Direct Drive Wheel Assemblies

These roller bearing wheel assemblies are for use where it is desired to couple the drive or squaring shaft to the axle without a gear reduction at the wheels. The cartridge type housing should be installed in the truck members with a small amount of side play so that bearings can align themselves under operating conditions.

Wheels
Cast steel, double flanged, with treads finished for the runway rail specified.
Wheel Bearings
Standard heavy duty quill roller bearings with inner races and a large overload capacity.
Wheel Bearing Housings
Outboard cartridge type with a flat surface for a keeper plate to bear against, and a machined mounting groove.
Axles
Finished all over, pressed and keyed in finished wheel bore. Long Shaft extension on driving wheel axle is fitted with a standard keyway for coupling direct to a squaring shaft.
Wheel Gear
Steel with standard pitch cut teeth, pressed and keyed on finished wheel hub.
Lubrication
All bearings are provided with grease fittings for pressure lubrication.

We have an engineering staff that can design assemblies which are not listed, Please solicit your inquiries to sales@downscrane.com.

ITEM
NO.
TREAD
DIA.
(IN)
TYPE CAPACITY
PER WHEEL
(LBS)
FOR MAX.
A.S.C.E
RAIL
(# RAIL)
WGT.
(LBS)
DIMENSIONS
(INCHES)
A B C E F H J L N P R U
3735 10-1/2 SHORT SHAFT 12,000 40 110 10-1/2 11-3/4 2-3/4 5-7/16 9-1/4 4-5/8 5 13/16
3736 10-1/2 LONG SHAFT 12,000 40 120 10-1/2 11-3/4 2-3/4 5-7/16 9-1/4 4-5/8 10 5-3/8 1-15/16 5 1/2 13/16
3741 12 SHORT SHAFT 12,500 40 131 12 13-1/4 2-3/4 5-7/16 9-1/4 4-5/8 5 13/16
3742 12 LONG SHAFT 12,500 40 205 12 13-1/4 2-3/4 5-7/16 9-1/4 4-5/8 10 5-3/8 1-15/16 5 1/2 13/16
3743 12 SHORT SHAFT 15,000 60 158 12 13-1/2 3-1/8 6-3/16 10 5 5 13/16
3744 12 LONG SHAFT 15,000 60 233 12 13-1/2 3-1/8 6-3/16 10 5 10-1/2 5-1/2 1-15/16 5 1/2 13/16
3749 15 SHORT SHAFT 17,500 50 177 15 16-1/2 3 5-15/16 9-3/4 4-7/8 5 13/16
3750 15 LONG SHAFT 17,500 50 284 15 16-1/2 3 5-15/16 9-3/4 4-7/8 10-3/8 5-1/2 1-15/16 5 1/2 13/16
3753 15 SHORT SHAFT 20,000 70 212 15 16-1/2 3-3/16 6-5/16 10-1/8 5-1/16 5 13/16
3754 15 LONG SHAFT 20,000 70 320 15 16-1/2 3-3/16 6-5/16 10-1/8 5-1/16 11 5-15/16 1-15/16 5 1/2 13/16
3757 18 SHORT SHAFT 30,000 70 344 18 19-1/2 3-3/16 6-5/16 10-1/8 5-1/16 5 13/16
3758 18 LONG SHAFT 30,000 70 495 18 19-1/2 3-3/16 6-5/16 10-1/8 5-1/16 11-1/4 6-3/8 2-7/16 5 5/8 13/16
3765 21 SHORT SHAFT 50,000 80 443 21 22-3/4 3-5/8 7-1/4 11-1/8 5-9/16 5-3/4 13/16
3766 21 LONG SHAFT 50,000 80 837 21 22-3/4 3-5/8 7-1/4 11-1/8 5-9/16 12-1/2 6-15/16 2-11/16 5-3/4 5/8 13/16
3773 24 SHORT SHAFT 70,000 100 596 24 25-3/4 3-3/4 7-1/2 12 6 6-1/2 15/16
3774 24 LONG SHAFT 70,000 100 971 24 25-3/4 3-3/4 7-1/2 12 6 13 7 2-15/16 6-1/2 3/4 15/16
Dimensions given are in round numbers. We reserve the right to make changes to our designs at any time that may not be reflected in the table. Please ask for a Certified Dimension Print for current dimensions.

The sizes and capacities listed above are a reference to the most common sizes of this equipment. If you have a different capacity, irregular size or some other need that must be met by our equipment, we will be happy to design one of these pieces of equipment to meet your special needs while also meeting or exceeding our interpretation of the appropriate ANSI / ASME. standards.

Improper use of lifting equipment may cause serious injury or death.
Only a Qualified Operator, as defined by the ASME B30.20 Standards, shall operate equipment.
Read and understand General Warnings before operating equipment.

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Designers and manufactures of "Below the Hook" material handling equipment.

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