Staging & Structures

Head Block

Model
HB16
Code
GW-MJTRNF
Data status
Level 1 / 5
AI-parsed

❋ Specs

11
Load Capacity Lbs
load_capacity_lbs
4000lbs
1
Load capacity
load_capacity_kg
1814kg
1
Sheave Diameter
sheave_diameter
16in
1
Grooves
grooves
6 or 8
1
Wire Rope Diameter
wire_rope_diameter
1/4" or 3/8"in
1
Sheave Material
sheave_material
Nylatron or steel (turned)
1
Bearings
bearings
ball bearings
1
Handline Groove
handline_groove
3/4" centered (1" optional)in
1
Design Factor
design_factor
8:1
1
Standard
standard
ANSI E1.4-1
1
Model Variants
model_variants
HB12 (3000 lbs, 12" sheave), HB16 (4000 lbs, 16" sheave)
1

Every field carries its own trust-tier: core data is confirmed by the manufacturer, peripheral data — by AI (with a source link). Safety-critical parameters (load ratings) are never published below vendor-claimed — a liability requirement.

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