4 Ton 4-1/2" Snatch Block for Wire Rope Cable Roll Back Wrecker Tow Recovery4x4

Description

4 Ton 4-1/2" Snatch Block Wire Rope Cable Pulley Roll Back Wrecker Recovery 4x4
Description
Plate sided, painted, heavy duty snatch block with hook, 4-1/2" diameter sheave grooved for 1/2" wire rope. Sheave is equipped with bronze bushing and grease fitting (grease zerk). Working Load Limit: 4 tons. Weight: 12 lbs. Ultimate block strength is 4 times the working load limit.
Quantity 2
4-1/2" Sheave Diameter
4-1/2" snatch block for 3/8" OR 1/2" wire rope cable.
Swivel hook, drop side, bronze bushed with grease fitting.
Working Load Limit 4 Tons
Used for wreckers, tow trucks, four wheel drives and rigging
**  COLOR SHIPPED WILL VARY DEPENDING ON CURRENT STOCK AT TIME OF SHIPMENT **
All Items Paid by 3:00 PM EST will be
SHIPPED SAME DAY
through USPS Priority Mail
LOADS ON PULLEY BLOCKS
A single sheave block used to change load line direction can be subjected to total loads greatly different from the weight being lifted or pulled. The total load value varies with the angle between the incoming and departing lines to the block. When these lines run parallel (0 degree angle between the incoming and departing lines), load on the block will be 2 times the line load.
The following chart indicates the factor to be multiplied by the line load to obtain the total load on the block.
Angle Factor Multipliers
Angle
Factor
Angle
Factor
0°
2.00
100°
1.29
10°
1.99
110°
1.15
20°
1.97
120°
1.00
30°
1.93
130°
.84
40°
1.87
135°
.76
45°
1.84
140°
.68
50°
1.81
150°
.52
60°
1.73
160°
.35
70°
1.64
170°
.17
80°
1.53
180°
.00
90°
1.41
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CAUTION
:
Do NOT use Breaking Strength for design or rating purposes. Use Working Load Limit instead. Indus hardware Supply Co assumes no responsibility for the use, misuse or misapplication of its products. Products are sold with the specific understanding that the purchaser and/or user are thoroughly familiar with their proper use.