GE GEH-5304A manual Special Load Considerations, Pinion Drives, Thrust Loads, Vertical Mounting

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GEH-5304A

Mounting may be either horizontal or vertical for these bearing life determinations, as long as no axial load (i.e., suspended load) other than the weight of the armature is present if vertical.

5.Special Load Considerations

Where the load is overhung beyond the motor shaft extension or greater bearing life is desired, the application should be referred to GE Industrial Systems.

6.Pinion Drives

While Kinamatic® motors are not designed for overhung pinion drives, they may be successfully ap- plied under suitable conditions. In addition to a radial load, some gears produce thrust load on the bearing. Complete details of the proposed gearing should be referred to GE Industrial Systems in all cases.

7.Thrust Loads

Due to the mounting position or type of drive arrangement, a thrust load may be applied to the motor shaft. The Kinamatic® motor is designed to permit a limited amount of thrust load. This permissible load will vary by mounting position and direction of the load due to the weight of the armature. The permissible load in Table 2 is tabulated by frame diameter and mounting position. These apply to ball bearings only.

For applications combining thrust and radial loads or where thrust loads exceed the values shown in Table 2, refer all details to GE Industrial Systems.

Table 2

Maximum Continuous Thrust Capacity, Lbs.*

 

 

 

Vertical Mounting

 

Bearing

Horizontal

Thrust Load

Thrust Load

Frame

Size

Mounting

Up

Down

2512

Std-309

350

465

235

2512

O/S-310

400

515

285

2513

Std-309

350

485

215

2513

O/S-310

400

585

265

2812

Std-310

400

550

250

2812

O/S-311

500

650

350

2813

Std-310

400

585

215

2813

O/S-311

500

685

315

*Based on L10 life of 20,000 hours and an average speed not exceeding 2500 RPM.

IV. OPERATION

Disconnect power before touching any internal part. High voltage may be pres- ent even when the machine is not rotating. If used with a rectified power sup- ply, disconnect all AC line connections to power supply. With other power supplies, disconnect all DC line and field connections. Also disconnect power from auxiliary devices.

Ground the machine properly to avoid serious injury to personnel. Grounding must be in accordance with the National Electrical Code and consistent with sound local practices. One of the bolts holding the conduit box to the unit, ac- cessible from inside the conduit box, is identified and may be used for attach- ing a grounding cable.

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Contents Instructions Copyright 1985, 1992, 1999 General Electric Company Table of Contents Storage of Renewal Parts Storage II. ReceivingHandling Location Typical WeightsCoupled Drive MountingAlignment Bearing Life GroutingBelt Drives Belt Tension Factor, Kb Maximum Continuous Thrust Capacity, Lbs Special Load ConsiderationsPinion Drives Thrust LoadsCommutator and Brushes Rectified Power SuppliesInspection Before Starting Bearings and CouplingsFrame Sizes CD2812AT and CD2813AT Speed Life Factor Less Than 500Bearing Life at 1750 RPM Average Speed Vs. Load, W Power Supply Available Thermostats ConnectionsProtective Devices Motor Field HeatingA1, A2 F1, F2, F3, F4, etc. T1, T2, T3, T4, etc Accessories & Special Device MarkingsLead Markers Function WindingGeneral Mechanical Inspection Ventilation SystemInspection After Starting Accessory MountingBolt Tightening Torque Values BrakesNoise and Vibration Inspection After Short Time in ServiceReassembly DisassemblyStandard Bearings for CD2512AT-CD2813AT Motors Replacement of BearingsRecommended Regreasing Periods Frame Size CD2512AT- CD2813AT AverageSources of Supply for Bearing Greases Standard Temperature 15F to 212F -10C to 100CLow Temperature High Temperature-20F to 350F -28C to 176CBrush Installation Commutator Diameters In Inches Brush AssemblyCommutator Lubrication of Flexible Couplings MechanicalShaft End Play Waterproof MachinesGEH-5304A Ues Insulation Resistance Measurement Testing Methods Visual InspectionCleaning of Windings Effect of Temperature on Insulation ResistanceOily Dirt Repair Service Shop CleaningDrying of Windings Storage of Renewal Parts VI. Renewal PartsWith Electrical Shop Facilities Number of Duplicate Motors in Service DescriptionRecommended Spare Parts With or Without Electrical Shop FacilitiesCommutator Check Chart Application Information for CD2512AT CD2813AT Frames GEH-5304A Dimensions, Air Openings for CD2512AT CD2813AT Frames Renewal Parts For CD2512AT CD2813AT Frames Air Flow Requirements For Separately Ventilated MotorsFrame 2512AT, 2513AT 2812AT, 2813AT Base Speed AllAccessory Mounting CD2512AT CD2813AT Accessory Mounting CD2512AT CD2813AT GEH-5304A Type CD Frames 2512AT 2813AT 5HDGHU&RPPHQWV Detach and fax or mail to the address noted above Fort Wayne in 46801-2205 USA Isaac #

GEH-5304A specifications

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