Colson 4 Series 1-1/2″ tread width casters offer the benefits of our popular 4 Series forks combined with our 3 Series wheels. The 1-1/2″ tread width provides advantages for unique floor environments and mobility challenges. The 4 Series fork offers a larger top plate, more durable construction, and increased caster capacity compared to the 3 Series. All 4 Series Caster Forks are USA-Made for the highest quality and quickest delivery possible.
- Tread width: 1-1/2″
- Attractive zinc-plated finish
- Full double ball hardened raceways
- 1/2″ hollow axle with grease zerk and lock nut
- Plastic seal/retainer washer (roller bearing models)
- 1/4″ steel top place for durability
- Permanent rivet kingpin with 5/8″ diameter rivet
- 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.
Performa 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 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.
Designed 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 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.
Phenolic 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.
Thermo wheels feature a standard operating temperature range from -70°F (continuous service) to +525°F (intermittent service, +480°F continuous service). These wheels are molded from an exclusive engineered resin compound that offers non-marking floor protection, near zero water absorption, high load capacities and long service life. A special manufacturing process enables the wheels to retain a consistent bearing bore even when exposed to elevated temperatures. Furthermore, Thermo wheels are 100% recyclable, and they are highly resistant to animal fats, vegetable oils and salt solutions. The life expectancy of Thermo wheels is three times longer than high-temp phenolic wheels, and they offer an equal load capacity. Unlike high-temp phenolic wheels, Colson Thermo wheels have no outer skin that can break and absorb water or other fluids.
This 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 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.
Tread 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 3-1/4″ diameter and V-Groove models.
Tech Lock – Constructed of durable, light-weight engineered thermoplastics, this brake is ideally suited for wet or corrosive conditions. The simple toe operation holds heavy loads securely. With an advanced brake pad design, the brake is compatible with a variety of wheel types. The Tech Lock brake provides virtually maintenance-free operation with only two moving parts. The temperature range is -30ºF to +250ºF. Available on all swivel casters except 3-1/4″ diameter, V-Groove, and Swivel Lock models.
A 6″ Rigid Tech Lock Model is available: Specially engineered for rigid caster models only, the contemporary design features thermoplastic construction to resist rust and corrosion. A grip ridge for the mechanical lock fastens the Tech Lock brake to the fork.
Total Lock – With a press of the foot, lock both the wheel and swivel in any position. The low angle pedal design makes foot access easy for convenient operation, and the contemporary design features thermoplastic construction to resist rust and corrosion. Available on 4″, 5″, 6″ and 8″ swivel models except 3-1/4″ diameter and V-Groove models.
Top Lock – Colson 4 Series forks include a special notch for easy installation of Top Lock brakes. The break is cost effective and provides reliable braking under a variety of operating conditions. Available on 4″, 5″, 6″ and 8″ models except V-Groove.
Fork and Wheel Options
Foot 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 90° 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. Available on all swivel casters with standard top plate.
Hand Activated Swivel Lock -Swivel locks quickly convert swivel casters to rigid casters for straight-line tracking. A spring-loaded, hand operated plunger is engaged to fit into slots on the swivel raceway. To engage the lock, simply pull out plunger and turn until spring action inserts plunger in notches on raceway. To disengage the lock, simply pull out the plunger and turn so plunger is not inserted in notches on raceway. Available on all swivel casters in Bolt-On or Welded designs.
NSF Listed for Food Service Industry – All models except swivel lock, thread guards, and cast iron core wheels
DirtBan Swivel Seal – Not available on swivel lock models
Thread Guards – Available on many models, in metal and plastic variations
AX2: Solid Axel
NT1: Thick lock nut
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)
Delrin Bearing – For standard two-piece bearing, change ninth digit to “1” (Example: 4.06109.921)
Pedestal Precision Ball Bearing – Change ninth digit to “5” (Example: 4.06109.4E5)
Bronze – Change ninth digit to “4” (Example: 4.06109.534)