Medium-Heavy duty Kingpin less casters 2" wide wheels 


Excellent for: Severe conditions such as tow lines, Industrial platform trucks, and anywhere where Economical handling of heavy loads, and casters that can take severe abuse is essential.

Features: STANDARD WITH A38H TOP PLATE
5 OPTIONAL PLATES AVAILABLE AT NO CHARGE!

  • KINGPIN - Kingpin free for the reduction of king pin failure, also reducing caster shimmy and shake for increased service life, easier swiveling, and the ability to handle shock forces.
  • RACEWAY - 2-3/4" Diameter thrust raceway.
  • BUSHING - Roller bearing with drilled and hardened steel spanner bushing & steel side washers.               
  • AXLE & NUT - 1/2" Zerk axle & lock nut
  • FINISH - Corrosion resistant bright zinc finish
  • LUBRICATION - Grease nipple in lower swivel raceway
  • LEGS - 1/4" Thick, welded

MEDIUM-HEAVY DUTY KINGPINFREE CASTERS

WHEEL

CASTER

PART NUMBERS

Dia.

Tread
Width

Bearing
Type

Load
Cap

Swivel
Radius

Overall
Height

Wheel 
Type

Swivel Number

Swivel
Price

Rigid
Number

Rigid
Price

4

2

Roller

370

3-1/4

5-5/8"

Rubber on steel

STO43-A38-MR-RB

 Call

RTO43-A38-MR-RB

 10.42

Roller

250

Soft Gray Elastomer

STO43-A38-INF-RB

 Call

RTO43-A38-INF-RB

10.37

Roller

500

Polyolefin

STO43-A38-PO-RB

 Call

RTO43-A38-PO-RB

 9.31

Roller

800

Moldon Poly

STO43-A38-MPU-RB

 Call

RTO43-A38-MPU-RB

 11.93

Roller

800

Moldon Urethane

STO43-A38-UR-RB

 Call

RTO43-A38-UR-RB

12.10

Roller

750

Reinforced Thermoplastic

STO43-A38-ALT-RB

Call

RTO43-A38-ALT-RB

 Call

Roller

650

Solid Poly

STO43-A38-U-RB

 Call

RTO43-A38-U-RB

 11.47

P. Ball

650

Solid Poly

STO43-A38-U-PB

 Call

RTO43-A38-U-PB

 15.84

Roller

800

Phenolic

STO43-A38-PH-RB

 Call

RTO43-A38-PH-RB

 9.45

Roller

800

Hi-Temp Phenolic

STO43-A38-HTPH-RB

Call

RTO43-A38-HTPH-RB

 16.10

Roller

1100

V-Groove

STO43-A38-VG-RB

 Call

RTO43-A38-VG-RB

 13.19

Roller

1100

Steel

STO43-A38-ST-RB

 Call

RTO43-A38-ST-RB

 10.37

5

2

Ball

350

4

6-1/2"

Cushion Rubber 

STO53-A38-BARG

 Call

RTO53-A38-BARG

26.63

Roller

275

Soft Gray Elastomer

STO53-A38-INF-RB

 Call

RTO53-A38-INF-RB

 11.26

Roller

470

Rubber on steel

STO53-A38-MR-RB

 Call

RTO53-A38-MR-RB

 10.72

Roller

650

Polyolefin

STO53-A38-PO-RB

 Call

RTO53-A38-PO-RB

 9.80

Roller

900

Moldon Poly

STO53-A38-MPU-RB

 Call

RTO53-A38-MPU-RB

 12.78

Roller

950

ALThanee

STO53-A38-ALT-RB

Call

RTO53-A38-ALT-RB

 8.76

Roller

800

Solid Poly

STO53-A38-U-RB

 Call

RTO53-A38-U-RB

 12.65

P. .Ball

800

Solid Poly 

STO53-A38-U-PB

 Call

RTO53-A38-U-PB

 17.03

P. .Ball

800

Solid Poly/ERGO

STO53-A38-UC-PB

 Call

RTO53-A38-UC-PB

 17.33

Roller

1000

Moldon Urethane

STO53-A38-UR-RB

 Call

RTO53-A38-UR-RB

 15.22

Roller

1000

Phenolic

STO53-A38-PH-RB

 Call

RTO53-A38-PH-RB

10.15

Roller

1000

Hi-Temp Phenolic

STO53-A38-HTPH-RB

 Call

RTO53-A38-HTPH-RB

 19.64

Roller

1400

V-Groove

STO53-A38-VG-RB

 Call

RTO53-A38-VG-RB

 15.33

Roller

1250

Steel

STO53-A38-ST-RB

 Call

RTO53-A38-ST-RB

 11.00

6

2

Ball

350

4-3/4

7-1/2"

