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Worm
Grove Gear GRG-UM821-50-R-56
Grove Gear GR Series - Ironman Worm Gear Reducers Cast Iron Single-Reduction Worm Reducer
Product Type
Right Angle
Series
GR Series - Ironman Worm Gear Reducers
Motor Frame Size
56C
AK
4.5
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- One-piece cast iron housings with single output cover design, CNC machined for precise component fit and alignment.
- 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.
- 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.
- 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.
- 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.
- Mounting dimensions are interchangeable with most industry standard reducers.
- AK
- 4.5
- BF
- 0.41
- No. of Gear Reductions
- Single
- Keyway
- 3/16 X 3/32
- F
- 4.69
- H
- 0.47
- Input RPM
- 1,750
- BE
- 0.38
- V
- 0.72
- Input HP
- 0.769
- AJ
- 5.88
- Cd
- 2.06
- Mounting Style
- Horizontal Base, Worm Under
- Overhung Load
- 1,385
- I
- 3.61
- LM
- 7.07
- Output RPM
- 35
- Output Shaft Orientation
- R
- J
- 6.38
- T
- 1
- G
- 2.34
- L
- 4.82
- Output Style
- R
- Series Type
- Cast Iron 800 Worm Gear Reducers
- Input Style
- C-Face Coupled
- Output Shaft Assembly Code
- R
- D
- 2.75
- BD
- 6.5
- Output HP
- 0.539
- O
- 2.29
- U
- 0.625
- Output Key
- 1/4 X 1.44
- Reducer Style
- Worm - Right Angle
- K
- 3.19
- B
- 7.69
- C
- 7.09
- Series Style
- GRG-UM-R
- N
- 4.68
- Frame Size
- 56C
- Center Distance (in)
- 2.06
- A
- 6
- Ratio
- 50:1
- Output Diameter (in)
- 1.000
- Input Keyway (C Face)
- 3/16 x 3/32
- Input Diameter (in)
- 0.625
- Motor Frame Size
- 56C
- Product Type
- Right Angle
- Center Distance Range
- 1" thru 3.25"
- Service Factor
- 1
- Product Line
- GR Series - Ironman Worm Gear Reducers
- Model Code
- UM821
- Gear Type
- Worm
- Reducer
- Worm - Right Angle
- Assembly
- UM-R
- Input Bore (C Face)
- 0.625
- Ratio Range
- 50:1
- Input Keyway
- 3/16 X 1.38
- Shaft Seal Material
- Viton
- Output Torque Range
- 500 to 1000 in lbs
- HP Range
- 1/2 to 3/4 HP (< 1)
- Reduction
- Single
- Output Shaft Direction
- Right
- Housing Material
- Cast Iron
- Output Shaft
- Shaft
- Output Torque Rating (in-lb)
- 970
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Grove Gear
- Mfg. Catalog Numberi
- GRG-UM821-50-R-56
- Mfg. Part Numberi
- GRGU21002033.00
- GDS #i
- GDS-153662
- Categoryi
- Worm
- Series Codei
- GRG
- Seriesi
- GR Series - Ironman Worm Gear Reducers
Common Questions
How do I get a price for the GRG-UM821-50-R-56?
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 GRG-UM821-50-R-56, manufacturer article number GRGU21002033.00.
