Category 08 - Extra Heavy Duty
Acorn™ is known as the Caster and Wheel Experts for U.S. and EURO standards. We design the best casters and wheels to meet every load requirement and application from Categories 1-10.

Acorn™ Category 08 PDF
Click here to download Acorn's Category 08 PDF

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Acorn™ Series Casters
8A (Albion) Series Casters
8D (Darnell) Series Casters
8M (Muvtons) Series Casters
8R (RWM) Series Casters

Acorn Series Casters
8-94BBL Series Kingpin / Hot Forged Caster 8-94BBL Acorn™ Series
Kingpin / Hot Forged

Load Capacity Up to 6000 lbs.
• Top Plate / Yoke Base: 1/2" 1045 AISI drop forged steel
Swivel Load: 5" diameter ball load race with 1/2" steel balls hardened for greater resistance to wear and brinelling. Protected by a forged labyrinth skirt.
Thrust Bearing: 1-1/4" tapered roller bearing
Legs: 3/8" x 4” formed steel plate welded inside and out to yoke base and rigid top
King Bolt: 1-1/4" diameter integrally forged with top plate for maximum strength
Axle: 1" solid axle with lock nut
• Zerk fitting in swivel section and wheel hub
Top Plate Sizes: C/R, C/S, 94R, 94S
Click here for complete specifications

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8-94TRL Series Kingpin Caster 8-94TRL Acorn™ Series
Kingpin

Load Capacity Up to 10,000 lbs.
• Top Plate / Yoke Base: 1/2" 1045 AISI drop forged steel
Swivel Load Race: Precision tapered roller bearing which has 5" outside diameter for increased capacity
Thrust Bearing: 1-1/4" tapered roller bearing
• Legs: 3/8" x 4" formed steel plate welded inside and out to yoke base and rigid top
King Bolt: 1-1/4" diameter integrally forged with top plate for maximum strength
Axle: 1" solid axle with lock nut
• Zerk fitting in swivel section and wheel hub
Top Plate Sizes: C/R, C/S, 94R, 94S
Click here for complete specifications

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Selection of Albion Casters
Albion 94 TRL Series Caster 8A-94 TRL Albion Series
Super Duty Kingpin Casters

Load Capacity Up to 10,000 lbs.
Top Plate and Yoke Base: 1/2” thick AISI 1045 drop forged steel
Swivel Load Race: Precision tapered roller bearing which has 5” outside diameter for increased capacity
Thrust Bearing: 1-1/4” tapered roller bearing
Legs: 3/8” formed steel plate welded inside and outside for additional strength
King Bolt: 1-1/4” diameter integrally forged with top plate for maximum strength
Axle: 1” solid axle with lock nut
Lubrication: Zerk fitting in yoke base and wheel hubs for ease of lubrication
• Alternate or custom caster
Download 8A-94 TRL Series PDF
Download Albion Parts & Accessories Catalog

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Albion 94 BBL Series Caster 8A-94 BBL Albion Series
Super Duty Kingpin Casters

Load Capacity Up to 10,000 lbs.
Top Plate and Yoke Base: 1/2” thick AISI 1045 drop forged steel
Swivel Load: 5” diameter ball load race with 1/2” steel balls hardened for greater resistance to wear and brinelling. Protected by a forged labyrinth skirt.
Thrust Race: 1-1/4” tapered roller bearing
Legs: 3/8” formed steel plate welded inside and out to yoke base and rigid top
King Bolt: 1-1/4” diameter integrally forged with top plate for maximum strength
Axle: 1” solid axle with lock nut
Lubrication: Zerk fitting in yoke base and wheel hubs for easy lubrication
• Alternate or custom caster configurations available
Download 8A-94 BBL Series PDF
Download Albion Parts & Accessories Catalog

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Albion Shockmaster 600 Series Caster 8A-600 Albion Series
Shockmaster™ Kingpinless Casters

Load Capacity Up to 8,000 lbs.
Top Plate: 1/2" thick AISI 1045 steel one-piece forging precision machined and for long life
Swivel Section: 3/4" ball bearings mounted in a 4-1/2" precision machined raceway. Zerk in swivel section.
Legs: 3/8" thick steel welded to yoke base using 100,000 psi weld filler
Axle: 1” diameter
• Alternate or custom caster configurations available
Download 8A-600 Albion Shockmaster™ PDF
Download Albion Parts & Accessories Catalog

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Albion Contender 610 Series Caster 8A-610 Albion Series
Contender™ Kingpinless Casters

