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The Kappa is a swivel caster with directional lock designed for demanding industrial applications including aerospace industry and airport equipment, AMR systems, automotive OEM, ceramic and glass manufacturers, production and platform trolleys, and heavy AGV systems. The caster features a rectangular plate fitting that provides secure mounting to equipment and machinery. The housing is constructed from cast iron or iron forged heavy-duty material, incorporating two ball races that are either reinforced or stainless to ensure reliable swivel operation and extended service life. The wheel assembly consists of a 4.92-inch diameter wheel with a casted polyurethane tread material mounted on an aluminum body, supported by precision ball bearings that deliver smooth rotation and minimal friction. The overall height of the caster measures 6.69 inches, making it suitable for integration into various equipment configurations. The load capacity specifications indicate a static load rating of 2,204.62 pounds, while the dynamic load capacity reaches 881.85 pounds at speeds up to 3.73 miles per hour or 1,102.31 pounds at speeds up to 2.49 miles per hour, depending on operational requirements and speed conditions. This combination of robust construction, precision bearings, and substantial load ratings makes the Kappa caster an ideal solution for heavy-duty industrial and commercial applications requiring reliable directional control and exceptional durability.
Roll performance
Movement noise
Attrition
Corrosion resistance
Article numbers
Article Number
9681ITP125P63 CL67
EAN
4031582315578
S4 Material Number
990830590
Core attributes
Type
Swivel caster with directional lock
Overall width
4.33 in
Load capacity at 4 km/h
1102.31 lb
Load capacity at 6 km/h
881.85 lb
Load capacity Static
2204.62 lb
Overall Height
6.69 in
Temperature range (Maximum)
140 °F
Temperature range (Minimum)
14 °F
Overall weight
8.6 lb
Product name
Kappa
Standard
EN12532 - Transport Equipment
Electric conductive
Stainless
Fitting
Fitting type
Rectangular plate
Plate hole diameter
0.43 in
Plate hole length (Maximum)
3.15 in
Plate hole length (Minimum)
2.95 in
Plate hole width (Maximum)
4.13 in
Plate hole width (Minimum)
2.95 in
Plate length
5.31 in
Plate width
4.33 in
Housing
Housing Color
Blue passivated
Fork shape
Broad, reinforced
Housing Material
Cast iron, or iron forged, heavy
Swivel bearing
Two ball races, reinforced or stainless
Dome diameter
4.37 in
Swivel interference
8.86 in
Offset
1.89 in
Swivel radius
4.43 in
Wheel
Hardness of tread (A)
92 Shore A
Hardness of tread (D)
42 Shore D
Body material
Aluminum
Tread material
Polyurethane, casted
Tread width
1.97 in
Diameter
4.92 in
Body width
1.97 in
Threadguards
Without threadguard
Axle
Screwed with nut
Bearing
Precision ball bearing
Wheel color
Honey yellow (RAL1005)
special-features-image
Special Features
Non-hazardous materials
Complies with RoHS and REACH regulations. Does not contain polycyclic aromatic hydrocarbons or chromium (VI)
Tested quality
Tested in our own laboratory for compliance with European standards
Solid housing
Made of pressed steel, zinc plated
Resource-conserving part replacement
Threaded axles allow effortless wheel change
Uninterrupted use
Swivel bearing with dust ring for continuous, uninterrupted movement
Strong construction
Housing made of heavy steel for high load capacity
Reliable traction
Traction-optimised treads for secure grip on wet and slippery floors
Secured mounting plate
Mounting plate secured with nut and bolt kingpin
Solid construction
Solid steel plate for maximum load capacity
Non-marking movement
Wheels with reduced abrasion and minimal cleaning requirements
Easy steering
Swivel head with double ball bearings
Ergonomically friendly use
Wheels with optimised rolling resistance to reduce user effort
Optimised directional lock
Directional lock adjustable to 2x180° or 4x90°
Quick maintenance
Swivel bearings lubricated with long-life grease and fitted with grease nipple for easy maintenance
Long-lasting surfaces
High-quality galvanising for long service life under harsh conditions
Extra heavy duty construction
Welded solid steel construction for maximum load capacity
Heavy duty construction
Extra heavy steel housing for high load capacity
Hardened double ball raceways
Two hardened double ball raceways guarantee exceptional stability
Flexible lock function
Use of two independent actuation systems in one castor
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Accessories

Accessory
Directional lock
Directional lock 9651/9681

The Directional lock is an accessory designed to enhance the functionality and control of caster systems in industrial and commercial applications. This component weighs 0.62 pounds and provides operators with the ability to restrict caster movement to a single direction, preventing unwanted lateral or rotational motion during operation. The directional lock mechanism is engineered to maintain precise directional control while allowing smooth forward and backward movement, making it ideal for applications requiring stable, predictable caster behavior. Installation of this accessory integrates seamlessly with standard caster assemblies, offering a practical solution for equipment that demands enhanced maneuverability control and operational safety in demanding environments.

