Model Number System Double Reduction Helical-Worm

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1 Worm - Helical - Model Number System Helical-Worm 800 Series Gear Reducer Model Number Nomenclature All new stock and custom 800 Series Grove Gear and Electra-Gear worm reducers are identified by a model number. The model number appears on the nameplate and describes pertinent features of the reducer. An example follows, along with a listing of the various letters and positions used. NOTE: All reducers also have a catalog number for example EL and GR Reducers and renewal parts should be ordered by catalog number. If a stock reducer has been Factory modified by the addition of an optional base for example, the modification number T818, for example, is stamped in the blank column of the nameplate. Accessories that are field installed will not be noted on the nameplate. Catalog numbers 3000 and higher (for example, GR and NH ) are WASHGUARD reducers for washdown service. Catalog numbers 5000 (for example, GR and EL ) and higher are custom reducers manufactured for a specific application. The machinery or equipment manufacturer should be contacted for replacement reducers. Renewal parts can be ordered by catalog number. Output Shaft Mounting Output Series Code Style Size Ratio Orientation Assembly Motor Flange Bore Code SOLID OUTPUT SHAFT DXMQ Motorized, Quill Input DXM Motorized, Flexible Coupling Input DX Non-Flanged HOLLOW OUTPUT SHAFT DXHMQ Motorized, Quill Input DXHM Motorized, Flexible Coupling Input DXH Non-Flanged WASHGUARD STYLES W prefix; i.e. WDXMQ denotes WASHDOWN Reducer S prefix; i.e. SDXMQ denotes All-Stainless Steel Reducer GR - Grove Gear IRONMAN Cast Iron Reducers NH - Grove Gear IRONMAN Narrow Housing Cast Iron Reducers EL - Electra-Gear Aluminum Reducers GRG - Grove Gear Flexaline Interchange (Sizes 821, 826, 832) GRL - Leeson IRONMAN Interchange (Sizes 821, 826, 832) See Selection Tables on pages , for all available ratios. 800 SERIES CENTER DISTANCES Center Distance Size (Inches) * * * * GR series only DATE CODE MODEL NO. CATALOG NO. Assembly numbers 1-6 are available. Refer to dimension layouts. L Left-hand Output Shaft* R Right-hand Output Shaft* D Double Output Shaft H Hollow Output Shaft * Viewed from drive end of reducer. TYPICAL NAMEPLATE (Grove Gear shown) F09 GR-DXMQ L1-56 GR HP OUT TORQ IN-LBS RATIO :1 GROVE GEAR UNION GROVE, WI MADE IN U.S.A 1750 RPM AGMA CLASS 1 SERVICE Input For Code Input Type Single Input Dual Input blank A non-motorized 48 48A 48CZ 56 56A 56C A 143-5TC A 182-4TC A 213-5TC A 254-6TC 63 D63D B5 71 D71D B5 80 Contact D80D B5 90 Grove Gear D90D B5 110 D100LD/D112MD B5 132 D132D LUBED WITH GLY460 Hollow Shaft Only See page 140. NEMA Input IEC Input Sample Model Numbers Solid Output Shaft - GR Series Cast iron, double reduction, 2.38 reducer with 56C motorized quill input, left-hand output shaft, 300:1 ratio. GR - DXMQ L1-56 Series Style Size Ratio Shaft Input Orientation Type Hollow Output Shaft - EL Series Aluminum, double reduction, 1.75 reducer with 56C motorized quill input, 1.00 hollow output bore, 100:1 ratio. EL - DXHMQ H Series Style Size Ratio Shaft Input Output Bore Orientation Type Code 194

Stock Styles Cast Iron Solid Shaft Output Styles

accessories, stock styles DXMQ, DXM and DX can be

* Single Reduction Style DXMQ Horizontal Base Worm

Worm - GR Series 212-213 NH Series 230-231 Style DXM

Series 218-219 Style DXJM Helical - GR Series 212-213

Series 232-233 Style DXT GR Series 218-219 Style DXJ

accessories, options and assembly services are

2 Stock Styles Cast Iron Solid Shaft Output Styles Modified Stock Styles Using off-the-shelf accessories, stock styles DXMQ, DXM and DX can be field or Factory modified into a wide range of styles.* Single Reduction Style DXMQ Horizontal Base Worm Over Style DXTMQ Vertical Input Shaft Style DXJMQ Worm - GR Series NH Series Style DXM GR Series NH Series Style DXTM GR Series Style DXJM Helical - GR Series NH Series Style DX GR Series NH Series Style DXT GR Series Style DXJ GR Series NH Series * Additional accessories, options and assembly services are available, Contact Factory for details. GR Series NH Series GR Series

Cast Iron Solid Shaft Output Styles Modified Stock Styles Worm -

Output Shaft Style DXFMQ Flange Mounted Output Shaft Style DXFEMQ

DXFM GR Series 228-229 NH Series 238-239 Style DXFEM GR Series

DXV_ ** Style DXF Style DXFE GR Series 220-221 GR Series 222-223 GR

3 Cast Iron Solid Shaft Output Styles Modified Stock Styles Worm - Vertical Output Shaft High / Low Base Style DXV_MQ** Flange Mounted Output Shaft Style DXFMQ Flange Mounted Output Shaft Style DXFEMQ Helical - GR Series GR Series Style DXV_M** Style DXFM GR Series NH Series Style DXFEM GR Series GR Series GR Series NH Series Style DXV_ ** Style DXF Style DXFE GR Series GR Series GR Series NH Series SPECIFY SHAFT UP OR DOWN FOR THESE STYLES. **