Load Capacity Up to 8,000 lbs.
Top Plate: 1/2" thick AISI 1045 steel precision machined and through-hardened for long life
Swivel Section: 3/4" ball bearings mounted in a 4-3/8" precision machined raceway. Zerk in swivel section.
Legs: 3/8" thick steel welded to yoke base using 100,000 psi weld filler
Axle: 2-1/2" and 3" tread width wheels feature a 3/4" axle, 3-1/2" and 4" tread width wheels feature a 1" axle
• Alternate or custom caster configurations available
Download 8A-610 Albion Contender™ PDF
Download Albion Parts & Accessories Catalog

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Albion Contender Albion Shockmaster Series Casters

Albion Contender™ and Shockmaster™ Series
Contender™: S310, S410 and S610
Shockmaster™: S300, S400, S600 and S700

Shockmaster and Contender kingpinless, spring loaded casters offer greater capacity and protection from damaging shock or unwanted vibration and movement. Noise levels are reduced through the dampening effect of these casters.
Load Springs: Different load springs for each series permits wide variation in ride “softness.”
Complete Line: Available on all 300 series to 700 series Shockmaster and Contender Kingpinless models. See Shockmaster and Contender section of catalog for more information.
Swivel Section: Kingpinless design. Ball bearing mounted in a machined raceway.
Axle: 3/4" diameter standard. Optional 1" diameter available.
• Alternate or custom caster configurations available
Typical Applications:
• Aviation Ground Support
• Aircraft tripod jacks
• Portable medical equipment
• Computer equipment
• Shock sensitive loads
Download Albion Contender™ and Shockmaster™ Series PDF
Download Albion Parts & Accessories Catalog

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Selection of Darnell Casters
Darnell Caster Series R110 8D-R110 Darnell Series
Heavy Duty / Forged Steel Casters

Load Capacity Up to 5500 lbs.
Integrally Forged Kingpin: Large 1" King pin is integrally forged with upper raceway using SAE-1050 quality grade steel. Used with a slotted nut to allow for proper bearing adjustment whenever necessary. Designed to be virtually indestructible!
Hot Forged Steel Construction: Top plate, yoke base and bearing retainer are hot forged using SAE-1050 hardening quality steel. Raceways are precision machined for 1/2" hardened chrome steel load bearings and tapered thrust bearing.
Flame Hardened Swivel Raceway: All bearing raceways are flame hardened to extend service life, reduce brinelling from shock loads, and to generally improve swivel performance.
Formed and Welded Fork Legs: Extra-wide 3/8" x 4" side forks with formed reinforcing bubble are continuously welded on for added strength.
Locked Wheel Axle: Special 3/4" ground steel axle bolt is locked in position with indexing lance in side fork to prevent unwanted movement.
Download 8D-R110 Darnell Series PDF

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Darnell Heavy Duty Dual Wheel Series Casters

8D-R110-DW Darnell Series
Heavy Duty / Dual Wheel Caster

Load Capacity 820 to 9600 lbs.
Integrally Forged Kingpin: Solid king pin is integrally forged with upper raceway using SAE-1050 quality grade steel. Used with a slotted nut to allow for proper bearing adjustment whenever necessary. Designed to be virtually indestructible!
Hot Forged Steel Construction: Top plate, yoke base and bearing retainer are hot forged using SAE-1050 hardening quality steel. Raceways are precision machined for 5/8" hardened chrome steel load bearings and tapered thrust bearing.
Flame Hardened Swivel Raceway: All bearing raceways are flame hardened to extend service life, reduce brinelling from shock loads, and to generally improve swivel performance.
Download 8D-R110-DW Darnell Series PDF

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Darnell Caster Series R110 Shock Absorbing 8D-R110-SA Darnell Series
Shear Disc
Shock Absorbing Casters

Load Capacity Up to 1500 lbs.
Very popular in automotive tow-line applications, these casters reduce damage to products, rolling equipment, and floors. The nonlinear suspension also makes the work place quieter by cutting vibration generated noise of in-plant trailers by 50% or more. Heavy-duty caster yoke features SAE 1050 forged steel top plate and yoke base with integral king pin and flame hardened raceways. Because the shear disc works within the confines of conventional mounting dimensions, it is much easier to switch over and start saving floors, equipment and hearing.
Download 8D-R110-SA Darnell Series PDF

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Darnell Caster Series R800 8D-R800 Darnell Series
Extra Heavy Duty / Forged Steel Casters

