product
mouseover to enlarge
125 mm Aluminum Footblock 125 mm Aluminum Footblock 125 mm Aluminum Footblock
click thumbnail to select

125 mm Black Magic

125 mm Aluminum Footblock

Part No. 3017
$661.70$535.72  Limited Quantities In Stock
Sheave Ø (mm)125 mm
Sheave Ø (in)5 in
Maximum line Ø (mm)19 mm
Maximum line Ø (in) 3/4 in
Maximum working load (kg)4990 kg
Maximum working load (lb)11000 lb

Carrying some of the highest loads imposed by running rigging, these strong, lightweight blocks feature Torlon® roller bearings housed in a center cage. Rollers stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion. Blocks are easily disassembled with a single hex wrench.

Either metric or imperial flathead fasteners may be used for mounting and are not exposed.

Torlon is a registered trademark of Solvay Advanced Polymers.

Sheave Ø (mm)125 mm
Sheave Ø (in)5 in
Length (mm)176 mm
Length (in)6 15/16 in
Height (mm)43 mm
Height (in)1 11/16 in
Weight (g)1012 g
Weight (oz)35.7 oz
Maximum line Ø (mm)19 mm
Maximum line Ø (in) 3/4 in
Maximum working load (kg)4990 kg
Maximum working load (lb)11000 lb
Breaking load (kg)9977 kg
Breaking load (lb)22000 lb
Number of fasteners
Fasteners (mm)12 FH mm
Fasteners (in)1/2 FH in
A (mm)14 mm
A (in)17/32 in
B (mm)50 mm
B (in)1 25/32 in
C (mm)113 mm
C (in)4 7/16 in
D (mm)35 mm
D (in)1 11/32 in
E (mm)125 mm
E (in)4 29/32 in
F (mm)176 mm
F (in)6 29/32 in
G (mm)23 mm
G (in)29/32 in
Manual: 4546.pdf (open/save)
DWG: 3017.dwg (open/save)
DXF: 3017.dxf (open/save)
IGS: 3017.igs (open/save)
EPS: 3017.eps (open/save)
High-res JPG: 3017.jpg (open/save)

DO NOT use Harken Equipment for Human suspension.

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK