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2-125 Series Kingpinless™ Casters

Made in USA

Heavy Duty Kingpinless™ Dual Wheel Casters

2-125-UIT-1250-S-SL
2-125-UIT-1250-S-SL
Top Plates
Standard Swivel Top Plate
Standard Swivel Top Plate
Optional LLST/LLRT
Optional LLST/LLRT

RWM's 2-125 Series Kingpinless™ Dual Wheel Casters feature all of the benefits of our patented Kingpinless™ raceway and offer twice the capacity load.

Our 2-125 Series Casters are proudly made in the USA! Log in below to download CAD drawings of this caster.

Dual wheel rigid casters top plates utilize a larger surface area on many sizes to accommodate the width of the wheels and leg spacing required. These casters will utilize special top plates combining the adapter plate and mounting plate together in one plasma cut component which look like this (DOWNLOAD). Dimensions stated as top plate size on these pages are the general outside dimensions of the standard plate when these tabs are not necessary such as on small sizes. Please contact the factory for specifics or if any questions in regards to the items you are looking at.
Features
Raceway Design: Patented Kingpinless™ single ball bearing precision machined raceway hardened to 53 Rockwell C. minimum. 7" diameter raceway with 3/4" diameter ball bearings.
Capacity: 40,000 lbs.
Axle: 1-1/4" bolt with rotation prevent lug on leg and slotted nut adjustment
Finish: Laguna Blue powder coat
Wheels: Wheels are either 4", 5" or 6" wide depending upon diameter and wheel type. Roller bearing wheels are equipped with a bearing which rotates on hardened and ground spanners. Tapered bearing wheels have a 1-1/4" I.D. tapered bearing which rotate directly on a 1- 1/4" axle. All wheels have lubrication fittings.
Mounting Plate Size: 8-1/2" x 8-1/2" x 1/2"
Bolt Hole Spacing: 7" x 7"
Mounting Bolt Diameter: 5/8"
Leg Thickness: 1/2" thick including the center leg
Options
DSL: Demountable Swivel Lock - When ordering the Demountable Swivel Lock (DSL),
you must also order the Notched Yoke (NY).
HDSL: Heavy-Duty Threaded Swivel Lock
HT: High Temperature Lubrication
LT: Low Temperature Lubrication
NY: Notched Yoke Base
PCWB: Poly Cam Wheel Brake
SL: Swivel Lock
SR: Sealed Swivel Raceway
WS: Wheel Seals
ZP: Zinc Plated
FG: Foot Guard
HTP: High Temperature Paint
LSL:L-Type Swivel Lock
VSL:Vertical Swivel Lock
SWP:Sweeper Brush
Benefits of Kingpinless™ Raceway
Benefits of Kingpinless™ RacewayOur patented offset precision-machined raceway exerts radial force evenly where there is full contact between the ball bearing and the raceway. RWM's unique design adds more mass at key points. This, plus more thorough heat treatment, provides additional strength and combats brinelling into the core material.

