Rexnord Planetgear 7000 Owner's Manual
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Rexnord Planetgear 7000 Owner's Manual

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Owners Manual • Rexnord
(Page 1 of 33) Size Mercury/Mars

TABLE OF CONTENTS

SECTION I - INTRODUCTION
Introduction .........................................................................2
Basic Operation and Design ...............................................2
Nameplate Information ........................................................2
Handling of Reducer ...........................................................3
Reducer Mounting ...............................................................3
Mounting of Transmission Accessories ...............................4
Motors (Standard Units) ......................................................4
Motors C-Face & IEC Motor Flange Units ...........................5
Couplings ............................................................................5
Sprockets or Sheaves ..........................................................5
Lubricant Selection Process ................................................6
Lubricant Changes & Analysis ............................................7
Stored & Inactive Gear Drives .............................................7
Food Grade Lubricants .....................................................10
Stored and Inactive Gear Drives .......................................12
Pre Start-Up Checklist .......................................................13
Initial Start-Up....................................................................13
Prime Mover .......................................................................13
Reducer Rotation ...............................................................13
Start-Up .............................................................................13
Post Start-Up Checklist .....................................................13
Filling Oil ............................................................................14
Draining Oil ........................................................................14
Adding Grease to Reducer Seals .....................................14
Replacing Seals in Service ...............................................14
Required Equipment .........................................................15
Taking Reducer of of Service ...........................................15
Replacing Seals ................................................................15
Removing Seals .................................................................15
Installing New Seals (Output Assembly) ..................... 16-17
Installing New Seals (Input Assembly) ........................ 17-18
Replace Bearings ....................................18
Replace Bearings .............................. 18-19
Replace Bearings ....................................19
Output Housings ............................... 19-20
Assembling Input Shaft Assemblies ............................ 20-21
Assembling Output Shaft Assembly ............................ 21-22
input Shaft Assemblies ............................22
Gear Train Disassembly .............................................. 23-24
Gear Train Assembly .........................................................24
Fan and Shroud Installation ...............................................24
158-110
10/21 (Supersedes 01/15)
© Rexnord Corporation. All Rights Reserved.
Planetgear
7000 Speed Reducers
™
®
Shroud Clip Installation .....................................................24
Fan Installation ..................................................................24
Fan Shroud Installation ......................................................24
Filling Oil ............................................................................25
Draining Oil ........................................................................26
Spare Parts Storage ..........................................................27
Stored and Inactive Reducers ...........................................27
Long Term Storage ............................................................27
SECTION IX - TROUBLESHOOTING
Troubleshooting .................................................................28
Average Weights ...............................................................29
Torque Requirements ........................................................29
Bearings for Standard Speed Reducers ...........................30
Seals for Standard Speed Reducers .................................30
SECTION XII - MAINTENANCE LOG
Maintenance Log ...............................................................31
Notes .................................................................................32
SECTION XIII - ACCESSORIES
Accessories .......................................................................33
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Summary of Contents for Rexnord Planetgear 7000

  • Page 1: Table Of Contents

    Adjusting for too Much Axial Bearing Clearance ....23 Adjusting for too Little Axial Bearing Clearance ....23 Gear Train Disassembly ..........23-24 Gear Train Assembly ............24 Fan and Shroud Installation ..........24 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 2: Introduction

    1.1 BASIC OPERATION AND DESIGN extreme conditions. The input shaft assembly also has The Planetgear 7000 unit is a concentric shaft speed the ability to add a backstop option to eliminate reducer reducer that uses a simple planetary design, which utilizes counter rotation when the input driver is shut off.

  • Page 3: Section Ii - Installation

    Check final alignment of motor shaft, coupling, and reducer shaft after reducer is in final working position. Figure 2.1 Reducer Handling 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 4: Mounting Of Transmission Accessories

    2.3 MOUNTING OF TRANSMISSION 2.3.1a MOTORS (STANDARD UNITS) ACCESSORIES When direct coupling motors to the Planetgear 7000 reducer, follow the four step process shown below to WARNING: When the Planetgear 7000 speed reducer achieve proper motor to reducer alignment. Refer to...

  • Page 5: Motors C-Face & Iec Motor Flange Units

    This will minimize the overhung load and prolong bearing life. REDUCER When using a Planetgear 7000 top motor mount accessory, INPUT GEAR the belt tension can be changed by varying the height of the motor mount plate.

  • Page 6: Section Iii - Lubrication

    Lubricant selections must have a pour point at least 10°F (5.5°C) below the expected minimum ambient starting temperature. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 7: Lubricant Changes & Analysis

    20°F . If grease must be applied below 20° F consult factory or lubricant where temperatures vary with the seasons, change the oil supplier for recommendations. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...
  • Page 8 Kluberoil GEM 1 N 320 Kluber Lubrication  Minimum viscosity index of 90.  Kinematic viscosity in units of mm /s is equivalent to cSt (centistokes). 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...
  • Page 9  Minimum viscosity index of 130. Consult lubricant supplier/manufacturer for maximum operating temperature.  Kinematic viscosity in units of mm /s is equivalent to cSt (centistokes). 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 10: Food Grade Lubricants

    Change lube with change in ambient temperature, if required. Refer to Table 11. Tables 12A, 12B, 13A 13B & 14 list food grade lubricants that have performance properties meeting Rexnord TABLE 10 — Viscosity Grade specifications. They are not exclusive recommendations but Recommendation for Food serve as a guide for making proper lubricant selections.
  • Page 11 - - - Purity FG Synthetic EP 220 - - - c Kinematic viscosity in units of mm /S is equivalent to cSt (centistokes) 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 12: Stored And Inactive Gear Drives

    STORED AND INACTIVE GEAR DRIVES See Storage Procedures (Section VIII). Prior to shipment from the factory, all Rexnord enclosed drives are protected internally against corrosion with rust preventative oil. When ordered for Long Term Storage, a vapor phase rust inhibitor may also be added.

