Category 04 - Medium Duty Casters
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.

Click on the links below to quickly scroll down the page:
Kingpin Casters
Hybrid Casters
Kingpinless Casters
Shock Absorbing Casters
Stainless Steel Casters


Kingpin Casters

4-16 Kingpin / Cold Forged Caster 4-16 Series
Cold Forged Caster

Load Capacity Up to 1250 lbs.
• Top Plate / Yoke Base: Cold-Forged from 1/4" steel plate
• Full double ball swivel bearing
• Heat-treated raceways
• Kingpin: 5/8" or 3/4"
• Zerk fitting in swivel and in recessed head of hollow axle
• Top Plate Size: 16
Download 4-16 Caster PDF

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4-16J Series Caster 4-16J Series
Bright Zinc Plated Caster

Load Capacity Up to 1250 lbs.
• Finish: bright zinc plating to resist rust and corrosion.
• Design: fork legs formed from 1/4” thick steel
• Swivel Construction: double ball bearing with hardened raceways.
• Axle: 1/2” diameter.
• King Pin: 5/8” steel rivet, hydraulically upset.
• Zerk Grease Fitting: swivel raceway.
• Fork Leg Spacing: 2-1/2”
Download 4-16J Caster PDF

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4-16M Kingpin / Yellow Zinc / Adjustable Total Lock Caster 4-16M Series
Yellow Zinc (w/ Adjustable Total Lock) Caster

Load Capacity Up to 1000 lbs.
• Top Plate / Yoke Base: Cold-Forged from 1/4" steel plate
• Full double ball swivel bearing
• Heat-treated raceways
• Kingpin & Nut: 5/8"
• Zerk fitting in swivel and in recessed head of hollow axle
• Top Plate Sizes: 12, 16 (standard)
Download 4-16M Caster PDF

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4-71 Kingpin / Hot Forged Caster 4-71 Series
Hot Forged Caster

Load Capacity Up to 1500 lbs.
• Top Plate: AISI 1045 drop-forged steel for enhanced strength
• Double ball bearing with coined “deep-groove” load and machined component thrust raceway
• Kingpin & Nut: 3/4"
• Zerk fitting in swivel and in recessed head of hollow axle
• Top Plate Sizes: 71 (standard), C, H, J
Download 4-71 Caster PDF

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4-71HD Series Kingpin HD/ Hot Forged / Total LockmCaster 4-71HD Series
Hot Forged (w/ Total Lock) Caster

Load Capacity Up to 1200 lbs.
• Top Plate: Single piece hot forged alloy steel
• Integrally forged kingpin
• Forged lower raceway
• Sealed, double-ball raceways
• CNC machined precision raceways
• Induction hardened main raceways
• 1/4" legs robotically welded inside and outside
• Finish: Zinc passivated or black
• Optional 4-position directional lock slots
• Top Plate Size: 71
Download 4-71HD Caster PDF

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Hybrid Casters

Hybrid Caster / Heavy Duty Yoke 4-16E Series
46 Hybrid / Heavy Duty Yoke
Load Capacity Up to 2000 lbs.
• Kingpinless strength with Kingpin simplicity
• Kingpinless style drop forged raceway
• 3/8” Ball bearings (HRC45 steel)
• 3/4” Kingpin / Nut hardened
• 1/4” Cold forged top plate (ASTM 1045)
• Long life of caster with low cost
• Extra high endurance in distance traveled
Download 4-16E Series PDF

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Kingpinless Casters

4-16K Series Kingpinless Caster 4-16K Series
Welded Steel Caster

Load Capacity Up to 1400 lbs.
• Top Plate: 5/16" AISI 1045 steel welded and heat treated
Yoke Base: Notched AISI 1045 steel
• Swivel Section: One row of 3/8" ball bearings mounted in a heat-treated precision machined offset raceway
• Finish: Zinc plated
• Top Plate Sizes: 12, 16 (standard), J, K
Download 4-16K Caster PDF

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4-16KZT Series Kingpinless / Yellow Zinc / Precision Swivel 4-16KZT Series
Precision Swivel Caster

Load Capacity Up to 1250 lbs.
• Top Plate: Cold formed from 1/4" steel plate.
• Yoke base: Notched for factory or field-installable 4-position swivel lock
 • Swivel Section: Precision sealed ball bearing
• Legs: 1/4” steel, formed to increase strength and welded on inside and outside of yoke base
• Top Plate Sizes: 12, 16 (standard), 62
Download 4-16KZT Caster PDF

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4-71KJ Series Caster 4-71KJ Series
Bright Zinc Plated Caster

Load Capacity Up to 1400 lbs.
• Design: kingpinless style swivel raceway.
• Swivel Construction: 5/16” thick 1045 steel top plate; one row of 3/8” ball bearings mounted in a heat treated precision machined raceway.
• Finish: bright zinc plating to resist rust and corrosion.
• Axle: 1/2” diameter with lock nut.
• Fork Legs: 1/4” x 2” 1045 steel welded inside and out.
• Zerk Grease Fitting: swivel raceway and wheels with roller
bearings
Download 4-71KJ Caster PDF

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4-71KHD Series Kingpin HD / Adjustable Total Lock Caster 4-71KHD Series
Precision Caster (w/ Adjustable Total Lock)

