50-51 Series Medium Heavy Duty Casters

50-51 Series Medium Heavy Duty Casters

  • "Cold froged" top plate, upper and lower raceways.
  • Double row ball bearing swivel raceway construction for extra strength.
  • Hardened Raceways.
  • Zerk fitting in swivel race for lubrication.
  • Finish: All parts except wheel are zinc plated for corrosion resistance.
  • Legs are formed and welded to upper race to increase strength
  • 5/8 Dia King pin, 1/2 Axle, 1/4 Plate & Leg Thickness.
  • Capacity: 350-1,000 lbs.
  • Excellent for medium heavy duty platform trucks, food service equipment, large stock carts, etc.




CASTER PART NUMBERWHEEL SPECIFICATIONCASTER SPECIFICATION
SWIVELRIGIDDIA.TREAD

WIDTH		TYPEBEARINGAXLE DIAOVERALL HEIGHTSWIVEL RADIUSLOAD CAPACITY
450-RCR451-RCR421/2 5-5/8 3-3/16
450-PCR451-PCR
450-PUR451-PUR
450-HPR451-HPR
450-PHR

451-PHR
450-CIR451-CIR800
450-VGR451-VGR700
450-GRR451-GRR350
450-RAR451-RARRubber/AluminumRoller1/25 5/83 9/16300
450-SPR451-SPRSolid Polyurethane900
450-PGNB451-PGNBPolyurethane/PlasticPR-BB800
550-RCR551-RCR52Rubber/Cast IronRoller1/26-1/23-7/8375
550-PCR551-PCRPolyurethane/

Cast Iron		Roller1000
550-PUR551-PURPolyurethane/PlasticRoller600
550-HPR551-HPRHeavy Duty PlasticRoller550
550-XHPR551-XHPRExtra Heavy /Duty PlasticRoller800
550-PHR551-PHRPhenolicRoller1000
550-CIR551-CIRSteelRoller1000
550-VGR551-VGRV-GrooveRoller1000
550-GRR551-GRRGray Rubber/PlasticRoller400
550-RAR551-RARRubber/AluminumRoller4 1/4375
550-SPR551-SPRSolid Polyurethane1000
550-PGNB551-PGNBPolyurethane/PlasticPR-BB900
650-RCR651-RCR621/2 7-1/2 4-37/64
650-PCR651-PCR
650-PUR651-PUR
650-HPR651-HPR
650-XHPR651-XHPR
650-PHR651-PHR
650-CIR651-CIR
650-VGR651-VGR
650-GRR651-GRR
650-RAR651-RARRubber/AluminumRoller4 1/2410
650-SPR651-SPRSolid Polyurethane1200
650-PGNB651-PGNBPolyurethane/PlasticPRBB1000
850-RCR851-RCR82Rubber/Cast IronRoller1/29-1/26500
850-PCR851-PCRPolyurethane/Cast IronRoller1000
850-PUR851-PURPolyurethane/PlasticRoller1000
850-HPR851-HPRHeavy Duty PlasticRoller800
850-XHPR851-XHPRExtra Heavy /Duty PlasticRoller1000
850-PHR851-PHRPhenolicRoller1000
850-CIR851-CIRSteelRoller1200
850-VGR851-VGRV-GrooveRoller1200
850-GRR851-GRRGray Rubber/PlasticRoller600
850-RAR851-RARRubber/AluminumRoller6 1/2500
850-SPR851-SPRSolid Polyurethane1250
850-PGNB851-PGNBPolyurethane/PlasticPRBB1000

Fastening Specification

FASTENING TYPEFASTENING SHAPEFASTENING CODE NOSPECIFICATION
TOP PLATE01Overall Size 4 x 4 1/2
TOP PLATE01Bolt Hole Spacing 2-5/8 x 3-5/8 to 3 x 3
TOP PLATE01Attaching Bolt Size 3/8
TOP PLATE02Overall Size 4-1/2 x 6-1/4
TOP PLATE02Bolt Hole Spacing 2-7/16 x 4-15/16 to 3-3/8 x 5-1/4
TOP PLATE02Attaching Bolt Size 1/2
TOP PLATE03Overall Size 5 x 5-1/2
TOP PLATE03Bolt Hole Spacing 4 x 4-1/8
TOP PLATE03Attaching Bolt Size 1/2
TOP PLATE04Overall Size 4 x 5
TOP PLATE04Bolt Hole Spacing 3 x 4 to 2-9/16 x 3-1/2 (Reverse slot Pattern)
TOP PLATE04Attaching Bolt Size 3/8 (Busse Basket Plate)

Accessories Options For 50 And 51 Series

ACCESSORIES CODEDESCRIPTION
VLBVertelock Brake
TGThread Guard
DWDouble Welded
SLSealed Swivel
SWL4-Position Swivel Lock
ZAZerk Axle
BBBall Bearing
RWRetainer Washer