# Grove Gear IronMan GR-B842-50-R GR8420021.00 50:1 Single-Reduction Worm Gear Speed Reducer 4.25" Center Distance Right-Hand Solid Output Cast Iron - MROSupply.com

***Grove Gear IronMan GR-B842-50-R (catalog GR8420021.00) 50:1 ratio single-reduction worm gear speed reducer with 4.25" center distance, right-hand solid output shaft, 1.25" input diameter, and 1.875" output diameter. Cast iron housing with blue paint, Viton shaft seals, and base mounting. Delivers 4.389 input HP at 1750 RPM, 3.426 output HP at 35 RPM, and 5078 lb-in output torque. Suitable for industrial power transmission applications requiring durable right-angle speed reduction.***



## Product details:

- Catalog number: GR8420021.00
- SKU: 1334096
- Price: ***$2,732.88*** 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: 
    - [Solid Input Shaft Solid Output Shaft Right Worm](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/solid-input-shaft-worm-gear-reducers/solid-input-shaft-solid-output-shaft-right-worm/)
    - [Solid Input Shaft Worm Gear Reducers](htts://www.mrosupply.com/speed-reducers/right-angle-speed-reducers/right-angle-worm-gear-speed-reducers/solid-input-shaft-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: 136.000 lb
- UPC: 690310026229
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Assembly: B-R
  

  
- 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: 3HP (< 5)
  

  
- Input Diameter (in): 1.25
  

  
- Input HP: 5.088
  

  
- Input HP @ 1750 RPM: 4.389
  

  
- Input RPM: 2500
  

  
- Input Style: Solid Input Shaft
  

  
- Keyway: 1/4 X 2.50
  

  
- Max OHL (Output Shaft): 3730
  

  
- Max Thrust Load (Output Shaft): 2533
  

  
- Model Code: B842
  

  
- Mounting Style: Base
  

  
- No. of Gear Reductions: Single
  

  
- Output: Right
  

  
- Output Diameter (in): 1.875
  

  
- Output HP: 3.426
  

  
- Output Key: 1/2 X 3.06
  

  
- Output RPM: 35
  

  
- Output Shaft: Solid Shaft
  

  
- Output Shaft Assembly Code: R
  

  
- Output Shaft Direction: Right
  

  
- Output Shaft Orientation: R
  

  
- Output Style: R
  

  
- Output Torque: 6170
  

  
- Output Torque (lb-in): 5078
  

  
- Output Torque Range: 5000 to 10000 in lbs
  

  
- Output type: Solid Shaft
  

  
- Overhung Load: 3730
  

  
- Paint/Coating: Blue
  

  
- Product Line: GR Series - Ironman Worm Gear Reducers
  

  
- Product Type: Worm Speed Reducer
  

  
- Ratio: 50 to 1
  

  
- Ratio Range: 50-1
  

  
- Reducer: Worm - Right Angle
  

  
- Reducer Style: Worm - Right Angle
  

  
- Series: GR Series - Ironman Worm Gear Reducers
  

  
- Series Code: GR
  

  
- Series Style: GR-B-R
  

  
- Service Factor: 1
  

  
- Shaft Seal Material: Viton
  

  
- 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-B842-50-R_dimensions](https://documents.mrosupply.com/product_documents/GR/GR81005517.00/B-GR.pdf)
- [Instruction/Installation Manual](https://documents.mrosupply.com/product_documents/13/41/1341843/Grove_Gear_EL813001400_Manual_GZR8HGy.pdf)

## Product's reviews:
- Replacement for an obsolete gearbox - We needed this gearbox as a replacement for an obsolete model made by Grove Gear back in the 90&#39;s. Needed to call the company to find out the equivalent and they directed me towards MRO. If this one will last as long as its predecessor I&#39;ll be retired by the time it will need to be replaced again.
- Gear box - excellent service, fast, easy, and customer service outstanding,
if any changes they call and let you know,
- Grove gear - ordered it got a week early was exact to the specs performed flawlessly
- Coach - Timely delivery in an untimely world.