CASTERS
M05
MEDIUM DUTY CASTER • UP TO 2,500 LB
4 1/2” x 6 1/4” TOP PLATE • KINGPINLESS RACEWAY
4”- 8” Wheel Diameter | 2” Wheel Width | Zinc Plated Finish
A favorite for medium duty applications, with large American top plate over Kingpinless construction and CNC-machined, large Ball Bearing Raceway - significantly better over traditional Kingpin casters for lateral durability, better maneuverability, & ergonomics. 1/4” inch thick top plate and legs for extra robustness.

M05NY0802SFB
(Face Wheel Brake option shown.)

3/8” Mounting Bolt


Available Materials and Sizing Shown Below
WHEEL DIAMETER | OVERALL HEIGHT | SWIVEL LEAD |
|---|---|---|
4" | 5 5/8" | 1 1/8" |
5" | 6 1/2" | 1 1/2" |
6" | 7 1/2" | 1 9/16" |
8" | 10 1/8" | 2 3/4" |
OPTIONS AVAILABLE

Swivel Lock
Demountable – DSL
Weld-On – SL

Wheel Brake
Face – FB
Cam – CB
Top Lock – TLB

High Temperature
HT

Custom Plating
Electroless Nickel
or Zinc Dichromate;
Inquire for More Options

Custom Color
Inquire for
Caster and/or Wheel

Toe Guard
TO
Precision-machined in by Acorn® from ultrasound-tested, domestically made, cast polyamide. Floor-protective even under very high loads. Exceptionally long service life. Best-in-class ergonomics and extremely low rolling resistance under extreme loads. Resistant to chemicals, salts, greases, and acids (inquire for full compatibility list). Excellent for steam cleaning. Ideal for extremely high-load, low-speed applications as a durable alternative to metallic wheels. Non-marking.

Black/MD – NY
Bearing: Precision Ball
Temperature Range: -40ºF to 230ºF
Hardness: 80º Shore D ± 5º
Best-in-class ergonomics, machined out of Ultrasound tested, domestically made Nylon. Filled with MOS2 additive. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05NY0402S | M05NY0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05NY0402S | 4" | 2" | 2,500 |
M05NY0502S | 5" | 2" | 2,500 |
M05NY0602S | 6" | 2" | 2,500 |
M05NY0802S | 8" | 2" | 2,500 |

Natural – NN
Bearing: Precision Ball
Temperature Range: -40ºF to 230ºF
Hardness: 80º Shore D ± 5º
Best-in-class ergonomics, machined out of Ultrasound tested, domestically made Nylon. FDA Approved formulation. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05NN0402S | M05NN0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05NN0402S | 4" | 2" | 2,500 |
M05NN0502S | 5" | 2" | 2,500 |
M05NN0602S | 6" | 2" | 2,500 |
M05NN0802S | 8" | 2" | 2,500 |

High Temp Blue – NB
Bearing: Precision Ball
Temperature Range:–40ºF to 250ºF continuous. (Intermittent up to 350º+)
Hardness: 80º Shore D ± 5º
Best-in-class ergonomics, machined out of Ultrasound tested, domestically made Nylon. Excellent problem solver for continuous dry or moist heat. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05NB0402S | M05NB0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05NB0402S | 4" | 2" | 2,500 |
M05NB0502S | 5" | 2" | 2,500 |
M05NB0602S | 6" | 2" | 2,500 |
M05NB0802S | 8" | 2" | 2,500 |

High Temp SXHA White – NS
Bearing: Precision Ball
Temperature Range:–40ºF to 250ºF continuous. (Intermittent up to 350º+)
Hardness: 80º Shore D ± 5º
Best-in-class ergonomics, machined out of Ultrasound tested, domestically made Nylon. Excellent problem solver for continuous dry or moist heat. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05NS0402S | M05NS0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05NS0402S | 4" | 2" | 2,500 |
M05NS0502S | 5" | 2" | 2,500 |
M05NS0602S | 6" | 2" | 2,500 |
M05NS0802S | 8" | 2" | 2,500 |

Kleaneride Blue – KR
Bearing: Ball
Temperature Range:-40ºF to 180ºF
(250º intermittent up to 30 min.)
Hardness: 60º Shore D +/- 5
Polyester Polyurethane Machined from solid - excellent for steam cleaning and pharmaceutical applications.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05KR0402S | M05KR0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05KR0402S | 4" | 2" | 500 |
M05KR0502S | 5" | 2" | 600 |
M05KR0602S | 6" | 2" | 700 |
M05KR0802S | 8" | 2" | 800 |

