Worm
Grove Gear NH-HM821-25-H1-56-16
Grove Gear NH Series - Ironman Narrow Housing Worm Gear Reducers Cast Iron Single-Reduction Worm Reducer
Product Type
Right Angle
Series
NH Series - Ironman Narrow Housing Worm Gear Reducers
Motor Frame Size
56C
Output Key
1/4 X 2.50
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- Rugged cast iron housings, covers, and flanges provide superior strength and rigidity.
- Factory-filled with premium Mobil Glygoyle 460 polyalkalene glycol lubricant.
- Large oil capacity provides positive splash lubrication and superior cooling capability.
- Viton® double lip seals provide extended life through increased resistance to high temperature, abrasion and chemicals.
- O-rings on all bearing covers, eliminating gaskets, sealants and leaks.
- Oversized high-speed bearings, positively retained for frequent reversing and start/stop cycles. Tapered roller bearings on output shaft for high overhung and thrust load capacities.
- The unique quill seal guard protects the input seal from damage during motor installation.
- Bronze worm gear chill cast from high quality bronze for maximum strength, lubricity and superior life.
- All units are 100% run and leak tested at the factory to insure that you receive the highest quality product.
- Ultimate application flexibility with all-angle mounting provisions, the widest selection of accessory bases and flanges and the largest selection of stock reducer styles.
- Output Key
- 1/4 X 2.50
- Motor Frame Size
- 56C
- Ratio Range
- 25:1
- BD
- 6.5
- G
- 1.82
- BE
- 0.38
- Output HP
- 1.094
- Series Style
- NH-HM-H1
- Input RPM
- 1,750
- Output RPM
- 70
- AF
- 0.19
- AB
- 3.69
- Gear Type
- Worm
- Frame Size
- 56C
- AA
- 8
- HP Range
- 1 to 1-1/2 (< 2)
- Center Distance Range
- 1" thru 3.25"
- Reducer
- Worm - Right Angle
- Shaft Seal Material
- Viton
- Input Keyway
- 3/16 X1.38
- LL
- 2.12
- Product Type
- Right Angle
- Center Distance (in)
- 2.06
- V
- 1.94
- BF
- 0.41
- No. of Gear Reductions
- Single
- Output Shaft Assembly Code
- H1
- T
- 1
- H
- 0.53
- Input Bore (C Face)
- 0.625
- Service Factor
- 1
- AK
- 4.5
- Model Code
- HM821
- Cd
- 2.06
- Assembly
- HM-H1
- B
- 4.5
- LM
- 7.07
- AJ
- 5.88
- Input HP
- 1.333
- Mounting Style
- Shaft Mount
- U
- 0.625
- Input Style
- Flexible Coupling Input
- Reducer Style
- Worm - Right Angle
- Input Diameter (in)
- 0.625
- AE2
- 0.85
- AE1
- 0.3
- Output Diameter (in)
- 1
- Ratio
- 25:1
- L
- 4.82
- D
- 2.31
- Output Shaft Orientation
- H1
- I
- 3.61
- Output Torque Range
- 500 to 1000 in lbs
- Input Keyway (C Face)
- 3/16 x 3/32
- Input HP @ 1750 RPM
- 1.333
- Product Line
- NH Series - Ironman Narrow Housing Worm Gear Reducers
- P
- 1.38
- AG
- 4.65
- Max Thrust Load (Output Shaft)
- 1144
- Output Style
- H1
- Reduction
- Single
- Output Shaft Direction
- H1
- Housing Material
- Cast Iron
- Output Torque Rating (in-lb)
- 985
- Output Shaft
- Hollow Bore
- Overhung Load Rating (Output Shaft(lb))
- 775
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Grove Gear
- Mfg. Catalog Numberi
- NH-HM821-25-H1-56-16
- Mfg. Part Numberi
- NH8210518.16
- GDS #i
- GDS-156846
- Categoryi
- Worm
- UPCi
- 690310063293
- Series Codei
- NH
- Bore Codei
- 16
- Seriesi
- NH Series - Ironman Narrow Housing Worm Gear Reducers
Common Questions
How do I get a price for the NH-HM821-25-H1-56-16?
This part is quoted individually. Request a quote from this page and our sales team will respond with current pricing and availability.
Is this a genuine Grove Gear part?
Yes. GDS Supply supplies the genuine Grove Gear NH-HM821-25-H1-56-16, manufacturer article number NH8210518.16. Its UPC is 690310063293.
