LIFTINGSAFETY
Yoke 501 Series Snatch Block with Shackle - Range from 2000kg to 8000kg

Yoke 501 Series Snatch Block with Shackle - Range from 2000kg to 8000kg

Light pulley block fitted with a bow shackle and built in RFID chip. To suit wire line sizes between 8 and 19mm.

Model: 

8-501-xx / SBWS-2836

Yoke 501 Series Snatch Block with Shackle - Range from 2000kg to 8000kg

8-501-02 and 8-501-04 8-501-08 and Up

Features

  • YOKE Light Snatch Blocks are manufactured of the highest quality tensile steel.
  • Available from 2 tonnes to 8 tonnes, for wire rope sizes 8mm to 19mm.
  • Certified by CCS, UKCA Type Approval.
  • Part number, wire rope size and working load limit are marked on each block.
  • Permanent batch codes link to test certificates for easy traceability.
  • Supplied with bronze bushings and 3.0”-14” with pressure lube fittings.
  • Meets or exceeds all requirements of ASME B30.26.
  • Safety factor 4:1
  • Fatigue rated
  • Supplied with a Certificate of Conformity
  • Factory fitted with an RFID chip for serial and certificate traceability.
  • Sheave groove bottom is hardened to 35 Rc to maximise durability.
  • Closed die forged steel sheave

Specifications

Item No. WLL (t) Sheave Dia. (inch) Bearing Type Wire Rope Size (mm) Weight (lbs) Weight (kg)
8-501-02 2 3 Bronze Bushing 8-10 4 2
8-501-04 4 4.5 Bronze Bushing 10-13 13 6
8-501-08 8 6 Bronze Bushing 16-19 29 13
8-501-0808 8 8 Bronze Bushing 16-19 44 20
8-501-0810 8 10 Bronze Bushing 16-19 46 21
8-501-0812-16 8 12 Bronze Bushing 16 49 22
8-501-0812-19 8 12 Bronze Bushing 19 49 22
8-501-0814-16 8 14 Bronze Bushing 16 56 25
8-501-0814-19 8 14 Bronze Bushing 19 56 25

Dimensions

Item No. B (mm) E (mm) F (mm) G (mm) L (mm) R (mm) T (mm)
8-501-02 19 64 11 75 228 217 11
8-501-04 34 82 19 108 355 336 19
8-501-08 64 112 32 152 483 451 32
8-501-0808 64 112 32 220 557 525 32
8-501-0810 64 112 32 264 598 566 32
8-501-0812-16 64 112 32 310 658 626 32
8-501-0812-19 64 112 32 310 658 626 32
8-501-0814-16 64 112 32 356 696 664 32
8-501-0814-19 64 112 32 356 696 664 32

*Minimum Ultimate Load is 4 times the Working Load Limit.

Dimensional Drawing

Loads on Blocks

Angle Factor Multipliers

The Working Load Limit (WLL) for Yoke Group blocks indicates the maximum load that should be exerted on the block and its connecting fitting. This total load value may be different from the weight being lifted or pulled by a hoisting system. It is necessary to determine the total load being imposed on each block in the system to properly determine the rated capacity block to be used. 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.

The following chart indicates the factor to be multiplied by the line pull to obtain the total load on the block.

Angle Factor
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 - -

Sheave Size and Wire Rope Strength

Ratio A Strength Efficiency Compared to Catalogue Strength in % Ratio A Strength Efficiency Compared to Catalogue Strength in %
40 95 8 83
30 93 6 79
20 91 4 75
15 89 2 65
10 86 1 50

Strength Efficiency

Bending wire rope reduces its strength. To account for the effect of bend radius on wire rope strength when selecting a sheave, use the table above.

