Enforcer 7 Series Kingpinless Casters
Catalog Pages
7 Series Enforcer Kingpinless Swivel Caster
  • 7 Series Enforcer Kingpinless Rigid Caster
  • 7 Series Enforcer Kingpinless Swivel Caster with Hand-Activated Swivel Lock
  • 7 Series Enforcer Kingpinless Swivel Caster with Tread Lock Brake
  • Attractive zinc-plated finish
  • Single ball hardened swivel raceway construction
  • 3/4″ solid axle with nut
  • Swivel fork: 3/8″ steel top plate with 3/8″ x 2-1/2″ legs
  • Rigid fork: 5/16″ steel top plate with 5/16″ x 3-1/2″ legs
  • Formed fork legs feature robotic welding inside and out for consistent quality
  • Recessed zerk grease fitting on swivel raceway to prevent damage, grease fitting on wheel bearing for easy maintenance
  • Multi-temp grease lubricates in extreme hot and cold temperatures


Please note: Not all possible caster configurations may be modeled. If the catalog option you are looking for is not modeled, please contact us for engineering assistance.


Colson Performa Wheel Flat Black Tread with Capacity to 1700 poundsPerforma wheels offer the advantages of both hard and soft tread materials in a single wheel. Like a hard tread wheel, Performa rolls easily and is very durable. Like a soft tread wheel, it rolls quietly, protects floors and resists impacts with a cushion ride. It also features maximum weather-ability, low temperature flexibility, resistance to chemicals, water and steam, and rejects floor debris such as metal shavings. Non-marking thermoplastic elastomer tread is permanently bonded to a ribbed polyolefin wheel core.

Rubber on Cast Iron Core

Colson Moldon Rubber on Cast Iron Core wheel with capacity to 1140 poundsMoldon rubber is bonded to a cast iron core. These wheels are quiet in operation and absorb shock and vibration. They help prolong equipment life and protect cargo.

Polyurethane HI-TECH

Moldon Polyurethane HI-TECH WheelPolyurethane tread is bonded to a polyolefin core. Tread is molded in, around and through a ribbed extension of the core to prevent debonding. Standard colors are maroon tread on grey core. This is a very attractive, all purpose wheel. Resistant to most chemicals, solvents, water and acids.

polyurethane on cast iron core

Colson Moldon Polyurethane on Cast Iron Core wheel with capacity to 3500 poundsThis is a strong, ultra-durable wheel. It has a very high strength-to-weight ratio and is capable of long service under heavy loads. Maroon color polyurethane is bonded to the cast iron core.


Colson Phenolic wheel with capacity up to 3500 poundsPhenolic resin wheels are filled with macerated fabric. This wheel provides quieter operation than steel or aluminum, provides superior floor protection, and resists hard impacts, most chemicals and steam. The standard color is black.

 forged steel

Colson Forged Steel wheel with capacities up to 2500 poundsThis wheel is for exceptionally heavy duty service where floor protection is not a factor. Forged steel wheels have almost unbreakable construction, great wear resistance and take shock impacts very well in power drawn service. They should not be used if noise is of major concern or if loads are fragile.

Cast Iron

Colson Cast Iron wheel with capacity up to 600 poundsThis wheel should be specified when excessive load weights are involved and floor protection is not a factor. Its high strength withstands sharp impacts. Cast Iron wheels should not be used if noise is of major concern or if loads are fragile.


Colson V-Groove wheels with capacities up to 6000 poundsV-Groove wheels are for track or floor operation on inverted angle iron track in production lines. They are also used with hand or conveyor trucks. V-Groove surface and face are machine finished. These wheels handle loads from 800 to 6,000 lbs. per wheel. Designed for floor operation, or for track mounted flush or on top of floors, the wheel gives greater flexibility and better use of available floor space. Curves and switches may be used in track operation. Wheels are cast with reinforced section at maximum stress points. The type of track layout and casters are dependent upon floor conditions, area, distance and load.

Commander HD

Colson Commander HD Nylon Wheel with capacity to 7200 poundsThe Commander HD wheel is perfected for superior performance under heavy loads (2,000-7,200 lbs. each) and abusive impacts. Critical applications for this wheel include: die carts, engine hoists, ground support equipment and much more. The unique and durable Nylatron® wheel material provides floor protection where steel, iron or phenolic wheels do not. The wheel’s tread resists moisture and most chemicals, making it suitable for corrosive environments. The slightly crowned tread profile provides better mobility than flat tread wheels.

Brake Options

7 Series Enforcer Kingpinless Swivel Caster with Hand-Activated Swivel LockTread Lock – This toe activated Tread Lock brake features positive engagement via a single rubber-faced plate. It is available on all casters, except for V-Groove models.

Fork and Wheel Options

7 Series Enforcer Kingpinless Swivel Caster with Hand-Activated Swivel LockHand-Activated Swivel Lock – No more back strain from bending down to activate a swivel lock. When the foot pedal is in the “up” position, a stainless steel spring forces a pin into one of the four slots on the swivel fork. This effectively locks the swivel in one of four positions at 90º intervals. To disengage the lock, simply press down on the foot pedal for free swiveling action. It’s that easy! With this innovative product, you can quickly and easily convert swivel casters to rigid casters for straight-line tracking. When you need greater maneuverability, you can quickly convert from the rigid position back to full swivel. Quick. Easy. Less stress and strain. The Colson Ergonomic Advantage. Available on all swivel casters.

NSF Listed for Food Service Industry – Some models are NSF approved; consult factory for more details.

Nut Options – NT1: Thick lock nut

Load Height Options:

Wheel Diameter Load Height Swivel Radius Specify:
6″ 8″ 4-7/8″ LH8.0
8″ 10-1/2″ 6-5/8″ LH10.5
10″ 12-1/2″ 8-1/8″ LH12.5
12″ 15-1/2″ 10-1/8″ LH15.5


Bearing Options

Standard bearings are roller bearings. Optional bearings are available:

Delrin Bearing – For standard two-piece bearing, change ninth digit to “1” (Example: 7.06689.361)

CAD Models & Quotes