# Grove Gear IronMan GR-BM842-20-D-180 GR8420137.00 20:1 Worm Gear Speed Reducer 4.25" Center Distance 180TC Input Double Extension Solid Output Cast Iron - MROSupply.com

***Grove Gear GR-BM842-20-D-180 GR8420137.00 20:1 ratio single-reduction worm gear speed reducer with 4.25" center distance, 180TC flexible coupling input, and double-extension solid output shaft. Cast iron IronMan series housing with blue paint, Viton seals, and base mounting. Delivers 6092 lb-in output torque at 1750 RPM input, with 3320 lb overhung load capacity.***



## Product details:

- Catalog number: GR8420137.00
- SKU: 1334212
- Price: ***$3,283.32*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Electra/Grove Gear](https://www.mrosupply.com/brands/electragrove-gear/)
- Category: 
    - [3-Piece Coupled Input Output Shaft Double Worm](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/3-piece-coupled-input-worm-gear-reducers/3-piece-coupled-input-output-shaft-double-worm/)
    - [3-Piece Coupled Input Worm Gear Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/3-piece-coupled-input-worm-gear-reducers/)
    - [Right Angle Worm Gear Speed Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/)
    - [Right Angle Speed Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/)
    - [Speed Reducers](htts://www.mrosupply.com/speed-reducers/)
- Unit of measure: each
- Weight: 154.000 lb
- UPC: 690310026762
- Technicall support: contact supplier for technical support on 800-626-2120


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Assembly: BM-D
  

  
- Center Distance: 4.2 In.
  

  
- Center distance (in): 4.25
  

  
- Center Distance Range: Above 3.25"
  

  
- Gear Drive Reductions: Single
  

  
- Gear Type: Worm
  

  
- H-Tap Size: 5/8 - 11 UNC
  

  
- Housing material: Cast iron
  

  
- HP Range: 7-1/2 (< 10)
  

  
- Input Bore (C Face): 1.125
  

  
- Input Diameter (in): 1.25
  

  
- Input Flange: 182-4TC
  

  
- Input HP: 9.462
  

  
- Input HP @ 1750 RPM: 9.462
  

  
- Input Keyway (C Face): 1/4 x 1/8
  

  
- Input RPM: 1750
  

  
- Input Style: 3-Piece Coupled
  

  
- Keyway: 1/4 X 2.50
  

  
- Max OHL (Output Shaft): 3320
  

  
- Max Thrust Load (Output Shaft): 2533
  

  
- Model Code: BM842
  

  
- Motor Frame Size: 180TC
  

  
- Mounting Style: Base
  

  
- No. of Gear Reductions: Single
  

  
- Output: Left & Right
  

  
- Output Diameter (in): 1.875
  

  
- Output HP: 8.458
  

  
- Output Key: 1/2 X 3.06
  

  
- Output RPM: 87
  

  
- Output Shaft Assembly Code: D
  

  
- Output Shaft Direction: Double
  

  
- Output Shaft Orientation: LR
  

  
- Output Style: D
  

  
- Output Torque: 6092
  

  
- Output Torque (lb-in): 6092
  

  
- Output Torque Range: 5000 to 10000 in lbs
  

  
- Output type: Solid Shaft
  

  
- Overhung Load: 3320
  

  
- Paint/Coating: Blue
  

  
- Product Line: GR Series - Ironman Worm Gear Reducers
  

  
- Product Type: Worm Speed Reducer
  

  
- Ratio: 20 to 1
  

  
- Ratio Range: 20-1
  

  
- Reducer: Worm - Right Angle
  

  
- Reducer Style: Worm - Right Angle
  

  
- Reducer Type: Single
  

  
- Series: GR Series - Ironman Worm Gear Reducers
  

  
- Series Code: GR
  

  
- Series Style: GR-BM-D
  

  
- Service Factor: 1
  

  
- Shaft Seal Material: Viton
  

  
- Size: 180TC
  

  
- TAP Depth: 1
  

  
- Thrust Rating - output shaft: 2533
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/13/34/1334438/Grove_Gear_GR842003600_Catalog_4MCFzaI.pdf)
- [GR-BM842-20-D-180_dimensions](https://documents.mrosupply.com/product_documents/GR/GR8130037.00/BM-GR.pdf)
- [Instruction/Installation Manual](https://documents.mrosupply.com/product_documents/13/41/1341843/Grove_Gear_EL813001400_Manual_GZR8HGy.pdf)
## Alternate products to `Grove Gear IronMan GR-BM842-20-D-180 GR8420137.00 20:1 Worm Gear Speed Reducer 4.25" Center Distance 180TC Input Double Extension Solid Output Cast Iron - MROSupply.com`:
- [Dodge 35A20LR18 TIGEAR-2 worm gear speed reducer with 20:1 ratio, 3-piece coupled input, double solid output shaft, 180TC frame, and 3.5" center distance. Cast iron housing with green paint, 5.79 HP input rating, and 1.5" output shaft diameter. Suitable for right-angle power transmission applications requiring high torque and compact design.](https://www.mrosupply.com/products/143643/as-markdown/)
- [Dodge 40A20LR18 TIGEAR-2 worm gear speed reducer with 20:1 ratio, 3-piece coupled input, double solid output shaft, 180TC frame, and 4" center distance. Cast iron housing with green paint. 1.875" output shaft diameter. 7.75 HP input rating, 6.69 HP output. Ideal for belt conveyors and moderate-duty applications.](https://www.mrosupply.com/products/143712/as-markdown/)

## Product's reviews:
- Right on - Took a bit to ship but after it shipped I got it fast. Right product.
- Gear box - excellent service, fast, easy, and customer service outstanding,
if any changes they call and let you know,
- Coach - Timely delivery in an untimely world.
- Enginiering - got what I need it the first time. no hassle, friendly customer service, communication is excellent, I am happy with the delivery time.