30-31 Series Light Medium Duty Casters

30-31 Series Light Medium Duty Casters

  • Heavily embossed, formed steel upper and lower cup.
  • Double ball race construction.
  • Raceways and yoke hardened for extra strength.
  • Dust cover helps protect swivel bearings.
  • Finish: Bright zinc or chrome plated.
  • Stock carts, bakery racks, food service equipment, etc.
  • Audio Equipment
CASTER PART NUMBERWHEEL SPECIFICATIONCASTER SPECIFICATION
SWIVELRIGIDDIA.TREAD WIDTHTYPEBEARINGAXLE DIAOVERALL HEIGHTSWIVEL RADIUSLOAD CAPACITY
330-SRP331-SRP31-1/4Soft RubberNylon3/84-1/42-3/4125
330-SRB331-SRBSoft RubberBall125
330-HRP331-HRPHard RubberNylon250
330-HRB331-HRBHard RubberBall250
330-LPP331-LPPLight Duty PlasticPlain220
330-HPP331-HPPHeavy Duty PlasticPlain250
330-PUP331-PUPPolyurethane/PlasticPlain220
330-PUB331-PUBPolyurethane/PlasticBall220
330-SPP331-SPPSolid PolyurethanePlain220
330-GRB31-GRBGray Rubber/PlasticAnnular220
330-CIP331-CIPSteelPlain250
3530-SRP3531-SRP3-1/21-1/4Soft RubberNylon3/84-11/163-1/16125
3530-HRP3531-HRPHard RubberNylon250
3530-HPP3531-HPPHeavy Duty PlasticPlain250
3530-PUB3531-PUBPolyurethaneBall250
3530-GRB3531-GRBGray Rubber/PlasticAnnular230
3530-GRAB3531-GRABGrey Rubber on AluminumAnnular225
430-SRP431-SRP41-1/4Soft RubberNylon3/85-1/23-5/16165
430-SRB431-SRBSoft RubberBall165
430-HRP431-HRPHard RubberNylon265
430-HRB431-HRBHard RubberBall265
430-LPP431-LPPLight Duty PlasticPlain225
430-HPP431-HPPHeavy Duty PlasticPlain265
430-PUB431-PUBPolyurethane/PlasticBall265
430-SPP431-SPPSolid PolyurethanePlain300
430-GRAB431-GRABGray Rubber on AluminumAnnular265
430-GRB431-GRBGray Rubber/PlasticAnnular250
430-CIP431-CIPSteelPlain350
530-SRP531-SRP51-1/4Soft RubberNylon3/86-3/164165
530-SRB531-SRBSoft RubberBall165
530-HRP531-HRPHard RubberNylon265
530-HRB531-HRBHard RubberBall265
530-LPP531-LPPLight Duty PlasticPlain225
530-HPP531-HPPHeavy Duty PlasticPlain300
530-PUB531-PUBPolyurethaneBall265
530-SPP531-SPPSolid PolyurethanePlain350
530-GRB531-GRBGray Rubber/PlasticAnnular265
530-GRAB531-GRABGrey Rubber on AluminumAnnular265

Fasteners For Series 30-31

FASTENING TYPECODEDESCRIPTIONSPECIFICATIONNOTES
TOP PLATE01Overall2-1/2 x 3-5/8
Hole Spacing1-3/4 x 2-15/16
Attaching Bolt Size5/16
02Overall3-1/8 x 4-3/32Swivels only
Hole Spacing2-3/8 x 3-7/8
Attaching Bolt Size5/16
Grip Ring Stem120.845 x 2-3/16Swivels only
Threaded Stem211/2-13 x 1Swivels only
221/2-13 x 1-1/2
231/2-13 x 2-3/16
Round Plain Stem317/8 x 1-3/4 without holeSwivels only
320.845 x 2-3/8 with 1/4 cross drill hole 1-5/16 up
Square Stem517/8 x 2Swivels only
527/8 x 2-1/2
Expanding Stems9Range.720 - .8513/4"
11Range.852 - .9277/8"
13Range.928 - 1.0291"
15Range1.030 - 1.1401 1/8"
19CRange1.360 - 1.4251 3/8"
19ARange1.426 - 1.5891 1/2"

Accessories Options For 30 And 31 Series

ACCESSORIES CODEDESCRIPTION
VLBVertelock Brake
TGThread Guard
ZAZerk Axle
SLSealed Swivel
CPChrome Platin
NINickel Plating