Blocks



Blocks

Overhaul Balls
Crane Blocks
Wire Rope Snatch Blocks Wire Rope Sheaves Wedge Sockets
Oilfield Blocks
Swivels
Manila Rope Blocks

Johnson Overhaul
Balls supply the
downfall weight
necessary to
counter bearing
friction and winchto-boom-tip line
weight. Because
these units must
meet a wide
range of field
applications, we
offer an equally
wide range of
unit sizes. It is,
in fact, one of the
widest ranges
available—over
240 models, 35
through 1150
pounds; 3 through
30 tons W.L.L.
Non-swivel balls
are also available.

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OVERHAUL BALLS

STANDARD FEATURES
3 through 30 tons
35 through 1150 pounds
• 4 to 1 design factor
Heavy duty J-Latch standard

OPTIONAL FEATURES
• High capacity, custom engineered
balls available upon request

Johnson offers a
host of advantages
in this product line.
Beginning with 100
standard models,
you are assured of
selections that fit your
every need. The lowest
weight to capacity
ratios, the quickest
rigging and the easiest
maintenance are a few
additional benefits that
prove once again that
Johnson Blocks are
consistent in quality
and value.

FIXED BAIL CONSTRUCTION AND MARINE RIGGING BLOCKS

STANDARD FEATURES
3 through 30 tons
35 through 1150 pounds
• 4 to 1 design factor
Heavy duty J-Latch standard

OPTIONAL FEATURES
• High capacity, custom engineered
balls available upon request

SHORTY “J” CRANE BLOCKS

STANDARD FEATURES
• 3 thru 350 ton capacities
• 4 to 1 design factor
• 1 through 8 sheaves
• 10 through 30 inch sheave diameters
• Reeving guides, all models
• Bronze bushed and roller bearing sheaves
• Direct-channel sheave bearing lubrication
through center pin
• Flame hardened grooves on sheave sizes 16
through 30 inch diameters.
• Dual action (swing/swivel) roller thrust
bearing hooks
• Forged steel hooks – 3 through 30 tons
• Total disassembly capability

OPTIONAL FEATURES
• Forged steel hooks – 35 through 300 tons
• Cast alloy steel duplex hooks with bar latch
25 through 1,750 tons
• Cast alloy steel quad hooks
• Forged steel duplex hooks
• Anti-rotation locking devices, all models
• Swivel safety anchor shackles, all models
• Sheave shrouds, all models
• Detachable cast iron and steel cheek weights, all models
• Pull test and certication, radiograph, magnetic particle, and
other non-destructive testing to specication designated by
customer

QUICK REEVE Mobile Crane Block

SHORTY “J” CRANE BLOCKS

Shorty “J” is one of
today’s most popular
crane blocks, and for
a good reason. The
J-Block can be used with
all types of mobile cranes,
truck cranes, overhead
cranes, hydraulic and cable
cranes. Johnson Quick Reeve
crane blocks are also
available.

QUICK REEVE Mobile Crane Block

STANDARD FEATURES
• Quick release, zinc plated, rope retention pin meets
OSHA requirements for rope retention. Cannot be
completely removed from block to avoid pin loss.
• Johnson J-Latch™ heavy duty, steel, lockable,
spring loaded latch meets OSHA personnel lifting
requirements.
• The Johnson J-Latch™ provides a fast hook
deformation inspection point.
• Available tonnage capacities from 5-300 tons. Larger
capacities available upon request.
• Quick Reeve™ upright design rests on its own hook
for a stable base while reeving.
• No bulky, drop down, trap door to handle or
damage.
• Wire rope end tting will pass through block without
removal from wire rope.

235 standard models
of single and double
sheave snatch blocks
are offered. Capacities
range from 2 through
30 metric tons; sheave
diameters from 3 through
24 inches. Only top grade
materials are used for
each component.


Johnson Snatch
Blocks have the
convenient side
opening feature.
This is true even of
our heavy duty top
dead-end models,
and makes it easy to
reeve the block without
removing any fittings from
the end of the wire rope.
Other features include
choice of swivel hook, shackle,
eye fittings, or Tailboard Blocks
(which have no fittings at all).

SNATCH BLOCKS

Snatch-Blocks

WIRE ROPE SHEAVES

STANDARD FEATURES
• 3 through 108 inch sheave diameters
• 1/4 through 3 inch wire rope sizes
• 4 to 1 design factor
• Cast iron, ductile iron, cast steel, ForgeFab
steel types

OPTIONAL FEATURES
• Custom designs to customer shaft, bearing
mounting, hub, sheave O.D. or wire rope size requirement
• Electroplate inorganic zinc compound and
other corrosion resistant coatings available
• Hub-located grease fittings
• Modifications as required to API and other applicable
industry standards
• Special shafts, furnished for any sheave listed
• AISE No. 6 specifications
• Cold weather properties

3” to 108”, and over 250
standard models, Johnson
Wire Rope Sheaves are
industry proven with
over 100,000 in
use. Cost efficient
custom designs
are available
with no upfront
tooling or
pattern charges
and no premium
for small order
quantities.
16” to 108” O.D.
sheaves have flamehardened, precision
grooves for slow,
even wear and long
rope life. (Less
than 16” O.D. flamehardened upon request.)
The integrity of Johnson’s single
disc forged steel construction
provides a sheave with
superior strength.

Open Wedge Sockets
combine positive attachment
with optimum versatility.
Easy-to-change Johnson
Wedge Sockets are a high
strength cast alloy steel with
charpy value of 25 lbs/ft. at
-4 F. Each socket accepts
at least two different ductile
iron wedges. This allows the
socket to be used with more
than one rope size. Together,
wedge and body act as a vise
which grips the wire rope
and locks it into place. The
headed attachment pin is
standard and has a charpy
value of 25 lbs/ft. at -4 F.

OPEN WEDGE SOCKETS

Open-Wedge-Sockets

OILFIELD BLOCKS

Johnson has been
producing oilfield
equipment for over five
decades. Because of this
expertise in sheaves and
blocks, as well as an
on-site heat treat facility,
Johnson has become a
respected manufacturer for
the petroleum industry.
We know the needs
and we know how
to fulfill them with
quality lifting devices.
High capacity,
custom engineered
oilfield blocks
available upon
request.

Standard designs are
available in a wide
variety of styles.
Engineered for long
life at a reasonable
cost. Features
include roller thrust
bearings, recessed
grease fittings
and hooks of drop
forged steel. All
swivels have a
4 to 1 design
factor. High
capacity, custom
engineered swivels
available upon
request. Heavy
duty J-Latch
standard on hook
models.

SWIVELS

swivels
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For detailed information about our Blocks, go to pages 137-144 in the Full Catalog