Rexrnord® Planetgear? Gear Drives
134Pages

Gear Drives Planetgear™ Planetary Gear Drives (English-Inch)

Selection Procedures Quick Selection Tables Dimensional Information Technical Information Installation / Maintenance Specialty Engineered Products General Engineering / Information Other Drive Products Quick Reference Note: In accordance with our policy to constantly improve products, the specifications in this catalog are subject to change without notice.

Accessories Rigid scoop facilitates mounting and alignment of most motor frame sizes and eases final installation of the drive package. Fans and shrouds furnished to maximize lubricant life and reducer performance. Planetgear motor mount saves space and allows precise speed adjustment. Slidebases available for all reducers to facilitate chain tensioning. Reducers are easily modified for vertical service with either low speed or high speed shaft down. Flanged motor mounts are available in Mercury through Polaris sizes, for NEMA frame sizes 56C to 286TC. Internally mounted, oil lubricated...

Proven, Reliable Gear Performance With Planetgear reducers, self-aligning planet carriers float radially and axially to provide perfect alignment of the gear train. Unlike "traditional gears" which have only one point of contact per reduction, Planetgear transmits the torque through three points of contact between sun gears and planet gears. The floating gear train ensures equal loading among the three points. State of the art heat-treating techniques provide hardened, wear-resistant gearing. Three points of contact Traditional Gears — only one point of contact Superior Seal Protection How...

SELECTION PROCEDURES General Selection Information INTRODUCTION Before a reducer can be selected for any application, the equivalent output torque or horsepower must be computed by multiplying the actual or specified torque or horsepower by the service factor (S.F.) for the particular load classification for which the unit is to be used. It is necessary that the unit selected have a capacity equal to or in excess of the equivalent output torque (lb-in) or horsepower. Reducers can be selected by Service Factor or Load Classification. Both Service Factors and Load Classifications are a means...

SELECTION PROCEDURES Motorized Selection (Scoop Mount and C-face) Three classes designated by Roman Numerals I, II and III were established by NEMA to relate the package or "Drive" to a large variety of applications. These applications were classified by load factors and hours per day of use. A service classification table using this nomenclature for typical applications is located on pages 3 & 4. Reducer selections can be made based on applying these service classifications to specific motor ratings and speeds. Planetgear scoop mounted motor reducers are available for all reducer series...

SELECTION PROCEDURES Service Class Selections TABLE 1 - SERVICE CLASSES SERVICE 10 24 HRS/ HRS/ DAY DAY SERVICE 10 24 HRS/ HRS/ DAY DAY II II II II I II APPLICAT ION APPLICAT ION APPLICAT ION AGITATORS Clay Working Machinery FANS Pure Liquids I II Pug Mills Centrifugal Liquids & Solids II II COLLECTORS (Sewage) Cooling Towers Liquids - Variable Density II II Forced Draft APRON CONVEY ORS COMPRESSORS Induced Draft Uniformly Loaded or Fed I II Centrifugal I II Large (Mine, etc.) Heavy Duty II II Lobe II II Large (Industrial) APRON FEEDERS II II Reciprocating Light (Small Diameter) ASSEMBLY...

SELECTION PROCEDURES Service Class Selections TABLE 1 - SERVICE CLASSES (cont.) SERVICE 10 24 HRS/ HRS/ DAY DAY II III * * SERVICE 10 24 HRS/ HRS/ DAY DAY II III II APPLICAT ION APPLICAT ION APPLICAT ION Tray Devices Couch Rolls Mills (3 on line) Veneer Lathe Drives Cutter Mixing Mills MACHINE TOOLS Cylinder Molds Refiners & Sheeters Auxiliary Drives I II Dryers – SAND MULLERS Bending Rolls II II Paper Machine & Conveyor Type II SCREENS Main Drives II II Embosser II Air Washing Notching Press (Belted) * * Extruder III Rotary – Stone or Gravel Plate Planers III III Foundrinier Rolls–...

SELECTION PROCEDURES Non-Motorized Selection (For motorized reducer selections, see page 2) Introduction Selection and pricing of Planetgear is based solely on the required output torque capacity of the application. The service factor method is used to apply specific industry application standards based on the hours per day of operation. These application standards are cataloged and have been developed based on practical application experience. The following information demonstrates how this procedure allows the selection of the most economical Planetgear reducer. Information Required To...

SELECTION PROCEDURES Selection Examples — Reducer Only (Non-motorized) When motor horsepower is known: A 100 hp 1,750 rpm motor is used to drive a heavy duty horizontal apron conveyor 24 hrs/day. The conveyor requires a reducer output speed of 50 rpm. A roller chain drive having a 240B25 tooth roller chain sprocket (23.936" Pitch Diameter) is mounted with the center of the chain pull 4.5 inches from the seal cage. Ambient temperature is 80 oF. Step 1 — Select service factor From Table 2 on pages 7 & 8, the service factor for an apron conveyor 24 hrs/day operation is 1.5. Step 9 — Order...

SELECTION PROCEDURES Service Factor Selections TABLE 2 - SERVICE FACTORS SERVICE 10 24 HRS/ HRS/ DAY DAY SERVICE 10 24 HRS/ HRS/ DAY DAY 1.25 1.50 1.25 1.50 1.00 1.25 APPLICAT ION APPLICAT ION APPLICAT ION AGITATORS Clay Working Machinery FANS Pure Liquids 1.00 1.25 Pug Mills Centrifugal Liquids & Solids 1.25 1.50 COLLECTORS (Sewage) Cooling Towers Liquids - Variable Density 1.25 1.50 Forced Draft APRON CONVEY ORS COMPRESSORS Induced Draft Uniformly Loaded or Fed 1.00 1.25 Centrifugal 1.00 1.25 Large (Mine, etc.) Heavy Duty 1.25 1.50 Lobe 1.25 1.50 Large (Industrial) APRON FEEDERS 1.25 1.50...

SELECTION PROCEDURES Service Factor Selections TABLE 2 - SERVICE FACTORS (cont.) SERVICE 10 24 HRS/ HRS/ DAY DAY 1.25 1.50 * * SERVICE 10 24 HRS/ HRS/ DAY DAY – 1.25 – 2.00 – 1.25 APPLICAT ION APPLICAT ION APPLICAT ION Tray Devices Couch Rolls Mills (3 on line) Veneer Lathe Drives Cutter Mixing Mills MACHINE TOOLS Cylinder Molds Refiners & Sheeters Auxiliary Drives 1.00 1.25 Dryers – SAND MULLERS Bending Rolls 1.25 1.50 Paper Machine & Conveyor Type – 1.25 SCREENS Main Drives 1.25 1.50 Embosser – 1.25 Air Washing Notching Press (Belted) * * Extruder – 1.50 Rotary – Stone or Gravel Plate...