6 Series Maintenance-Free Casters
Catalog Pages
Colson 6 Series Evolution Precision Raceway Maintenance-Free Swivel Caster
  • Colson 6 Series Evolution Precision Raceway Maintenance-Free Rigid Caster

Evolution casters from Colson are the industry’s toughest maintenance-free caster for harsh towing applications. Automotive, tire manufacturers and anyone who needs a caster that can hold up in dynamic towing applications will be especially interested in this product. The precision radial bearing is large at 3-1/2″ in diameter and is sealed on both sides for an exceptionally smooth swivel. This fork makes up part of an ergonomically friendly caster that confidently handles shock loads, easily starts and stops, effortlessly moves over thresholds, and reliably negotiates uneven surfaces.

  • Yellow zinc dichromatic finish
  • Designed for dynamic towing applications
  • Maintenance-free, precision swivel raceway
  • 5/16″ steel legs, formed to increase strength and welded on the inside and outside of yoke base
  • Fork legs 5/16″ thick 2-1/2″ wide
  • 1/2″ hollow axle with grease zerk fitting on roller bearing models
  • Excellent for automotive, tire manufacturing, and aviation industries


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.

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.


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.

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.


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). Available with Precision Ball Bearing only.

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.

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.


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.



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. Available with Precision Ball Bearing only.


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. Available with Precision Ball Bearing only.

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: 6.08579.451.2)
Delrin Bearing – One piece with steel thrust washers (WB11)
Precision Ball Bearing – Change eight and ninth digits to “P5” (Example: 6.08579.8P5Recommended for tow-line applications.
Pedestal Precision Ball Bearing – Change ninth digit to “5” (Example: 6.08579.555)
Bronze – Change ninth digit to “4” (Example: 6.08579.534)

CAD Models & Quotes