Load Capacity Up to 1400 lbs.
• Single piece forged alloy steel top plate and fork base
• Precision raceways, CNC machined 2-1/8" diameter with 5/16" balls
• Induction hardened raceway ensure uniform depth of hardness
• Totally sealed swivel head
• 1/4" thick formed legs robotically welded inside and outside to 2-1/2" fork spacing
• 1/2" wheel axle
• Finish: Bright zinc plated
• Top Plate Sizes: 71 (standard), 72
Download 4-71KHD Caster PDF

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4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-71KHD/SA Series
Shock Absorbing Caster

Load Capacity Up to 1200 lbs.
• Single piece forged alloy steel top plate and fork base
• Precision CNC machined raceways / Induction hardened raceways
• Totally sealed swivel head with grease nipple
• Specific elastomeric spring elements are available to suit different load ranges
• Strong 1/4" thick fabricated construction of forks
• Finish: Zinc plated, ROHS compliant or black polymer color-coated
• Top Plate Size: 16
Download 4-71KHD/SA Caster PDF

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Shock Absorbing Casters

4-16SL Series Kingpin Shock Absorbing Caster 4-16SL Series
Shock Absorbing Caster

Load Capacity Up to 1000 lbs.
• Oil Impregnated lubricated sintered bearings for all moving parts
• Sealed precision ball bearings in the wheel – permanently lubricated
• Sealed swivel assembly with grease fitting
• Various mounting plates and stems are available
• Top Plate Size: 16
Download 4-16SL Caster PDF

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4-16SA Series Kingpin Shock Absorbing Caster 4-16SA Series
Shock Absorbing Caster

Load Capacity Up to 500 lbs.
• Load Springs: Maximum rated capacity loads deflect wheel approximately 3/8" (50%)
• Swivel Section: Cold formed, hardened double ball bearing raceways
• Legs: 1/4" steel cold formed
• King Bolt: 5/8" diameter orbitally spun steel rivet
• Top Plate Size: 16
Download 4-16SA Caster PDF

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Stainless Steel Casters

4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-16SS Series
Kingpin / Stainless Steel

Load Capacity Up to 1000 lbs.
• Type 304 Stainless steel double ball raceway with stainless steel balls
• Zerk Fitting in the swivel section and head of the axle bolt
• Stainless steel Kingpin & Nut: 5/8" diameter
• Top Plate & Legs: 1/4" stainless steel
• Axle: Stainless steel / Lock Nut: 1/2" with & without stainless steel zerk
Note: zerk not necessary with precision ball bearing wheels
• Various stainless steel stem sizes available
• Top Plate Sizes: 12, 16 (standard), 62, ISO, K5, PFI
Download 4-16SS Series PDF

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4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-16M/PSS Series
Kingpin / Polished Stainless Steel

Load Capacity Up to 900 lbs.
• Constructed of 304 polished stainless steel for added corrosion protection
• Top Plate, Fork Legs and Yoke Base: 1/4" thick
• Dual ball swivel raceways for added strength
• Swivel seals are standard for added protection
• Grease fitting in swivel raceway
• Top Plate Size: 16
Download 4-16M/PSS Series PDF

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4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-16PSS Series
Kingpin / Polished Stainless Steel

Load Capacity Up to 1200 lbs.
• Constructed of 304 polished stainless steel
• Top Plate / Yoke Base: 1/4"
• Swivel Section: Double stainless steel ball bearing raceways
• Solid axle with delrin and precision ball bearings
• Legs: 1/4” stainless steel welded to the yoke base
• Top Plate Size: 16
Download 4-16PSS Series PDF

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4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-16K/PSS Series
Kingpinless / Polished Stainless Steel

Load Capacity Up to 1400 lbs.
• Constructed of 304 polished stainless steel
• Top Plate: 5/16" welded construction
• Yoke Base: Notched stainless steel welded inside and out
• Legs: Welded inside and out
• Swivel Section: One row of 3/8" ball bearings mounted in a precision machined raceway
• Alternate or custom caster configurations available
• Top Plate Size: 16 (standard), D, J, K
Download 4-16K/PSS Series PDF

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4-71KHDSA Series Kingpinless Shock Absorbing Caster 4-71KHD/PSS Series
Kingpinless HD/ Polished Stainless Steel / Adjustable Total Lock

Load Capacity Up to 2000 lbs.
• Constructed of 304 polished stainless steel
• Precision CNC machined raceways
• Totally sealed swivel head with grease nipple
• 1/4" thick formed legs robotically welded inside and outside to 2-1/2" fork spacing
• Finish: Polished bright or bead blasted
• Top Plate Size: 71
Download 4-71KHD/PSS Series PDF

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In-Plant Caster & Wheel Survey
Click here to download the Acorn™ In-Plant Caster & Wheel Survey PDF or Contact Acorn for additional information.
Learn more about the Benefits of an In-Plant Survey.


Demonstrations / Quotes
Contact Acorn today for product selection / demonstration, application assistance or to request a quote.

 

 

U.S. Caster Industry
Categories 1-10


Category 01 - Light Duty
For loads up to 150 lbs

Category 02 - Light Duty

For loads up to 300 lbs

Category 03 - Medium Duty
For loads up to 600 lbs

Category 04 - Medium Duty
For loads up to 900 lbs

Category 05 - Heavy Duty
For loads up to 1400 lbs

Category 06 - Heavy Duty
For loads up to 2000 lbs

Category 07 - Heavy Duty
For loads up to 3500 lbs

Category 08 - Extra Heavy Duty
For loads up to 10,000 lbs

Category 09 - Extra Heavy Duty
For loads up to 20,000 lbs

Category 10 - Extra Heavy Duty
For loads up to 40,000 lbs


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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