 years because of the cohesive interplay of Gold Line design features that satisfy many needs of this industry. Air Handling equipment runs at relatively high speeds with high frequency vibration and ordinarily requires quiet bearing operation. Bearings are frequently mounted on light weight frames which can deform during bearing installation. In industrial blower and material handling applications, bearings are often subjected to intermittent shock loads. Energy consumption is also a growing issue in the air handling industry. Contact application engineering with your application parameters for exact bearing selection (630-898-9620).