Cast Iron Hollow Shaft Output Styles Stock

Output Shaft Style DXFHMQ Worm - GR Series

Series 224-225 NH Series 234-235 Style DXH GR

226-227 NH Series 236-237 Style DXFHM GR

4 Cast Iron Hollow Shaft Output Styles Stock Styles Modified Stock Styles Using off-the-shelf accessories, stock styles DXHMQ, DXHM and DXH can be field or Factory modified into a wide range of styles. Single Reduction Style DXHMQ Flange Mounted Output Shaft Style DXFHMQ Worm - GR Series NH Series Style DXHM GR Series NH Series Style DXH GR Series NH Series GR Series NH Series Style DXFHM GR Series NH Series Style DXFH GR Series NH Series Helical - 197

5 ELECTRA-GEAR Aluminum Hollow Shaft Output Styles Stock Styles Modified Stock Styles Using off-the-shelf accessories, stock styles DXHMQ, DXHM and DXH can be field or Factory modified into a wide range of styles. Worm - Style DXHMQ Style DXFHMQ Helical - EL Series Style DXHM EL Series Style DXFHM EL Series EL Series Style DXH Style DXFH EL Series EL Series

6 Stock Styles Modified Stock Styles ELECTRA-GEAR Aluminum Solid Shaft Output Styles Using off-the-shelf accessories, stock styles DXMQ, DXM and DX can be field or Factory modified into a wide range of styles. Single Reduction Style DXMQ Horizontal Base Worm Over Style DXTMQ Horizontal Base Worm Under Style DXUMQ* Worm - EL Series Style DXM EL Series Style DXTM EL Series Style DXUM* Helical - EL Series Style DX EL Series Additional accessories, options and assembly services are available, Contact Factory for details. EL Series Style DXT EL Series EL Series Style DXU* EL Series Not a recommended mounting style. Consult Factory * for selection assistance. 199

7 Worm - ELECTRA-GEAR Aluminum Solid Shaft Output Styles Vertical Input Shaft Modified Stock Styles Vertical Output Shaft Low Base Flange Mounted Output Shaft Style DXJMQ Style DXVLMQ ** Style DXFRMQ Helical - EL Series Style DXJM EL Series Style DXVLM ** EL Series Style DXFRM EL Series EL Series EL Series Style DXJ Style DXVL ** Style DXFR EL Series EL Series EL Series SPECIFY SHAFT UP OR DOWN FOR THESE STYLES. **

8 How to Use Based on required output RPM and input motor horsepower, read across chart for the appropriate reducer size. As a rule of thumb, use 1.00 service factor chart for applications having uniform loads with up to 10 hours service duration per day. Use 1.25 service factor chart for longer service or shock loading. These charts are to be considered as guides only. Typically double reduction reducers are selected based on application torque, not necessarily HP. Refer to page 644 or contact Factory with specific application information. Series numbers correspond to center distances of secondary stage reducer, as shown in the chart below Service Factor Quick Selections GR NH EL Series Ratio RPM 1/8 1/6 1/4 1/3 1/2 3/ / / N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A * * N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A * N/A N/A N/A ** N/A N/A N/A ** * * 832** * ** Service Factor Ratio RPM 1/8 1/6 1/4 1/3 1/2 3/ / / N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A * N/A N/A N/A N/A N/A * N/A N/A N/A N/A N/A ** N/A N/A N/A N/A N/A N/A * 832** * * 832** * Single Reduction Worm - Helical - Actual service factor may be greater than indicated. For actual service factors and maximum worm reducer ratings, refer to pages Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements. Refer to page 211 for exact ratio of helical primary stage and worm gear secondary stage. * Size 832 must be used for NH Series for this selection. ** Size 842 must be used for NH Series for this selection. indicates a selection where a smaller reducer (1 case size) can be used with redesigned product due to rating increase. indicates a selection where a smaller reducer (2 case sizes) can be used with redesigned product due to rating increase. Refer To Pages for Series K Helical-Bevel right angle gear reducers for higher horsepower selections not covered here 201

9 Worm - Helical Quick Selections GR NH EL Series 1.50 Service Factor Ratio RPM 1/8 1/6 1/4 1/3 1/2 3/ / / N/A N/A N/A N/A N/A N/A N/A N/A N/A * * N/A N/A N/A N/A N/A N/A N/A N/A * 832** N/A N/A N/A N/A N/A N/A N/A N/A ** * N/A N/A N/A * 832** * 832** * ** Service Factor Ratio RPM 1/8 1/6 1/4 1/3 1/2 3/ / / * N/A N/A N/A N/A ** N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ** N/A N/A N/A N/A N/A N/A * 832** ** ** * ** * 832** Service Factor Ratio RPM 1/8 1/6 1/4 1/3 1/2 3/ / / * N/A N/A N/A N/A * N/A N/A N/A * * 832** N/A N/A N/A N/A N/A N/A ** N/A N/A N/A * N/A N/A * 832** N/A N/A N/A ** * ** * ** Note: This chart is meant as a guide for reducer selections at specific motor horsepowers. Actual service factor may be greater than indicated. For actual service factors and maximum worm reducer ratings, refer to pages Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements. Refer to page 211 for exact ratio of helical primary stage and worm gear secondary stage. * Size 832 must be used for NH Series for this selection. ** Size 842 must be used for NH Series for this selection. indicates a selection where a smaller reducer (1 case size) can be used with redesigned product due to rating increase. indicates a selection where a smaller reducer (2 case sizes) can be used with redesigned product due to rating increase.

Quick Selections. How to Use Service Factor. Worm Gear Reducers. Single Reduction

Quick Selections. How to Use Service Factor. Worm Gear Reducers. Single Reduction Quick Selections How to Use Based on required output RPM and input motor horsepower, read across chart for the appropriate reducer size. As a rule of thumb, use 1.00 service factor chart for applications