# Grove Gear Narrow Housing NH-BM842-30-L-210 NH8420151.00 30:1 Single-Reduction Worm Gear Speed Reducer 4.25" Center Distance 210TC Input Solid Output Left Hand Cast Iron - MROSupply.com

***Grove Gear Narrow Housing NH-BM842-30-L-210 NH8420151.00 30:1 ratio, 1.25" input diameter, 1.75" output diameter, right angle cast iron single-reduction worm gear speed reducer with 4.25" center distance, 210TC motorized quill input, and solid left-hand output.***



## Product details:

- Catalog number: NH8420151.00
- SKU: 1349252
- Price: ***$3,378.39*** 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: 131.000 lb
- UPC: 690310079652
- 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: 4.2 In.
  

  
- Center distance (in): 4.25
  

  
- Center Distance Range: Above 3.25"
  

  
- Gear Drive Reductions: Single
  

  
- Gear Type: Worm
  

  
- H-Tap Size: 1/2 - 13 UNC
  

  
- Housing material: Cast iron
  

  
- HP Range: 5HP (< 7-1/2)
  

  
- Input Bore (C Face): 1.375
  

  
- Input Diameter (in): 1.25
  

  
- Input Flange: 210TC
  

  
- Input HP: 6.481
  

  
- Input HP @ 1750 RPM: 6.481
  

  
- Input Keyway (C Face): 5/16 x 5/32
  

  
- Input RPM: 1750
  

  
- Input Style: 3-Piece Coupled
  

  
- Keyway: 1/4 X 2.50
  

  
- Max OHL (Output Shaft): 3550
  

  
- Max Thrust Load (Output Shaft): 2533
  

  
- Model Code: BM842
  

  
- Motor Frame Size: 210
  

  
- Mounting Style: Base
  

  
- No. of Gear Reductions: Single
  

  
- Output: Left
  

  
- Output Diameter (in): 1.750
  

  
- Output HP: 5.517
  

  
- Output Key: 3/8 x 2.25
  

  
- Output RPM: 58
  

  
- Output Shaft Assembly Code: L
  

  
- Output Shaft Direction: Left
  

  
- Output Shaft Orientation: L
  

  
- Output Style: L
  

  
- Output Torque: 5960
  

  
- Output Torque Range: 5000 to 10000 in lbs
  

  
- Output type: Solid Shaft
  

  
- Overhung Load: 3550
  

  
- Paint/Coating: Blue
  

  
- Product Line: NH Series - Ironman Narrow Housing Worm Gear Reducers
  

  
- Product Type: Right Angle
  

  
- Ratio: 30 to 1
  

  
- Ratio Range: 30-1
  

  
- Reducer: Worm - Right Angle
  

  
- Reducer Style: Worm - Right Angle
  

  
- Reducer Type: Single
  

  
- Series: NH Series - Ironman Narrow Housing Worm Gear Reducers
  

  
- Series Code: NH
  

  
- Series Style: NH-BM-L
  

  
- Service Factor: 1
  

  
- Shaft Seal Material: Viton
  

  
- Size: 210TC
  

  
- TAP Depth: 1
  

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

- [Catalog](https://documents.mrosupply.com/product_documents/13/49/1349446/Grove_Gear_NH842000100_Catalog_XGusoZD.pdf)
- [Instruction/Installation Manual](https://documents.mrosupply.com/product_documents/13/41/1341843/Grove_Gear_EL813001400_Manual_GZR8HGy.pdf)
- [NH-BM842-30-L-210_dimensions](https://documents.mrosupply.com/product_documents/NH/NH8130037.00/BM-NH.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.
- Right on - Took a bit to ship but after it shipped I got it fast. Right product.
- Coach - Timely delivery in an untimely world.