# Grove Gear GRL-BM821-20-L-56 GRL8210041.00 Leeson IronMan Interchange 20:1 Cast Iron Worm Gear Speed Reducer 2.06" Center Distance 56C Input Left Hand Solid Output - MROSupply.com

***Grove Gear GRL-BM821-20-L-56 GRL8210041.00 Leeson IronMan Interchange cast iron single-reduction worm gear speed reducer, 20:1 ratio, 2.06" center distance. 56C flexible coupling input with 0.625" input diameter, 1" output diameter, left-hand solid output shaft. Blue painted housing with Viton seals.***



## Product details:

- Catalog number: GRL8210041.00
- SKU: 1341523
- Price: ***$1,009.91*** 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 Left 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-output-shaft-left-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: 30.000 lb
- UPC: 690310047156
- Technicall support: contact supplier for technical support on 800-626-2120


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


## Product attributes;

  
- Assembly: BM-L
  

  
- Center Distance: 2.1 In.
  

  
- Center distance (in): 2.06
  

  
- Center Distance Range: 1" thru 3.25"
  

  
- Gear Drive Reductions: Single
  

  
- Gear Type: Worm
  

  
- H-Tap Size: 5/16-18 UNC
  

  
- Height (in): 10.50
  

  
- Housing material: Cast iron
  

  
- HP Range: 1 to 1-1/2 (< 2)
  

  
- Input Bore (C Face): 0.625
  

  
- Input Diameter (in): 0.625
  

  
- Input Flange: 56C
  

  
- Input HP: 1.584
  

  
- Input HP @ 1750 RPM: 1.584
  

  
- Input RPM: 1750
  

  
- Input Style: 3-Piece Coupled
  

  
- Keyway: 3/16 X 3/32
  

  
- Length (in): 10.69
  

  
- Max OHL (Output Shaft): 1175
  

  
- Max Thrust Load (Output Shaft): 1144
  

  
- Model Code: BM821
  

  
- Motor Frame Size: 56
  

  
- Motor HP Rating: 1.5
  

  
- Mounting Style: No Base
  

  
- No. of Gear Reductions: Single
  

  
- Output: Left
  

  
- Output Diameter (in): 1.000
  

  
- Output HP: 1.338
  

  
- Output Key: 1/4 X 1.44
  

  
- Output RPM: 87
  

  
- Output Shaft Assembly Code: L
  

  
- Output Shaft Direction: Left
  

  
- Output Shaft Orientation: L
  

  
- Output Style: L
  

  
- Output Torque: 964
  

  
- Output Torque Range: 500 to 1000 in lbs
  

  
- Output type: Solid Shaft
  

  
- Overhung Load: 1175
  

  
- Paint/Coating: Blue
  

  
- Product Line: GRL Series - Ironman Worm Gear Reducers
  

  
- Product Type: Right Angle
  

  
- Ratio: 20 to 1
  

  
- Ratio Range: 20-1
  

  
- Reducer: Worm - Right Angle
  

  
- Reducer Style: Worm - Right Angle
  

  
- Reducer Type: Single
  

  
- Series: GRL Series - Ironman Worm Gear Reducers
  

  
- Series Code: GRL
  

  
- Series Style: GRL-BM-L
  

  
- Series Type: Cast Iron 800 Worm Gear Reducers
  

  
- Service Factor: 1
  

  
- Shaft Seal Material: Viton
  

  
- Size: 56C
  

  
- TAP Depth: 0.63
  

  
- Thrust Rating - output shaft: 1144
  

  
- Width (in): 9.06
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/13/39/1339488/Grove_Gear_GRG821003600_Catalog_2ps339z.pdf)
- [GRL-BM821-20-L-56_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)
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## Product's reviews:
- Grove gear - ordered it got a week early was exact to the specs performed flawlessly
- 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.
- Enginiering - got what I need it the first time. no hassle, friendly customer service, communication is excellent, I am happy with the delivery time.
- Gearbox gold - Great Gearbox, great price, free shipping!