Kleaneride Gray – KG
Bearing: Ball
Temperature Range:-40ºF to 180ºF
(250º intermittent up to 5-6 hours.)
Hardness: 60º Shore D +/- 5
Polyester Polyurethane Machined from solid - excellent for steam cleaning and pharmaceutical applications that neccesitate additional heat requirements.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05KG0402S | M05KG0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05KG0402S | 4" | 2" | 500 |
M05KG0502S | 5" | 2" | 600 |
M05KG0602S | 6" | 2" | 700 |
M05KG0802S | 8" | 2" | 800 |

Poly on Aluminum – PA
Bearing: Roller
Temperature Range:-45ºF to 180ºF
Hardness: 95º Shore A +/- 5
Heavy duty polyurethane chemically bonded to a cast aluminum core. Non-marking and excellent longevity.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05PA0402S | M05PA0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05PA0402S | 4" | 2" | 800 |
M05PA0502S | 5" | 2" | 900 |
M05PA0602S | 6" | 2" | 1,200 |
M05PA0802S | 8" | 2" | 1,200 |

Ergo Poly on Aluminum – EP
Bearing: Ball
Temperature Range:-45ºF to 180ºF
Hardness: 95º Shore A +/- 5
Heavy duty polyurethane, chemically bonded to a cast aluminum core, with special ball bearings and donut shaped tread for increased ergonomics.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05EP0402S | M05EP0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05EP0402S | 4" | 2" | 850 |
M05EP0502S | 5" | 2" | 900 |
M05EP0602S | 6" | 2" | 1,000 |
M05EP0802S | 8" | 2" | 1,200 |

Solid Elastomer – SE
Bearing: Ball
Temperature Range:-45ºF to 180ºF
Hardness: 65º Shore D +/- 5
Solid polyurethane bonded to a glass fileld nylon core. Non marking, ergonomic, and high load capacity.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05SE0502S | M05SE0502R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05SE0502S | 5" | 2" | 1,400 |
M05SE0602S | 6" | 2" | 1,700 |
M05SE0802S | 8" | 2" | 2,000 |
M05SE0402S | 4" | 2" | 1,000 |

Uber Poly – UP
Bearing: Ball
Temperature Range:-45ºF to 180ºF
Hardness: 95º Shore A +/- 5
Heavy duty polyurethane with excellent ergonomics, chemically bonded to a cast iron core.Formulated to resist delamniation in continuous or especially rugged applications.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05UP0602S | M05UP0602R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05UP0602S | 6" | 2" | 2,000 |
M05UP0802S | 8" | 2" | 2,000 |

Dual Action Poly – DW
Bearing: Ball
Temperature Range:-45ºF to 180ºF
Hardness: 95º Shore A*
*ADD SUFFIX FOR COLOR/DUROMETER BELOW, e.g. M01DW0402S65A:
(65A) Black/65º Shore A, (65D) Gray/65º Shore D, (85A) Red/85º Shore A
Dual articulating polyurethane on steel wheels with oversized ball bearings for increased ergonomics. Non-marking. Lower durometers will decrease load capacity - please consult Acorn.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05DW0402S | M05DW0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05DW0402S | 4" | 2" | 950 |
M05DW0502S | 5" | 2" | 1,150 |
M05DW0602S | 6" | 2" | 1,400 |
M05DW0802S | 8" | 2" | 1,600 |

Molded Nylon – MN
Bearing: Roller
Temperature Range:-40ºF to 250ºF
Hardness: 85º Shore D +/- 5
Solid molded nylon 6/6. Non-marking, good for food and pharma applications that do not require significant load capacity.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05MN0402S | M05MN0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05MN0402S | 4" | 2" | 800 |
M05MN0502S | 5" | 2" | 900 |
M05MN0602S | 6" | 2" | 1,200 |
M05MN0802S | 8" | 2" | 1,300 |

Polyolefin (White) – PO
Bearing: Roller
Temperature Range:-20ºF to 180ºF
Hardness: 85º Shore D +/- 5
Molded thermoplastic blend of polypropylene with PE and impact modifiers. Excellent chemical and moisture resistance. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05PO0402S | M05PO0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05PO0402S | 4" | 2" | 500 |
M05PO0502S | 5" | 2" | 650 |
M05PO0602S | 6" | 2" | 700 |
M05PO0802S | 8" | 2" | 900 |