Ratio B Relative Fatigue Bending Life Ratio B Relative Fatigue Bending Life
30 10 16 2.1
25 6.6 14 1.5
20 3.8 12 1.1
18 2.9 - -
 
Part N° WLL (t) Sheave Dia. (inch) Bearing Type Wire Rope Size (mm) Weight (kg) Unit Price Quantity
2836-T28749
8-501-02 		2 3 Bronze Bushing 8-10 2 £  145.00
2836-T28750
8-501-04 		4 4.5 Bronze Bushing 10-13 6 £  255.00
2836-T28751
8-501-08 		8 6 Bronze Bushing 16-19 13 £  500.00
2836-T28752
8-501-0808 		8 8 Bronze Bushing 16-19 20 £  580.00
2836-T28753
8-501-0810 		8 10 Bronze Bushing 16-19 21 Quote Required
2836-T28754
8-501-0812-16 		8 12 Bronze Bushing 16 22 Quote Required
2836-T28755
8-501-0812-19 		8 12 Bronze Bushing 19 22 Quote Required
2836-T28756
8-501-0814-16 		8 14 Bronze Bushing 16 25 Quote Required
2836-T28757
8-501-0814-19 		8 14 Bronze Bushing 19 25 Quote Required
   
Description

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Features

  • YOKE Light Snatch Blocks are manufactured of the highest quality tensile steel.
  • Available from 2 tonnes to 8 tonnes, for wire rope sizes 8mm to 19mm.
  • Certified by CCS, UKCA Type Approval.
  • Part number, wire rope size and working load limit are marked on each block.
  • Permanent batch codes link to test certificates for easy traceability.
  • Supplied with bronze bushings and 3.0”-14” with pressure lube fittings.
  • Meets or exceeds all requirements of ASME B30.26.
  • Safety factor 4:1
  • Fatigue rated
  • Supplied with a Certificate of Conformity
  • Factory fitted with an RFID chip for serial and certificate traceability.
  • Sheave groove bottom is hardened to 35 Rc to maximise durability.
  • Closed die forged steel sheave

Specifications

Item No. WLL (t) Sheave Dia. (inch) Bearing Type Wire Rope Size (mm) Weight (lbs) Weight (kg)
8-501-02 2 3 Bronze Bushing 8-10 4 2
8-501-04 4 4.5 Bronze Bushing 10-13 13 6
8-501-08 8 6 Bronze Bushing 16-19 29 13
8-501-0808 8 8 Bronze Bushing 16-19 44 20
8-501-0810 8 10 Bronze Bushing 16-19 46 21
8-501-0812-16 8 12 Bronze Bushing 16 49 22
8-501-0812-19 8 12 Bronze Bushing 19 49 22
8-501-0814-16 8 14 Bronze Bushing 16 56 25
8-501-0814-19 8 14 Bronze Bushing 19 56 25

Dimensions

Item No. B (mm) E (mm) F (mm) G (mm) L (mm) R (mm) T (mm)
8-501-02 19 64 11 75 228 217 11
8-501-04 34 82 19 108 355 336 19
8-501-08 64 112 32 152 483 451 32
8-501-0808 64 112 32 220 557 525 32
8-501-0810 64 112 32 264 598 566 32
8-501-0812-16 64 112 32 310 658 626 32
8-501-0812-19 64 112 32 310 658 626 32
8-501-0814-16 64 112 32 356 696 664 32
8-501-0814-19 64 112 32 356 696 664 32

*Minimum Ultimate Load is 4 times the Working Load Limit.

Dimensional Drawing
Load on Blocks

+

Loads on Blocks

Angle Factor Multipliers

The Working Load Limit (WLL) for Yoke Group blocks indicates the maximum load that should be exerted on the block and its connecting fitting. This total load value may be different from the weight being lifted or pulled by a hoisting system. It is necessary to determine the total load being imposed on each block in the system to properly determine the rated capacity block to be used. 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.

The following chart indicates the factor to be multiplied by the line pull to obtain the total load on the block.

Angle Factor
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 - -

Sheave Size and Wire Rope Strength

Ratio A Strength Efficiency Compared to Catalogue Strength in % Ratio A Strength Efficiency Compared to Catalogue Strength in %
40 95 8 83
30 93 6 79
20 91 4 75
15 89 2 65
10 86 1 50

Strength Efficiency

Bending wire rope reduces its strength. To account for the effect of bend radius on wire rope strength when selecting a sheave, use the table above.

Ratio B Relative Fatigue Bending Life Ratio B Relative Fatigue Bending Life
30 10 16 2.1
25 6.6 14 1.5
20 3.8 12 1.1
18 2.9 - -
 
Pricing

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