SPUR GEAR HAND WINCHES DOUBLE REDUCTION
M452 / M452B / M452B-A / M492 / M492B / M492-12 / M492B-12 / MB451 / MB491 / HW452 / HW492
Up to 10,000 lb. capacity
- Machine Cut Spur Gears for accurate and long lasting service.
- Automatic Brake Models provide positive load control for lifting and lowering operations. Brake models have B suffix.
- Corrosion Resistant durable paint finish combined with zinc and iridescent dichromate plating protects against corrosion.
- Bronze and Radial Ball Bearings provide smooth and efficient operation.
- Large Diameter Drums minimize wear to extend wire rope life.
- Spring Loaded Ratchets for positive engagement with gear.
- Steel Gear Covers protect gears and help prevent injuries.
- Handles Adjust in length to change force required to move load.
- Two-year Limited Warranty
Description
| LOAD RATING (LB.) | DRUM CAPACITY (FT.)1 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MODEL NUMBER | DESCRIPTION | 1ST LAYER | MID DRUM | FULL DRUM | WIRE ROPE DIA. (IN) | 1ST LAYER | MID DRUM | FULL DRUM | SINGLE GEAR RATIO | DOUBLE GEAR RATIO | FORCE2 TO LIFT 1000 LB. | APPROX SHIP WT. (LB) |
| M452 | 4000 lb. – marine duty (for pulling only) | 4000 | 3300 | 2500 | 1/4 5/16 3/8 |
23 18 14 |
130 89 64 |
300 200 140 |
4.42:1 | 19.54:1 | 10 lb. (double gear) |
83 |
| M452B | 4000 lb. – marine duty with brake (for lifting) | 4000 | 3300 | 2500 | 1/4 5/16 3/8 |
23 18 14 |
130 89 64 |
300 200 140 |
— | 19.54:1 | 10 lb. (double gear) |
91 |
| M452-B | 4000 lb. – marine duty with brake (for lifting) 4 inch drum width | 4000 | 3300 | 2500 | 1/4 5/16 3/8 |
13 9 7 |
83 56 40 |
190 120 89 |
— | 19.54:1 | 10 lb. (double gear) |
83 |
| M492 | 10,000 lb. – marine duty (for pulling only) | 10,000 | 7400 | 5400 | 5/16 3/8 1/2 |
27 21 15 |
240 170 100 |
540 390 230 |
5.00:1 | 25.00:1 | 8 lb. (double gear) |
166 |
| M492B | 10,000 lb. – marine duty with brake (for lifting) | 10,000 | 7400 | 5400 | 5/16 3/8 1/2 |
27 21 15 |
240 170 100 |
540 390 230 |
— | 25.00:1 | 8 lb. (double gear) |
173 |
| M492-12 | 10,000 lb. – marine duty (for pulling only) 12 inch drum width | 10,000 | 7400 | 5400 | 5/16 3/8 1/2 |
46 37 27 |
380 270 160 |
850 610 360 |
5.00:1 | 25.00:1 | 8 lb. (double gear) |
175 |
| M492B-12 | 10,000 lb. – marine duty with brake (for lifting) 12 inch drum width | 10,000 | 7400 | 5400 | 5/16 3/8 1/2 |
46 37 27 |
380 270 160 |
850 610 360 |
— | 25.00:1 | 8 lb. (double gear) |
190 |
| MB451 | disc brake only for M452 (for lifting) | 13 | ||||||||||
| MB491 | disc brake only for M492 and M492-12 (for lifting) | 15 | ||||||||||
| HW452 | hand wheel only for M452 (for pulling only) | 19 | ||||||||||
| HW492 | hand wheel only for M492 and M492-12 (for pulling only) | 20 | ||||||||||
1 Actual drum capacities may be 25-30% less, due to nonuniform winding. Wire rope tension will also affect drum capacity.
2 Approximate handle force required to lift 1000 lb. with an empty drum, and maximum handle length.
Model M452B shown with Disc Brake and Wire Rope.
None.