Cushion Rubber

STO63-A38-BARG

 62.67

RTO63-A38-BARG

 44.71

Roller

450

Soft Gray Elastomer

STO63-A38-INF-RB

31.38 

RTO63-A38-INF-RB

 12.75

Roller

550

Rubber on steel

STO63-A38-MR-RB

 29.77

RTO63-A38-MR-RB

 11.79

Roller

600

Rubber on  Alum

STO63-A38-MAR-RB

 36.10

RTO63-A38-MAR-RB

 18.13

Roller

600

Poly on Alum

STO63-A38-MAU-RB

 41.31

RTO63-A38-MAU-RB

 23.34

Roller

750

Polyolefin

STO63-A38-PO-RB

 28.08

RTO63-A38-PO-RB

 10.11

Roller

1000

Moldon Poly

STO63-A38-MPU-RB

 32.39

RTO63-A38-MPU-RB

 14.43

Roller

1150

Althane

STO63-A38-ALT-RB

 27.70

RTO63-A38-ALT-RB

 9.74

Roller

950

Solid Poly

STO63-A38-U-RB

 32.02

RTO63-A38-U-RB

 14.06

P. Ball

950

Solid Poly 

STO63-A38-U-PB

 36.39

RTO63-A38-U-PB

 18.43

P. Ball

950

Solid Poly/ERGO

STO63-A38-UC-PB

 42.86

RTO63-A38-UC-PB

 24.30

Roller

1200

Moldon Urethane

STO63-A38-UR-RB

 34.09

RTO63-A38-UR-RB

 16.12

Roller

1500

V-Groove

STO63-A38-VG-RB

34.75

RTO63-A38-VG-RB

16.78

Roller

1400

Steel

STO63-A38-ST-RB

31.13

RTO63-A38-ST-RB

13.17

Roller

1200

Phenolic

STO63-A38-PH-RB

28.94

RTO63-A38-PH-RB

11.47

Roller

1200

Hi-Temp Phenolic

STO63-A38-HTPH-RB

42.55

RTO63-A38-HTPH-RB

24.59

8

2

Ball

450

6-1/4

9-1/2"

Cushion Rubber

STO83-A38-BARG

71.85

RTO83-A38-BARG

53.87

Roller

600

Soft Gray Elastomer 

STO83-A38-INF-RB

39.40

RTO83-A38-INF-RB

21.75

Roller

700

Rubber on Alum

STO83-A38-MAR-RB

41.80

RTO83-A38-MAR-RB

23.82

Roller

700

Rubber on steel

STO83-A38-MR-RB

32.48

RTO83-A38-MR-RB

14.50

Roller

800

Poly on Alum

STO83-A38-MAU-RB

41.98

RTO83-A38-MAU-RB

24.00

Roller

1000

Polyolefin

STO83-A38-PO-RB

30.51

RTO83-A38-PO-RB

12.53

Roller

1200

Moldon Poly

STO83-A38-MPU-RB

35.55

RTO83-A38-MPU-RB

17.57

Roller

1300

Althane

STO83-A38-ALT-RB

29.55

RTO83-A38-ALT-RB

11.56

Roller

1500

Moldon Urethane

STO83-A38-UR-RB

38.76

RTO83-A38-UR-RB

20.78

Roller

1300

Solid Poly

STO83-A38-U-RB

34.16

RTO83-A38-U-RB

16.17

P. Ball

1100

Solid Poly 

STO83-A38-U-PB

38.53

RTO83-A38-U-PB

20.55

P. Ball

1100

Solid Poly/ERGO

STO83-A38-UC-PB

44.19

RTO83-A38-UC-PB

26.19

Roller

1500

V-Groove

STO83-A38-VG-RB

45.32

RTO83-A38-VG-RB

27.34

Roller

1500

Crowned Steel

STO83-A38-SS-RB

34.60

RTO83-A38-SS-RB