Enforcer 6 Series Kingpinless Casters
Catalog Pages
Colson 6 Series Enforcer Kingpinless Swivel Caster
  • Colson 6 Series Enforcer Kingpinless Swivel Caster with Side Lock Brake
  • Colson 6 Series Enforcer Kingpinless Swivel Caster with Tread Lock Brake
  • Colson 6 Series Enforcer Kingpinless Rigid Caster
  • Colson 6 Series Enforcer Kingpinless Swivel Caster with Hand-Activated Swivel Lock
  • Attractive zinc-plated finish
  • 1/4″ fork leg thickness
  • Single ball hardened raceways
  • 1/2″ hollow axle with grease zerk and lock nut
  • Plastic seal/retainer washer (roller bearing models)
  • 5/16″ swivel steel top plate for durability, rigid top plate 1/4″ steel
  • Grease fittings: wheel bearing and swivel raceway
  • “Colson 45” 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 Grey Tread with Capacity to 675 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.

PERforma Conductive

Colson Performa Conductive Wheel Flat Grey Tread with capacity to 500 poundsPerforma Conductive wheels combine a soft cushion ride with a non-marking tread design. All wheels feature a cushion grey Performa tread bonded to a black Polyolefin wheel core. Performa Conductive wheels have been rigorously tested and approved by an independent lab and meet the requirements of federal specification FF-C-88C. This specification requires an average electrical resistance of less than 250,000 ohms.


Colson Polyolefin Wheel with capacity to 900 poundsDesigned for hard impacts and heavy loads, this wheel is injection molded from an exclusive Colson polyolefin compound. The unique ribbed design adds strength. Very light in weight, yet the impact strength of this wheel is far superior to hard rubber wheels. It offers superior resistance to most oils, chemicals, grease, gasoline, cooking fats and acids. In addition, the wheel is stain resistant, non-marking and provides zero water absorption.


Colson Trans-forma Wheel Flat Grey Tread with capacity to 600 poundsThis quiet rolling, non-marking marvel rejects floor debris while providing a shock absorbing, cushion ride that helps protect your valuable cargo. It’s the perfect lower cost replacement for more expensive TPE and TPR wheels. The Trans-forma wheel is manufactured using co-injection molding on our state of the art equipment that chemically bonds the TPE material to a sturdy polyolefin core. The multi-purpose design is well suited for a variety of applications including (but not limited to): laundry carts, medical equipment, electronic equipment, material handling carts and nursery carts.

trans-forma hd

Colson Trans-forma HD Wheel Flat Grey Tread with capacity to 900 poundsIf you are looking for a lower-cost replacement for polyurethane… look no further. This engineering miracle is non-marking and offers good ergonomic performance. Plus, it does not break down in water/steam, and it does not squeak like polyurethane wheels. Since it is made in the USA, like our other Trans-forma wheels, the lead times are much better than competitive wheels. The multi-purpose design is well suited for a variety of applications including (but not limited to): food processing, poultry processing, dairy carts, laundry carts, and in plant mobility equipment.


Colson Conquest Ergonomic polyurethane wheel with capacities up to 1500 poundsColson’s new Conquest wheel is the ultimate in ergonomic performance. Independent testing proves the Conquest wheel requires 20% LESS force to move than comparative wheels. This reactive polyurethane wheel tread is chemically and mechanically molded onto a lightweight aluminum wheel core. Count on this wheel to glide quietly across even debris covered floors, while maintaining the durability to carry heavy loads (up to 1500 lbs. each).

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.

polyurethane on aluminum core

Colson Moldon Polyurethane on Aluminum Core wheel with capacity to 1500 poundsLight-weight and ultra-durable, this wheel has a very high strength-to-weight ratio and is capable of long service under heavy loads. Maroon color polyurethane is permanently bonded to the aluminum 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 3000 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.


Colson Maxim thermoplastic wheel with capacity up to 1400 poundsColson Maxim Wheels feature an exclusive, ultra-tough thermoplastic compound that resists hard impacts and drop-shocks. The wheel is impervious to most chemicals, solvents, salts, gases, alkalines and steam cleaning and does not absorb water. When compared to other hard tread wheels, Maxim wheels require less force to roll and swivel. It is ideal for many industrial and institutional applications and is NSF listed for the food service industry. The wheel is non-marking.


