# Grove Gear IronMan GR-HM830-40-H1-56-20 GR8300520.20 40:1 Single Reduction Worm Gear Speed Reducer 3.00" Center Distance 56C Input Hollow Output Cast Iron - MROSupply.com

***Grove Gear GR-HM830-40-H1-56-20 (catalog GR8300520.20) 40:1 ratio single reduction worm gear speed reducer with 3.00" center distance. Cast iron housing with 56C motorized flexible coupling input, 0.875" input diameter, and 1.250" hollow output bore. Universal hand hollow output. Right angle configuration.***



## Product details:

- Catalog number: GR8300520.20
- SKU: 1332020
- Price: ***$2,283.65*** 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: 
    - [56C Input Flange 3-Piece Coupled](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-hollow-bore-output-worm-gear/56c-input-flange-3-piece-coupled/)
    - [3-Piece Coupled Input Hollow Bore Output Worm Gear](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-hollow-bore-output-worm-gear/)
    - [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: 70.000 lb
- UPC: 690310020449
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Assembly: HM-H1
  

  
- Bore Code: 20
  

  
- Center Distance: 3 In.
  

  
- Center distance (in): 3.00
  

  
- Center Distance Range: 1" thru 3.25"
  

  
- Gear Drive Reductions: Single
  

  
- Gear Type: Worm
  

  
- Housing material: Cast iron
  

  
- HP Range: 2 HP to (< 3)HP
  

  
- Input Bore (C Face): 0.625
  

  
- Input Diameter (in): 0.875
  

  
- Input Flange: 56C
  

  
- Input HP: 2.251
  

  
- Input HP @ 1750 RPM: 2.251
  

  
- Input Keyway (C Face): 3/16 x 3/32
  

  
- Input RPM: 1750
  

  
- Input Style: 3-Piece Coupled
  

  
- Keyway: 3/16 X 1.63
  

  
- Max OHL (Output Shaft): 2170
  

  
- Max Thrust Load (Output Shaft): 2574
  

  
- Model Code: HM830
  

  
- Motor Frame Size: 56
  

  
- Mounting Style: Shaft Mount
  

  
- No. of Gear Reductions: Single
  

  
- Output: Hollow
  

  
- Output Diameter (in): 1.250
  

  
- Output Hollow Shaft Diameter (in): 1.250
  

  
- Output HP: 1.72
  

  
- Output Key: 1/4 X 2.50
  

  
- Output RPM: 43
  

  
- Output Shaft Assembly Code: H1
  

  
- Output Shaft Direction: H1
  

  
- Output Shaft Orientation: H1
  

  
- Output Style: H1
  

  
- Output Torque: 2477
  

  
- Output Torque (lb-in): 2477
  

  
- Output Torque Range: 1000 to 2500 in lbs
  

  
- Output type: Hollow bore
  

  
- Overhung Load Rating (Output Shaft(lb)): 2170
  

  
- Paint/Coating: Blue
  

  
- Product Line: GR Series - Ironman Worm Gear Reducers
  

  
- Product Type: Right Angle
  

  
- Ratio: 40 to 1
  

  
- Ratio Range: 40-1
  

  
- 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-HM-H1
  

  
- Service Factor: 1
  

  
- Shaft Seal Material: Viton
  

  
- Size: 56C
  

  
- Thrust Rating - output shaft: 2574
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/13/32/1332102/Grove_Gear_GR830050328_Catalog_Zv2xWbG.pdf)
- [GR-HM830-40-H-56-20_dimensions](https://documents.mrosupply.com/product_documents/GR/GR8130513.10/HM-GR.pdf)
- [Instruction/Installation Manual](https://documents.mrosupply.com/product_documents/13/41/1341843/Grove_Gear_EL813001400_Manual_GZR8HGy.pdf)

## Product's reviews:
- Gearbox gold - Great Gearbox, great price, free shipping!
- 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.
- Grove gear - ordered it got a week early was exact to the specs performed flawlessly
- Coach - Timely delivery in an untimely world.