Polyolefin (Black) – PB
Bearing: Roller
Temperature Range:-20ºF to 180ºF
Hardness: 85º Shore D +/- 5
Molded thermoplastic blend of polypropylene with PE and impact modifiers. Excellent chemical and moisture resistance. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05PB0402S | M05PB0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05PB0402S | 4" | 2" | 500 |
M05PB0502S | 5" | 2" | 650 |
M05PB0602S | 6" | 2" | 700 |
M05PB0802S | 8" | 2" | 900 |

Rubber on Iron – RI
Bearing: Roller
Temperature Range:-45ºF to 180ºF
Hardness:75º Shore A +/- 5
Rubber tread that is vulcalized on a cast iron core. Good for towed applications or applications where your load requires extra cushioning.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05RI00402S | M05RI0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05RI0402S | 4" | 2" | 400 |
M05RI0502S | 5" | 2" | 400 |
M05RI0602S | 6" | 2" | 800 |
M05RI0802S | 8" | 2" | 850 |

Phenolic – PH
Bearing: Roller
Temperature Range:-65ºF to 250ºF cont, int. up to 300ºF
Hardness: Rockwell 102 E
Pressure molded from denim and canvas with phenolic resin additive. Non-marking and good load carrying capactiy. Cost-effective option for medium and heavy duty applications.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05PH0402S | M05PH0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05PH0402S | 4" | 2" | 800 |
M05PH0502S | 5" | 2" | 1,000 |
M05PH0602S | 6" | 2" | 1,200 |
M05PH0802S | 8" | 2" | 1,400 |

High Temp Phenolic – HT
Bearing: Roller
Temperature Range: -65ºF to 475ºF (intermittent up to 525ºF)
Hardness: Rockwell 102 E
High temp formulation of the classic - excels in dry heat applications only.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05HT0402S | M05HT0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05HT0402S | 4" | 2" | 800 |
M05HT0502S | 5" | 2" | 1,000 |
M05HT0602S | 6" | 2" | 1,200 |
M05HT0802S | 8" | 2" | 1,400 |

HeatEater – HE
Bearing: Roller
Temperature Range:-40ºF to 425ºF Continuous,475ºF to 550ºF Intermittent
Hardness:85º Shore D ± 5º
Proprietary blend of glasses and polymers, engineered for moist heat / steam cleaning. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05HE0402S | M05HE0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05HE0402S | 4" | 2" | 800 |
M05HE0502S | 5" | 2" | 1,000 |
M05HE0602S | 6" | 2" | 1,000 |
M05HE0802S | 8" | 2" | 1,100 |

Glass Filled Nylon – GF
Bearing: Roller
Temperature Range:-45ºF to 250ºF
Hardness:85º Shore D ± 5º
Nylon / polymer blend with fiberglass additives for added impact resistance. Non-marking.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05GF0402S | M05GF0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05GF0402S | 4" | 2" | 900 |
M05GF0502S | 5" | 2" | 1,000 |
M05GF0602S | 6" | 2" | 1,200 |
M05GF0802S | 8" | 2" | 1,400 |

Cast Iron – CI
Bearing: Roller
Temperature Range:-45ºF to 800ºF (High Temp Avail.)
Hardness: Brinell 145
Ductile cast iron construction with thick walls, high tensile strength of 45,000 PSI.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05CI0402S | M05CI0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05CI0402S | 4" | 2" | 1,500 |
M05CI0502S | 5" | 2" | 1,500 |
M05CI0602S | 6" | 2" | 2,000 |
M05CI0802S | 8" | 2" | 2,000 |

Cast Iron V-Groove – VG
Bearing: Roller
Temperature Range:-45ºF to 800ºF (High Temp Avail.)
Hardness: Brinell 145
Ductile cast iron construction with thick walls, high tensile strength of 45,000 PSI. Standard 90º machined v-groove.
NOTE: ADD SUFFIX FOR SWIVEL (S) OR RIGID (R) e.g. M05VG0402S | M05VG0402R
CASTER PART # | WHEEL DIAMETER | TREAD WIDTH | CAPACITY (LB) |
|---|---|---|---|
M05VG0402S | 4" | 2" | 1,500 |
M05VG0502S | 5" | 2" | 1,500 |
M05VG0602S | 6" | 2" | 1,500 |
