Though one may not think of gears to be versatile, gear couplings are very much considered to be a versatile coupling. A equipment coupling is usually a mechanical device made to transmit torque between two shafts that are not collinear. The coupling typically contains two flexible joints, one set to each shaft. These joints tend to be connected by a third shaft called the spindle.
Each joint generally contains a 1:1 gear ratio internal/external gear set. The tooth flanks and outer diameter of the external gear are crowned to allow for angular displacement between your two gears. Mechanically, the gears are equal to rotating splines with modified profiles. They are known as gears due to the relatively large size of one’s teeth. Gear couplings are generally limited by angular misalignments of 4 to 5°.
Gear couplings ordinarily come in two variations, flanged sleeve and continuous sleeve. Flanged gear couplings consist of short sleeves surrounded by a perpendicular flange. One sleeve is positioned on each shaft so the two flanges line up face to encounter. A series of screws or bolts in the flanges keep them collectively. Continuous sleeve equipment couplings feature shaft ends coupled jointly and abutted against each other, which are then enveloped by a sleeve. Generally, these sleeves are made from metal, but they may also be made of Nylon.
Single joint equipment couplings are used to connect two nominally coaxial shafts. In this program the device is called a gear-type versatile, or flexible coupling. The solitary joint allows for minimal misalignments such as installation errors and adjustments in shaft alignment due to operating conditions. These types of gear couplings are generally limited to angular misalignments of 1/4 to 1/2°.
Gear couplings are torsionally rigid and are supplied to two designs – completely flexible and flexible/rigid. A completely versatile coupling comprises two hubs with an exterior gear and two external sleeves with an internal gear. It’s a general coupling for a variety of applications and accommodates all feasible misalignments (angular, offset and combined) as well as large axial moments. Machines, bearings, seals, and shafts are therefore not put through the excess forces, sometimes of considerable magnitude, which arise from unavoidable misalignment usually associated with rigid shaft couplings.
A flexible/rigid coupling comprises one flexible geared fifty percent and one rigid half. It does not accommodate parallel displacement of shafts but will accommodate angular misalignment. This type of couplings are primarily utilized for “floating shaft” applications.
Sizes 010 – 070 all have crowned teeth with a 20° pressure contact. This allows to accommodate up to at least one 1,5° static angular misalignment per equipment mesh. However, reducing the operational misalignment will maximize the life of the coupling along with the life of other machinery components such as bearings etc.
SERIES H Features & Benefits
Higher Misalignment Capability
Sizes 1-7 compensate for ±1 1/2° static angular misalignment per gear mesh.
Minimizing operating misalignment will increase the life of the coupling. Refer to the Set up and Alignment Instructions for alignment recommendations.
Larger Bore Capabilities permit the most economical size selection for shafts up to 10 5/8″.
Higher Torque Ratings due to bigger tooth pitch diameters than additional couplings.
Versatility in that Series H’s are interchangeable by half coupling with competitive coupling styles.
1 1/2° Curved-Face Teeth are a prime feature of the Series H coupling, sizes 1-7. The crowned hub teeth are a 20° full-depth involute tooth form with flank, suggestion, and root curvature. When
used in combination with the straight confronted sleeve teeth, these 1 1/2° curved encounter hubs offer increased shaft misalignment capability
CENTER FLANGE BOLTING
All couplings feature precision-drilled flange bolt holes, and tight tolerance Grade 5 flange bolts to make sure a long-long lasting flange to flange and fastener fit. Exposed bolt flanges are
standard. Shrouded bolt flanges could be provided through size 5. Size #5 1/2 and bigger couplings are only obtainable with uncovered bolt flanges.
Each sleeve flange comes with two pipe plugs 180° apart. This permits assembly of a complete flex coupling with four lube plugs positioned every 90°, facilitating lubrication. The lube seal is definitely a Buna-N O-ring to help retain grease and exclude contaminants. KHP or KSG coupling greases are suggested to be able to obtain maximum operating life.
Ever-power COUPLING Features & Benefits
The Ever-power equipment coupling comes in two basic product lines:
Ever-powercoupling for medium to heavy-duty applications
Sizes 1 1/2 through 7 with essential end ring.
Sizes 8 through 30 with bolt-on end ring.