51 SERIES SUPER HEAVY DUTY CASTERS
OVERALL SIZE : 4-1/2x6-1/4
BOLT HOLE SPACING : 2-7/16x4-15/16 to 3-3/8x5-1/4
ATTACHING BOLT SIZE : 1/2
CASTER PART NUMBER
WHEEL SPECIFICATION
CASTER SPECIFICATION
SWIVEL
DIA
TREAD WIDTH
TYPE
BEARING
AXLE DIA
OVERALL HEIGHT
SWIVEL RADIUS
LOAD CAPACITY
51 50 S ** RC
51 50 S ** PC
51 50 S ** PU
51 50 S ** HP
51 50 S ** XHP
51 50 S ** PH
51 50 S ** SS
51 50 S ** VG
51 50 R ** RC
51 50 R ** PC
51 50 R ** PU
51 50 R ** HP
51 50 R ** XHP
51 50 R ** PH
51 50 R ** SS
51 50 R ** VG
RUBBER/CAST IRON
POLYURETHANE/CAST IRON
POLYURETHANE/PLASTIC
HEAVY DUTY PLASTIC
EXTRA HEAVY DUTY PLASTIC
PHENOLIC
STEEL
V-GROOVE
ROLLER
375
1000
770
650
900
800
51 60 S ** RC
51 60 S ** PC
51 60 S ** PU
51 60 S ** HP
51 60 S ** XHP
51 60 S ** PH
51 60 S ** SS
51 60 S ** VG
51 60 R ** RC
51 60 R ** PC
51 60 R ** PU
51 60 R ** HP
51 60 R ** XHP
51 60 R ** PH
51 60 R ** SS
51 60 R ** VG
450
1200
700
51 80 S ** RC
51 80 S ** PC
51 80 S ** PU
51 80 S ** HP
51 80 S ** XHP
51 80 S ** PH
51 80 S ** SS
51 80 S ** VG
51 80 R ** RC
51 80 R ** PC
51 80 R ** PU
51 80 R ** HP
51 80 R ** XHP
51 80 R ** PH
51 80 R ** SS
51 80 R ** VG
500
1400
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