  • Page 13: Section Iv - Start-Up

    WARNING: Never operate the speed reducer at speeds and/or loads that exceed the limits specified on the It is recommended that all Planetgear 7000 speed nameplate. Exceeding these limits may result in personal reducers be run-in for a period of time before introduction injury or machinery damage.

  • Page 14: Section V - Maintenance

    6. Replace oil level plug, sealing it in the process using thread sealant. 7. Replace oil fill plug, sealing it in the process using thread sealant. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 15: Section Vi -Disassembly And Assembly Instructions

    HP , motor RPM, and the build date from the reducer nameplate. No ratio change should be made without first consulting a Rexnord representative. All bearings and seals used on standard Planetgear 7000 speed reducers are listed in Table 20 and Table 21 Figure 6.2.1.1 Piercing of Outboard Seal with Punch...

  • Page 16: Installing New Seals (Output Assembly)

    INBOARD SEAL TUBE (INSTALLED) RING Figure 6.2.2.5 Orientation of Outboard Seal for INBOARD SEAL Installation Figure 6.2.2.2 Placement of Tooling for Installation of Inboard Seal 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 17: Installing New Seals (Input Assembly)

    3. Place the ring on the seal. Reference Figure 6.2.3.2. 4. Place the tube on the ring. Reference Figure 6.2.3.2. 5. Place the plate on the tube. Reference Figure 6.2.3.2. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 18: Replacing Bearings - Input/Output Shaft Assemblies

    (reference Figure 6.3.2.3, next page). NOTE: Take care not to damage the shaft bearing surface or seal surface. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 19: Disassembling Output Shaft Assembly To

    Bearing cup has 4. Remove bearing spacer. Store in a clean spot. to be seated perfectly to insure proper bearing alignment. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 20: Assembling Input Shaft Assemblies

    2. Make sure bearing cups are clean and installed properly in housing. Reference Section 6.3.4. 3. Set shaft on end with the spline end of the shaft facing 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 21: Assembling Output Shaft Assembly

    Reference Figure 6.3.6.3 next page. Figure 6.3.5.5 Final Assembly of Input Shaft Housing 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 22: Setting Proper Axial Bearing Clearances On

    14. Hold housing on its side and with a blunt instrument, rap on the inboard side of shaft. Reference Figure 6.3.6.5 (next column). 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 23: Adjusting For Too Much Axial Bearing Clearance

    TRIPLE REDUCTION 5. Hold housing on its side and with a blunt instrument, rap on inboard side of shaft. Reference Figure 6.3.5.5, Page 21. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 24: Gear Train Assembly

    Figure 6.7.1 b) and tighten bolts to torque requirements of Table 18, Page 29. CENTER OR REDUCER BOLT CLIP Figure 6.7.1B Location of Shroud Clips 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 25: Section Vii - Vertical Service

    Table 15, and Figure 7.2a & Table 16. It is difficult to convert a standard reducer for vertical service. determine all potential field installation interference points. Planetgear 7000 speed reducers used in a vertical If necessary please substitute different pipe fittings as orientation or most inclined orientations require an oil required.

  • Page 26: Draining Oil

    3/8” NPT x 4’ LG. PIPE NIPPLE (100 mm) 3/8” NPT x 4’ LG. PIPE NIPPLE (100 mm) OIL LEVEL DECALS RESERVOIR 1 PINT (.47 L) 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 27: Section Viii - Storage Procedures

    Noncompliance with this procedure may cause bearing damage during start-up. 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 28: Troubleshooting

    • Compare actual reducer load with rated load on the nameplate. If the HP or torque is greater, or the speed is slower than stated on the nameplate, the reducer is probably overloaded. Contact a Rexnord Planetgear Representative; may require a speed change or a OVERLOAD larger unit.

  • Page 29: Section X - Tables

     The torques shown produce a clamp load of 80% of proof load. They assume clean, dry threads with a torque coefficient of 1.2, and a coefficient of friction of 0.14. Plated threads need only ¾ torque shown. Well lubricated threads need only ½ torque shown. Source: Rexnord Engineering Specification: GES8-19, 04/10/79. TABLE 19 — Maximum Allowable Tilts for Standard Reducers INPUT SHAFT UP OUTPUT SHAFT UP...

  • Page 30: Section Xi - Tables: Replacement Seals And Bearings

    Inboard Outboard Inboard Outboard Inboard Outboard Mecury CR19993 CR20004 CR19995 CR20002 CR26220 CR26209 CR26204 CR26208 Mars CR19993 CR20004 CR19995 CR20002 CR26220 CR26209 CR26204 CR26208 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 31: Maintenance Log

    7000 Speed Reducers ™ ® (Page 31 of 33) Size Mercury/Mars Section XII — Maintenance Log REDUCER SERIAL NUMBER DATE INSTALLED DATE MAINTENANCE PERFORMED 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 32: Notes

    Owners Manual • Rexnord Planetgear 7000 Speed Reducers ™ ® (Page 32 of 33) Size Mercury/Mars NOTES 158-110 rexnord.com 10/21 (Supersedes 01/15) © Rexnord Corporation. All Rights Reserved. Contact us — visit rexnord.com/contact...

  • Page 33: Accessories

    Planetgear 7000 Speed Reducers ™ ® (Page 33 of 33) Size Mercury/Mars NOTES Section XIII — Accessories Contact a Rexnord Account Executive or refer to Planetgear Reducer with Reducer with Top Motor Mount Scoop Motor Mount Reducer with Reducer with...

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