Call 888-458-9717

50-51 SERIES MEDIUM HEAVY DUTY CASTERS

Capacity: 350-1,000 lbs.

 

FASTENING SPECIFICATION

FASTENING TYPE
FASTERNING SHAPE
FASTENING CODE NO
SPECIFICATION

TOP PLATE 




01
Overall Size 4 x 4 1/2
Bolt Hole Spacing 2-5/8 x 3-5/8 to 3 x 3
Attaching Bolt Size 3/8
02
Overall Size 4-1/2 x 6-1/4
Bolt Holt Spacing 2-7/16 x 4-15/16 to 3-3/8 x 5-1/4
Attaching Bolt Size 1/2
03
Overall Size 5 x 5-1/2
Bolt Hole Spacing 4 x 4-1/8
Attaching Bolt Size 1/2
04
Overall Size 4 x 5
Bolt Hole Spacing 3 x 4 to 2-9/16 x 3-1/2 (Reverse slot Pattern)
Attaching Bolt Size 3/8 (Busse Basket Plate)

SPECIFICATIONS FOR 50 AND 51 SERIES

CASTER PART NUMBER
WHEEL SPECIFICATION
CASTER SPECIFICATION
SWIVEL
RIGID
DIA.
TREAD
WIDTH
TYPE
BEARING
AXLE DIA
OVERALL HEIGHT
SWIVEL RADIUS
LOAD CAPACITY
450-RCR
451-RCR
4
2
Rubber/Cast Iron
Roller
1/2
5-5/8
3-3/16
300
450-PCR
451-PCR
Polyurethane/
Cast Iron
Roller
800
450-PUR
451-PUR
Polyurethane/
Plastic
Roller
500
450-HPR
451-HPR
Heavy Duty Plastic
Roller
450
450-PHR
451-PHR
Phenolic

Roller

800
450-CIR
451-CIR
Steel
Roller
800
450-VGR
451-VGR
V-Groove
Roller
700
450-GRR
451-GRR
Gray Rubber/Plastic
Roller
350
450-RAR 451-RAR Rubber/Aluminum Roller 1/2 5 5/8 3 9/16 300
450-SPR 451-SPR Solid Polyurethane 900
450-PGNB 451-PGNB Polyurethane/Plastic PR-BB 800
550-RCR
551-RCR
5
2
Rubber/Cast Iron
Roller
1/2
6-1/2
3-7/8
375
550-PCR
551-PCR
Polyurethane/
Cast Iron
Roller
1000
550-PUR
551-PUR
Polyurethane/Plastic
Roller
600
550-HPR
551-HPR
Heavy Duty Plastic
Roller
550
550-XHPR
551-XHPR

Extra Heavy /Duty Plastic

Roller
800
550-PHR
551-PHR
Phenolic
Roller
1000
550-CIR
551-CIR
Steel
Roller
1000
550-VGR
551-VGR
V-Groove
Roller
1000
550-GRR
551-GRR
Gray Rubber/Plastic
Roller
400
550-RAR 551-RAR Rubber/Aluminum Roller 4 1/4 375
550-SPR 551-SPR Solid Polyurethane 1000
550-PGNB 551-PGNB Polyurethane/Plastic PR-BB 900
650-RCR
651-RCR
6
2
Rubber/Cast Iron
Roller
1/2
7-1/2
4-37/64
410
650-PCR
651-PCR
Polyurethane/Cast Iron
Roller
1000
650-PUR
651-PUR
Polyurethane/Plastic
Roller
800
650-HPR
651-HPR
Heavy Duty Plastic
Roller
650
650-XHPR
651-XHPR
Extra Heavy /Duty Plastic
Roller
800
650-PHR
651-PHR
Phenolic
Roller
1000
650-CIR
651-CIR
Steel
Roller
1200
650-VGR
651-VGR
V-Groove
Roller
1200
650-GRR
651-GRR
Gray Rubber/Plastic
Roller
500
650-RAR 651-RAR Rubber/Aluminum Roller 4 1/2 410
650-SPR 651-SPR Solid Polyurethane 1200
650-PGNB 651-PGNB Polyurethane/Plastic PRBB 1000
850-RCR
851-RCR
8
2
Rubber/Cast Iron
Roller
1/2
9-1/2
6
500
850-PCR
851-PCR
Polyurethane/Cast Iron
Roller
1000
850-PUR
851-PUR
Polyurethane/Plastic
Roller
1000
850-HPR
851-HPR
Heavy Duty Plastic
Roller
800
850-XHPR
851-XHPR
Extra Heavy /Duty Plastic
Roller
1000
850-PHR
851-PHR
Phenolic
Roller
1000
850-CIR
851-CIR
Steel
Roller
1200
850-VGR
851-VGR
V-Groove
Roller
1200
850-GRR
851-GRR
Gray Rubber/Plastic
Roller
600
850-RAR 851-RAR Rubber/Aluminum Roller 6 1/2 500
850-SPR 851-SPR Solid Polyurethane 1250
850-PGNB 851-PGNB Polyurethane/Plastic PRBB 1000

ACCESSORIES OPTIONS FOR 50 AND 51 SERIES

ACCESSORIES CODE
DESCRIPTION
VLB
TG
DW
SL
SWL
ZA
BB
RW 
Vertelock Brake
Thread Guard
Double Welded
Sealed Swivel
4-PositionSwivel Lock
Zerk Axle
Ball Bearing
Retainer Washer

 

PRINTABLE VERSION
Features
  • "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.
APPLICATIONS
  • Excellent for medium heavy duty platform trucks, food service equipment, large stock carts, etc.
contact
Call 888-458-9717
REQUEST A QUOTE
contact
10575 Bloomfield Street
Los Alamitos, CA 90720
Toll free: 888-458-9717
Applications
  • Air Cargo Industry
  • Automotive Industry
  • Food Service Industry
  • Material Handling Industry
  • Medical Equipment Industry
  • Waste Industry