20 Series

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20 SERIES LIGHT MEDIUM DUTY CASTERS


Heavy embossed, formed steel double cup. Double row ball bearing swivel raceway. Bright zinc or chrome plated finish. Octal Top Raceway is available.

FASTENING SPECIFICATIONS
FASTENING TYPE	FASTENING SHAPE	CODE NO	SPECIFICATIONS
TOP PLATE		A1	OVERALL SIZE : 2-3/8X3-5/8 BOLT HOLE SPACING : 1-3/4X2-11/16 to 2-15/16 ATTACHING BOLT SIZE : 5/16
		A2	OVERALL SIZE : 3-1/8X4-1/8 BOLT HOLE SPACING : 1-3/4X2-15/16 to 2-3/8X3-3/8 ATTACHING BOLT SIZE : 3/8
		A3	OVERALL SIZE : 3-15/16X4-1/2 BOLT HOLE SPACING : 2-5/8X3-5/8 TO 3X3 ATTACHING BOLT SIZE : 3/8
THREADED STEM		B1	1/2xUNC13x1
		B2	1/2xUNC13x1-1/2
		B3	5/8xUNC11x1-1/4
		B4	1/2xUNC13x2
		B5	1/2xUNC20x3
		B6	7/16xUNC14x7/8
		B7	1/2xUNC13x2-1/2(Can be used with Exp Applicator)
		B8	7/16xUNC14x1-1/2
		B9	1/2xUNC13x3
		B11	1/2xUNC13x3/4
		B16	5/8xUNC11x1-1/2
		B17	3/4xUNC10x1-1/2
		B18	3/4xUNC10x1
GRIP RING STEM		D1	7/16x1-1/2
GRIP RING STEM		D2	27/32x2-1/2
ROUND STEM		E1	7/8x2-3/32 with 5/16 Cross Drilled hole 1-1/8 from top of the upper cup.
		E2	1x2-1/4 with 5/16 Cross Drilled hole 1-7/16 from top of the upper raceway.
		E3	1x2-1/2(3/8") with 3/8 Cross Drilled hole 1-7/64 from top of the upper raceway.
OCTAGON STEM		F1	27/32x2-7/16 with 1/4 Cross Drilled hole located at 1/2, 1-1/8, 1-3/4 1-1/8 from top of the raceway.

ACCESSORIES OPTIONS

ACCESSORIES CODE

DESCRIPTION

STS

TOP LOCK BRAKE

THREAD GUARD

SEALED SWIVEL

CHROME PLATING

BLACK OXIDE PLATING

NICKEL PLATING

ZERK AXLE

STAINLESS STEEL YOKE

20 SERIES SPECIFICATIONS
CASTER PART NUMBER		WHEEL SPECIFICATION					CASTER SPECIFICATION
SWIVEL	RIGID	DIA	TREAD WIDTH	TYPE	BEARING	AXLE DIA	OVERALL HEIGHT	SWIVEL RADIUS	LOAD CAPACITY
20 30 S A1 SR 20 30 S A1 SBB 20 30 S A1 HR 20 30 S A1 HBB 20 30 S A1 LP 20 30 S A1 HP 20 30 S A1 PU 20 30 S A1 PB 20 30 S A1 INF 20 30 S A1 PH 20 30 S A1 SS	20 30 R A1 SR 20 30 R A1 SBB 20 30 R A1 HR 20 30 R A1 HBB 20 30 R A1 LP 20 30 R A1 HP 20 30 R A1 PU 20 30 R A1 PB 20 30 R A1 INF 20 30 R A1 PH 20 30 R A1 SS	3	1-1/4	SOFT RUBBER SOFT RUBBER HARD RUBBER HARD RUBBER LIGHT DUTY PLASTIC HEAVY DUTY PLASTIC POLYURETHANE POLYURETHANE INFINITE PHENOLIC STEEL	NYLON BALL NYLON BALL PLAIN PLAIN PLAIN BALL/DELRIN ANNULAR/DELRIN STEEL BUSHING PLAIN	3/8	4-1/4	3	125 125 220 220 220 300 220 240 220 250 250
20 35 S A1 SR 20 35 S A1 HR 20 35 S A1 HP 20 35 S A1 PB 20 35 S A1 INF 20 35 S A1 RA	20 35 R A1 SR 20 35 R A1 HR 20 35 R A1 HP 20 35 R A1 PB 20 35 R A1 INF 20 35 R A1 RA	3-1/2	1-1/4	SOFT RUBBER HARD RUBBER HEAVY DUTY PLASTIC POLYURETHANE INFINITE GRAY RUBBER ON ALUMINUM	NYLON NYLON PLAIN BALL/DELRIN ANNULAR/DELRIN ANNULAR	3/8	4-1/2	3	130 225 300 260 250 220
20 40 S A1 SR 20 40 S A1 SBB 20 40 S A1 HR 20 40 S A1 HBB 20 40 S A1 LP 20 40 S A1 HP 20 40 S A1 PB 20 40 S A1 INF 20 40 S A1 SS 20 40 S A1 RA 20 40 S A1 PH 20 40 S A1 HTP	20 40 R A1 SR 20 40 R A1 SBB 20 40 R A1 HR 20 40 R A1 HBB 20 40 R A1 LP 20 40 R A1 HP 20 40 R A1 PB 20 40 R A1 INF 20 40 R A1 SS 20 40 R A1 RA 20 40 R A1 PH 20 40 R A1 HTP	4	1-1/4	SOFT RUBBER SOFT RUBBER HARD RUBBER HARD RUBBER LIGHT DUTY PLASTIC HEAVY DUTY PLASTIC POLYURETHANE INFINITE STEEL GRAY RUBBER ON ALUMINUM PHENOLIC HIGH TEMPERATURE	NYLON BALL NYLON BALL PLAIN PLAIN BALL/DELRIN ANNULAR/DELRIN PLAIN ANNULAR STEEL BUSHING PLAIN	3/8	5-1/8	3-1/2	165 165 265 265 275 275 280 300 300 240 300 240
20 50 S A1 SR 20 50 S A1 SBB 20 50 S A1 HR 20 50 S A1 HBB 20 50 S A1 LP 20 50 S A1 HP 20 50 S A1 PB 20 50 S A1 INF 20 50 S A1 RA 20 50 S A1 PH 20 50 S A1 HTP	20 50 R A1 SR 20 50 R A1 SBB 20 50 R A1 HR 20 50 R A1 HBB 20 50 R A1 LP 20 50 R A1 HP 20 50 R A1 PB 20 50 R A1 INF 20 50 R A1 RA 20 50 R A1 PH 20 50 R A1 HTP	5	1-1/4	SOFT RUBBER SOFT RUBBER HARD RUBBER HARD RUBBER LIGHT DUTY PLASTIC HEAVY DUTY PLASTIC POLYURETHANE INFINITE GRAY RUBBER ON ALUMINUM PHENOLIC HIGH TEMPERATURE	NYLON BALL NYLON BALL PLAIN PLAIN BALL/DELRIN ANNULAR/DELRIN ANNULAR STEEL BUSHING PLAIN	3/8	6-5/32	4	175 175 300 300 300 320 300 265 265 320 300

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