Grove Gear GR Series - Ironman Worm Gear Reducers Cast Iron Single-Reduction Worm Reducer - GR-BM852-7.5-L-250
Part #:GR8520203.00
Catalog #:GR-BM852-7.5-L-250
KEY FEATURES
- 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.
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Product Specifications
Dimensions
| BF: | 0.53 | Center Distance (in): | 5.25 in |
| A: | 7.19 | D: | 5.12 |
| B: | 13 | L1: | 14.86 in |
| T: | 2 | AK: | 8.5 |
| BD: | 9 | AJ: | 7.25 |
| U: | 1.25 in | C: | 14 in |
| BE1: | 0.5 in | I: | 7.5 in |
| TAP Depth: | 1.25 in | L: | 10.88 in |
| O: | 4.78 in | N: | 9.06 |
| G: | 2.91 | J: | 11 in |
| H-Tap size: | 5/8-11 UNC in | F: | 5.81 |
| K: | 5.5 in |
Technical Specifications
| Output Style: | L | Input HP: | 28.1 |
| Reducer: | Worm - Right Angle | Service Factor: | 1 |
| Input RPM: | 1,750 | Shaft Seal Material: | Viton |
| Output RPM: | 233 | Input HP @ 1750 RPM: | 28.1 |
| Center Distance (in): | 5.25 | Series Style: | GR-BM-L |
| Output Diameter (in): | 2 in | Input Diameter (in): | 1.25 in |
| Model Code: | BM852 | Input Keyway: | 1/4 X 3.00 in |
| Output HP: | 26.7 | Gear Type: | Worm |
| Output Shaft Assembly Code: | L | Mounting Style: | Base |
| Input Bore (C Face): | 1.625 | Thrust Rating - output shaft: | 2021 |
| No. of Gear Reductions: | Single | Motor Frame Size: | 250 |
| Assembly: | BM-L | Output Shaft Orientation: | L |
| Frame Size: | 250TC | Reducer Style: | Worm - Right Angle |
| Series: | GR Series - Ironman Worm Gear Reducers | Output Key: | 1/2 X 3.50 |
| Input Style: | Flexible Coupling Input | Overhung Load: | 3,245 |
| Product Line: | GR Series - Ironman Worm Gear Reducers | Product Type: | Right Angle |
| Ratio: | 7.5:1 | Ratio Range: | 7.5:1 |
| Series Code: | GR | Reduction: | Single |
| Output Shaft Direction: | Left | Overhung Load Rating (Output Shaft(lb)): | 3,245 lb |
| Housing Material: | Cast Iron | Output Torque Rating (in-lb): | 7213 in/lbs |
| Output Shaft: | Solid Shaft |
General Specifications
| UPC: | 690310031810 | Weight: | 254.00 LB |