Load Capacity Up to 6000 lbs.
Integrally Forged Kingpin: Large 1-1/4" King pin is integrally forged with upper raceway using SAE-1050 quality grade steel. Used with a slotted nut to allow for proper bearing adjustment whenever necessary. Designed to be virtually indestructible!
Hot Forged Steel Construction: Top plate, yoke base and bearing retainer are hot forged using SAE-1050 hardening quality steel. Raceways are precision machined for 5/8" hardened chrome steel load bearings and tapered thrust bearing.
Flame Hardened Swivel Raceway: All bearing raceways are flame hardened to extend service life, reduce brinelling from shock loads, and to generally improve swivel performance.
• Embossed and Welded Fork Legs: Side forks are embossed and continuously welded on both sides for added strength.
Locked Wheel Axle: Special 3/4" axle bolt is locked in position with indexing lance in side fork to prevent unwanted movement.
Download 8D-R800 Darnell Series PDF

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Darnell Caster Series 4100 Shock Absorbing 8D-4100-SA Darnell Series
Medium Heavy Duty
Shock Absorbing Casters

Load Capacity Up to 800 lbs.
Designed to reduce noise and isolate medium heavy loads from shock as they are rolled over rough or irregular surfaces. Upper swivel raceway consists of 3/8" hardened steel top plate and base plate that is machined to close tolerances and dimensions. Yoke legs are continuously welded to yoke base for added strength and endurance. Upper raceway is permanently assembled with neoprene grease seal. Bottom raceway is covered with a metal grease seal cap that is press fit then secured with epoxy. Pressure fitting is provided for lubrication using conventional grease guns. Standard finish is Laguna Blue.
Download 8D-4100 Darnell Series PDF

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Darnell Caster Series 4400 Shock Absorbing 8D-4400-SA Darnell Series
Heavy Duty
Shock Absorbing Casters

Load Capacity Up to 5000 lbs.
Engineered to absorb shock and reduce noise in heavy-duty applications. Features a precisely machined swivel raceway, 5/8" thick steel top plate, heavy-duty tapered swivel bearings for both upper main load bearing and lower thrust bearing, plus an extra-strong 1-1/4" welded stud and king bolt. Standard finish is Laguna Blue.
Download 8D-4400 Darnell Series PDF

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Darnell Caster Series 4500 Workstand 8D-4500 Darnell Series
Extra Heavy Duty
Workstand Casters

Load Capacity Up to 10,000 lbs.
Typically used in the aviation and aerospace industry on heavy-duty workstands for aircraft maintenance or assembly. Features include a precisely machined swivel raceway, special extra-heavy duty tapered swivel bearings for both upper main load bearing and lower thrust bearing, plus an extra strong 1-1/4" welded stud and king bolt. The best choice for a single wheel, non-spring loaded caster for aviation workstands and equipment. Standard finish is Laguna Blue.
Download 8D-4500 Darnell Series PDF

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Darnell Caster Series 5200 Workstand Caster 8D-5200 Darnell Series
Super Heavy Duty
Workstand Casters

Load Capacity Up to 20,000 lbs.
For aviation and aerospace workstands that require the highest load capacity and receive the most severe handling. A combination of better load distribution and the differential action of the twin wheel offers higher load capacity and requires less effort to change the direction of the swivel. Heavy supporting center leg and side forks are flame cut from thick plate steel and continuously welded on both sides for added strength and durability. Super heavy-duty tapered bearings support the main load bearing and lower thrust bearing of the swivel raceway. Standard finish is Laguna Blue.
Download 8D-5200 Darnell Series PDF

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Selection of Muvtons Casters
Muvtons Caster GTB 8M-GTB Muvtons Series
Forked Kingpinless Caster
Load Capacity Up to 10,000 lbs.
• Single piece Drop Forged AISI 1045 Steel Top Plate and Fork Base
• Precision CNC Machined Raceways, 4-1/2" dia with 3/4" ball bearings
• Induction Hardening of Raceways ensures uniform depth of hardness
• Totally Sealed Swivel Head with Grease Nipple
• 3/8" Thick x 4" wide fork legs robotically welded Inside and Outside to 4-1/2" fork spacing
• 1" Wheel axle
• 4 Position Directional Lock Slots
• Finish : Bright Zinc Plated
Download 8M-GTB Muvtons Series PDF

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Selection of RWM Casters
8-94KR/DW Series Kingpinless / Dual Wheel Caster 8R-2-85 RWM Series
Kingpinless / Dual Wheel Caster

Load Capacity Up to 10,000 lbs.
Raceway Design: Patented Kingpinless™ single ball bearing precision machined raceway hardened to 53 Rockwell C minimum. 4-1/4” diameter raceway with 5/8” ball bearings.
Axle: 3/4” bolt and nut for 3” wide, 1” or 1-1/4” bolt and nut for 4” wide, 1-1/4” bolt and nut for 5” wide.
Finish: Laguna Blue paint
Wheels: 3” wide wheels are available with either a 1” roller bearing that rotates on 3/4” x 1” x 3-9/16” hardened and ground spanner bushings or 3/4” tapered bearings that rotate on a 3/4” axle. 4” and 5” wheels are available with either a 1-1/4” I.D. roller bearing which rotates on hardened and ground spanner bushings or 1-1/4” tapered bearings which rotate on the axle. All wheels are equipped with lubrication fitting.
Mounting Plate Size: 6” x 7”
Bolt Hole Spacing: 4-5/8” x 5-1/2”, slotted to 4-3/8” to 5-5/8”
Mounting Bolt Diameter: 1/2”
Leg Thickness: 3/8” double welded
Mounting Plate Thickness: 1/2”
Download 8R-2-85 RWM Series PDF