Accessory
Foot protection
Foot Protection Ø125

The Foot protection accessory for casters is a specialized component designed to enhance the functionality and durability of caster systems in industrial and commercial applications. Weighing 1.19 pounds, this lightweight yet robust accessory provides essential protection to the foot or mounting base of caster assemblies, preventing damage from impact, abrasion, and environmental exposure. The foot protection is engineered to withstand demanding operational conditions while maintaining compatibility with standard caster configurations, making it an ideal solution for facilities requiring extended equipment lifespan and reduced maintenance costs.

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Matching Products

Variants
Swivel caster 4.92 in
Swivel caster 4.92 in
Kappa
9680ITP125P63 CL67

The Kappa swivel caster is engineered for demanding industrial applications requiring robust mobility solutions with precision performance characteristics. This unit features a rectangular plate fitting designed for secure mounting on production equipment, trolleys, and automated systems. The housing is constructed from cast iron or iron forged heavy-duty material, providing exceptional structural integrity and durability in high-stress environments. The swivel bearing incorporates two ball races that are either reinforced or stainless, ensuring smooth rotational movement and extended operational life. The wheel assembly measures 4.92 inches in diameter and is constructed from casted polyurethane tread material, offering excellent grip and wear resistance across diverse floor surfaces. The wheel is supported by a precision ball bearing that delivers reliable performance under continuous operation. The overall height of the caster is 6.69 inches, accommodating standard equipment configurations. The load capacity specifications are as follows: the static load capacity reaches 2204.62 pounds, while the dynamic load capacity is 881.85 pounds at 3.73 miles per hour and 1102.31 pounds at 2.49 miles per hour, providing flexibility for various operational speeds and load requirements. The Kappa swivel caster is ideally suited for aerospace industry applications, airport equipment, AMR systems, automotive OEM manufacturing, ceramic and glass production facilities, production and platform trolleys, and heavy AGV systems where reliability and performance are critical operational requirements.

4.92 in
6.69 in
1102 lb
4.92 in
6.69 in
1102 lb
Variants
Fixed caster 4.92 in
Fixed caster 4.92 in
Kappa
9688ITP125P63 CL67

The Kappa is a fixed caster designed for demanding industrial applications requiring reliable mobility and stability. The caster features a rectangular plate fitting that enables secure mounting to equipment and platforms. The housing is constructed from cast iron or iron forged material, heavy-duty grade, providing exceptional durability and structural integrity for sustained operational demands. The wheel assembly incorporates a 4.92-inch diameter wheel with a polyurethane casted tread material, ensuring excellent grip and floor protection, while precision ball bearings deliver smooth rotation and extended service life. The overall height of the caster measures 6.69 inches, accommodating standard platform and trolley configurations. The Kappa supports a static load capacity of 2,204.62 pounds, making it suitable for heavy-duty applications. Dynamic load capacity specifications are 881.85 pounds at 3.73 miles per hour and 1,102.31 pounds at 2.49 miles per hour, allowing for flexible deployment across varying operational speeds. This fixed caster is engineered for use in aerospace industry and airport equipment, AMR systems, automotive OEM applications, ceramic and glass manufacturing facilities, production and platform trolleys, and heavy AGV systems, where dependable performance and load-bearing capability are essential requirements.

4.92 in
6.69 in
1102 lb
4.92 in
6.69 in
1102 lb
Variants
Swivel caster with total lock, head end of caster 4.92 in
Swivel caster with total lock, head end of caster 4.92 in
Kappa
9682ITP125P63 CL67

The Kappa is a swivel caster with total lock, head end of caster, designed for demanding industrial applications requiring reliable mobility and secure positioning. This unit features a rectangular plate fitting that provides secure attachment to equipment and platforms. The housing is constructed from cast iron or iron forged, heavy-duty material, incorporating two ball races, reinforced or stainless, within the swivel bearing assembly to ensure smooth rotation and extended service life. The wheel measures 4.92 inches in diameter and is equipped with a precision ball bearing for optimal performance and durability. The wheel tread is manufactured from polyurethane, casted, offering excellent wear resistance and floor protection, while the wheel body is constructed from aluminum to minimize weight without compromising structural integrity. The overall height of the caster is 6.69 inches, making it suitable for integration into various equipment configurations. The load capacity specifications are as follows: the static load capacity is rated at 2204.62 pounds, while the dynamic load capacity varies based on operational speed, with a capacity of 881.85 pounds at 3.73 miles per hour and 1102.31 pounds at 2.49 miles per hour. The Kappa caster is engineered for use in aerospace industry and airport equipment, AMR systems, automotive OEM applications, ceramic and glass manufacturing, production and platform trolleys, and heavy AGV systems, where precision, reliability, and robust performance are essential requirements.

4.92 in
6.69 in
1102 lb
4.92 in
6.69 in
1102 lb