Colson Endura Solid Elastomer wheel with capacities up to 1200 poundsColson’s exclusive solid elastomer compound delivers greater durability than conventional metal, rubber, plastic, polyurethane and phenolic wheels. Even in continuous operation, these wheels produce extremely low heat build-up making them perfect for tow-line applications (precision ball bearings required). Endura wheels resist most chemicals, oils, greases, petroleum products and solvents. In addition, Endura non-marking wheels offer excellent resistance to chipping, cracking and flat-spotting. Superior impact strength and abrasion resistance further enhance durability.

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.

nylon on aluminum core

Colson Moldon Nylon on Aluminum Core wheel with capacity to 1500 poundsBrown nylon tread is molded in, around and through slots in an aluminum wheel core. This mechanical tread locking system helps prevent tread bond failures under harsh operating conditions found in meat packing and food processing industries. A nylon wheel is Wheel Core recommended for applications requiring a high resistance to water, oils, gasoline, grease and certain salt solutions. Nylon is also resistant to paints and lacquers, cosmetic preparations, detergents, aerosol preparations and animal and vegetable fats.Note:Nylon tread wheels bonded to a thermoplastic wheel core are available, please consult factory for details.


Colson Triumph Ergonomic Polyurethane Wheel with brown crown tread and capacities to 1200 poundsTriumph wheels are a new generation of ergonomically friendly wheels available only from Colson. The wheels include precision ball bearings for maximum rolling ease. Triumph’s polyurethane tread is chemically and mechanically bonded to an aluminum core. Wheels come in various colors and durometers. You can choose crown or round tread designs. These wheels are specially designed for tow-line application. Wheels do not skid or mark floors.

Brake Options

Colson 6 Series Enforcer Kingpinless Swivel Caster with Tread Lock BrakeTread Lock – This adjustable brake can be installed in the field or ordered assembled onto the caster. The toe activated brake features positive engagement via rubber faced plate. Available on all swivel casters except V-Groove models.

Colson 6 Series Enforcer Kingpinless Swivel Caster with Side Lock BrakeSide Lock – This Side Lock brake is designed for Colson 4 and 6 Series Enforcer casters to accommodate a thicker leg. The brake places a positive locking force against the wheel hub to hold heavy loads securely. A larger foot pedal makes the brake easier to operate and provides better foot placement. The brake can be actuated from either end of the pedal for great convenience. Available on all swivel models equipped with roller bearing or one-piece Delrin bearing.

Fork and Wheel Options

Colson 6 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 in Bolt-On or Welded design.

NSF Listed for Food Service Industry – All models except swivel lock, thread guards, forged steel and cast iron core wheels

Thread Guards – Available on many models, in metal and plastic variations

Load Height Option – Optional 9-1/2″ load height (6-1/4″ swivel radius) available for 8″ swivel and rigid casters

Axle/Nut Options
AX2: Solid Axel
NT1: Thick lock nut


Lube Options Fork Wheel
No Grease GRF1 GRW1
Double Grease GRF2 GRW2
300º Continuous GRF3 GRW3
500º Continuous Consult Factory

Bearing Options

Bearing Options
Standard bearings are roller bearings. Optional bearings are available:

Roller Bearing – Metal cage roller bearing (WB29)
Roller Bearing – Metal thrust and retainer washer (WSR1)
Roller Bearing – Sintered iron step washers (WSR2)
Roller Bearing – Sealed metal retainer washer (WSR3)
Torrington Roller Bearing – Torrington-style roller bearing with retainer (WB19)
Delrin Bearing – For standard two-piece bearing, change ninth digit to “1” (Example: 4.06289.921)
Delrin Bearing – One piece with steel thrust washers (WB11)
Precision Ball Bearing – Change eight and ninth digits to “P5” (Example: 6.06289.4P5Note: Performa 6″ to 8″ capacity decreases.
Pedestal Precision Ball Bearing – Change ninth digit to “5” (Example: 6.06289.455)
Bronze – Change ninth digit to “4” (Example: 6.06289.534)

CAD Models & Quotes