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RWM 85 Series Caster

8R-85 RWM Series
Kingpinless / Heavy Duty Casters

Load Capacity Up to 10,000 lbs.
Best solution for demanding applications. Unmatched in extending service life, reducing all possible causes for caster failure. Available with wheels up to 5" wide for higher capacity ratings. This caster is built to take the punishment experienced in high shock and impact loads. Made in the U.S.A.
Raceway Design: Patented Kingpinless™ single ball bearing precision machined raceway hardened to 53 Rockwell C minimum. 4-1/4" diameter raceway with 5/8" ball bearings.
Leg Thickness: 3/8", 3" wide for 3" wheels, 4" wide for 4" wheels, 5" wide for 5" wheels.
Axle: 3/4" bolt and nut for 3" wide, 1" or 1-1/4" bolt and nut for 4" wide, 1-1/4" bolt and nut for 5" wide.
Finish: Laguna Blue paint
Wheels: 3" wide wheels are available with either a 1" roller bearing that rotates on a 3/4" x 1" x 3-9/16" hardened and ground spanner bushing or 3/4" tapered bearings that rotate on a 3/4" axle. 4" and 5" wheels are available with either a 1-1/4" I.D. roller bearing which rotates on a hardened and ground spanner bushing or 1- 1/4" tapered bearings which rotate on the axle. All wheels are equipped with lubrication fitting.
Mounting Plate Size: 6" x 7" x 1/2"
Bolt Hole Spacing: 4-5/8" x 5-1/2", slotted to 4-3/8" x 5-5/8"
Mounting Bolt Diameter:1/2"
Download 8R-85 RWM Series PDF

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RWM 95 Series Caster

8R-95 RWM Series
Kingpinless / Heavy Duty Casters

Load Capacity Up to 20,000 lbs.
Best solution for demanding applications. Unmatched in extending service life, reducing all possible causes for caster failure. Capacity up to 20,000 pounds with a wide variety of heavy duty wheels to maximize capacity. Made in the U.S.A.
Raceway Design: 4-1/2" diameter with 3/4" diameter carbon steel balls. Precision machined and hardened to 53 Rockwell C minimum scale. Load and thrust are accommodated by our patented Kingpinless™ design. Sealed raceway is standard.
Leg Thickness: 3/8" formed steel
Axle: 3/4" bolt and nut for 3" wide, 1" or 1-1/4" bolt and nut for 4" wide, 1-1/4" bolt and nut for 5" wide
Lubrication: Grease fitting in swivel and hub of wheel
Finish: Laguna Blue paint
Wheels: 3" wide wheels are available with either a 1" roller bearing that rotates on a 3/4" x 1" x 3-9/16" hardened and ground spanner bushing or 3/4" tapered bearings that rotate on a 3/4" axle. 4" and 5" wheels are available with either a 1-1/4" I.D. roller bearing which rotates on a hardened and ground spanner bushing or 1- 1/4" tapered bearings which rotate on the axle. All wheels are equipped with a lubrication fitting.
Mounting Plate Size: 6-1/4" x 7-1/2" x 1/2" swivel top plate, 6" x 7-1/2" x 1/2" rigid top plate
Bolt Hole Spacing: 4-1/2" x 6", slotted to 4-1/8" x 6-1/8"
Swivel Yoke Base: SAE 1045 hot steel forging
Swivel Top Plate: SAE 1045 hot steel forging
Mounting Bolt Diameter: 1/2"
Download 8R-95 RWM Series PDF

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U.S. Caster Industry
Categories 1-10


Category 01
Light Duty

Category 02

Light Duty

Category 03
Medium Duty

Category 04
Medium Duty

Category 05
Heavy Duty

Category 06
Heavy Duty

Category 07
Heavy Duty

Category 08
Extra Heavy Duty

Category 09
Extra Heavy Duty

Category 10
Extra Heavy Duty


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Acorn Industrial Products Co  |  520 Hertzog Boulevard  |  King of Prussia, PA 19406
Phone 800-523-5474  |  Fax 800-782-6780  |  E-Mail acorn@acornindprod.com