Lifting Block Loading – Angle Factor Multipliers
A single line sheave block used to change load line direction can be subject to total loads greatly different from the line pull.
Angle Factor Multipliers
Angle | Factor | Angle | Factor |
---|---|---|---|
0° | 2 | 100° | 1.29 |
10° | 1.99 | 110° | 1.15 |
20° | 1.97 | 120° | 1 |
30° | 1.93 | 130° | 0.84 |
40° | 1.87 | 135° | 0.76 |
45° | 1.84 | 140° | 0.68 |
50° | 1.81 | 150° | 0.52 |
60° | 1.73 | 160° | 0.35 |
70° | 1.64 | 170° | 0.17 |
80° | 1.53 | 180° | 0 |
90° | 1.41 | — | — |
Total Load = Line Pull x Angle Factor
Example:
At 45 degrees, and 10,000 lb. line pull, Total Load = 10,000 x 1.84 = 18,400 lbs.
Load Limits Contents
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Inspection of Slings
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Wire Rope Sling Connections and Hitches
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Chain Sling Connections and Hitches
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Web Sling and Roundsling Capacities
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Twin-Path® Extra Covermax Specifications
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Synthetic Sling Load Limits
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Wire Rope Load Limits
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Grade 100 (10) Alloy Chain
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The Basic Rigging Plan
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Inspection of Rigging Hardware
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Crosby® Wire Rope Clips
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Crosby® Links, Rings and Turnbuckles
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Crosby® Shackle and Hook Load Limits
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Crosby® Shoulder Eye Bolt and Swivel Hoist Ring Load Limits
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Center of Gravity and Sling Loading
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Sling Angles
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Risk Management
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Operating Practices and Load Control
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Block Selection and Application Guide
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Working With Blocks
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Rigging With Blocks
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Block Loading - Angle Factor Multipliers
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Sheave Inspection
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Block Hook Inspection
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Nylon Slings Load Limits
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Load Limit Definitions
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Take it with you - Get Our Load Limit App
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