The Result:
  • No direct "hammering" forces on the intersections of the raceways
  • Vastly reduced raceway wear
  • Elimination of the "pull apart" forces of stress in the swivel section
  • Smoother swiveling action
  • High maneuverability
  • Longer service life
  • Less maintenance
  • Extra impact resistance
  • High radial force absorption
Optional Mounting Plates
Optional Top Plate Number Mounting Plate Bolt Hole Spacing Bolt Size
LLST 8-1/2" x 11" 7" x 9-3/4" 5/8"
LLRT 8-1/2" x 11" 7" x 9-3/4" 5/8"
Applications
Dual wheel casters offer high weight capacities with minimal overall heights, better load distribution, floor protection and mobility than single wheel casters. This is a result of spreading the weight over a wider floor area while offering wheel differential action, resulting in less friction between the wheels and the floor, requiring less effort for the caster to swivel. Dual wheel casters are ideal for tow lines, shock load applications and abusive conditions, production line dollies and trucks used in various industries including but not limited to boat and ship molding and building, automotive, aerospace, metal fabricating, metal forging, heavy machinery and equipment, military equipment, mobile homes, etc. tractor pulled trailers, extreme duty platform trucks and material handling carts, air cargo and ground support equipment, storage tanks, gantries and heavy duty processing equipment, coliseum and gymnasium equipment, shipping / receiving carts, warehousing and freight terminal dollies and carts, and other extra heavy duty applications.
Specifications
spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart
8" 4" Cast Iron 8000 11-1/2" 2-125-CIR-0840-S 2-125-CIT-0840-S 2-1/8" 70
8" 4" Forged Steel 20000 11-1/2" 2-125-FSR-0840-S   2-1/8" 86
8" 4" Forged Steel-HD 40000 11-1/2"   2-125-FST-0840-S 2-1/8" 86
8" 4" Urethane on Iron 7000 11-1/2" 2-125-UIR-0840-S 2-125-UIT-0840-S 2-1/8" 62
10" 4" Cast Iron 10000 13-1/2" 2-125-CIR-1040-S 2-125-CIT-1040-S 2-1/2" 90
10" 4" Forged Steel 20000 13-1/2" 2-125-FSR-1040-S   2-1/2" 100
10" 4" Forged Steel-HD 40000 13-1/2"   2-125-FST-1040-S 2-1/2" 100
10" 4" Ultra Thick Urethane 9000 13-1/2" 2-125-UTR-1040-S 2-125-UTT-1040-S 2-1/2" 95
10" 4" Urethane on Iron 8400 13-1/2" 2-125-UIR-1040-S 2-125-UIT-1040-S 2-1/2" 75
10" 5" Cast Iron 12000 13-1/2" 2-125-CIR-1050-S 2-125-CIT-1050-S 2-1/2" 95
10" 5" Urethane on Iron 10000 13-1/2" 2-125-UIR-1050-S 2-125-UIT-1050-S 2-1/2" 115
12" 4" Ultra Thick Urethane 10600 15-1/2" 2-125-UTR-1240-S 2-125-UTT-1240-S 2-7/8" 90
12" 4" Urethane on Iron 9600 15-1/2" 2-125-UIR-1240-S 2-125-UIT-1240-S 2-7/8" 78
12" 5" Ultra Thick Urethane 13000 15-1/2" 2-125-UTR-1250-S 2-125-UTT-1250-S 2-7/8" 100
12" 5" Urethane on Iron 12000 15-1/2" 2-125-UIR-1250-S 2-125-UIT-1250-S 2-7/8" 90
12" 6" Cast Iron 20000 15-1/2" 2-125-CIR-1260-S 2-125-CIT-1260-S 2-7/8" 130
12" 6" Urethane on Iron 15000 15-1/2" 2-125-UIR-1260-S 2-125-UIT-1260-S 2-7/8" 95
14" 4" Ultra Thick Urethane 12400 18-1/2" 2-125-UTR-1440-S 2-125-UTT-1440-S 3-3/8" 120
14" 5" Ultra Thick Urethane 15200 18-1/2" 2-125-UTR-1450-S 2-125-UTT-1450-S 3-3/8" 150
14" 6" Urethane on Iron 15600 18-1/2" 2-125-UIR-1460-S 2-125-UIT-1460-S 3-3/8" 170
16" 4" Ultra Thick Urethane 14200 19-1/2" 2-125-UTR-1640-S 2-125-UTT-1640-S 3-9/16" 130
16" 4" Urethane on Iron 12000 19-1/2" 2-125-UIR-1640-S 2-125-UIT-1640-S 3-9/16" 130
16" 5" Ultra Thick Urethane 17600 19-1/2" 2-125-UTR-1650-S 2-125-UTT-1650-S 3-9/16" 210
16" 5" Urethane on Iron 16800 19-1/2" 2-125-UIR-1650-S 2-125-UIT-1650-S 3-9/16" 200
18" 5" Urethane on Iron 17200 22" 2-125-UIR-1850-S 2-125-UIT-1850-S 4-3/8" 270
20" 5" Urethane on Iron 18000 23-1/2" 2-125-UIR-2050-S 2-125-UIT-2050-S 4-5/16" 280
To order a rigid caster, change the “S" to “R" in the model number. For example: “2-125-CIR-0840-R". To order rig only, omit the blue letters. For example: “2-125-0840-S". Dimensions shown are nominal. If precise dimensions are required, consult your RWM representative. For approximate weight of our rigid casters, deduct 5.4 pounds per item.