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SERIES 30 and 31 Medium Duty

FEATURES Finish - Bright Zinc Plating Swivel - Double ball bearing with hardened raceways for extra strength Dust Cover - Helps protect swivel bearings Construction - Heavy gauge cold rolled steel, formed for strength Axle - 3/8" diameter bolt with lock nut King Pin - 1/2" steel rivet, hydraulically upset Optional Accessories

Top Plate and Bolt Hole Specifications Suffix No. Overall  Size Bolt Hole  Spacing Bolt Hole  Size 1 2 3/8" x 3 5/8" 1 3/4" x 3"  1/4" 2 2 3/8" x 3 5/8" 1 3/4" x 3" 5/16" 3 3 1/8" x 4 1/8" 2 3/8" 3 7/16" 5/16" 4 4" x 4" 3" x 3" 3/8" 5 3 3/4" x 4 1/2" 2 5/8" x 3 5/8" to 3" x 3" 3/8"

Note: Please add proper suffix number for top plate size desired

Wheel				Cap.	Ld. Hgt.	Swivel Radius	CASTER ORDERING NUMBER		App Wgt.
Dia.	TW	Type	Brg.	lbs.	Ins.	Ins.	Series 30 Swivel	Series 31 Rigid	lbs.
2 1/2"	1 1/4"	Cushion Tread Rubber	Delrin	140	3 5/8	2 3/4	2 1/2-30-105	2 1/2-31-105	1 11/16
		Hard Tread Rubber	Delrin	210			2 1/2-30-106	2 1/2-31-106
		Polyolefin	Plain	210			2 1/2-30-513	2 1/2-31-513
3"	1 1/4"	Cushion Tread Rubber	Delrin	150	4 1/8	3	3-30-105	3-31-105	1 3/4
		Hard Tread Rubber	Delrin	220			3-30-106	3-31-106
		Cushion Tread Rubber	Ball	150			3-30-152	3-31-152
		Hard Tread Rubber	Ball	220			3-30-162	3-31-162
		Semi-Steel	Plain	300			3-30-120	3-31-120
		Polyolefin	Plain	250			3-30-521	3-31-521
	1 1/2"	Phenolic	Plain	300			3-30-121	3-31-121
		Phenolic	Roller	300			3-30-221	3-31-221
3 1/2"	1 1/4"	Cushion Tread Rubber	Delrin	160	4 5/8	3 1/4	3 1/2-30-105	3 1/2-31-105	2
		Hard Tread Rubber	Delrin	230			3 1/2-30-106	3 1/2-31-106
		Cushion Tread Rubber	Ball	160			3 1/2-30-452	3 1/2-31-452
		Hard Tread Rubber	Ball	230			3 1/2-30-462	3 1/2-31-462	2 3/16
		Polyolefin	Plain	250			3 1/2-30-513	3 1/2-31-513
		Rubber Tire	Ball	200			3 1/2-30-113	3 1/2-31-113
		Gray Rubber Tire	Ball	225			3 1/2-30-113G	3 1/2-31-113G
		Polyurethane Tire	Ball	250			3 1/2-30-113P	3 1/2-31-113P
		Advantage Donut	Delrin	225			3 1/2-30-314GD	3 1/2-31-314GD
		Advantage Flat	Delrin	250			3 1/2-30-314GF	3 1/2-31-314GF
		Advantage Donut	Ball	225			3 1/2-30-213GD	3 1/2-31-213GD
		Advantage Flat	Ball	250			3 1/2-30-213GF	3 1/2-31-213GF
		Poly Loc Gray	Ball	250			3 1/2-30-213G	3 1/2-31-213G
		Poly Loc Gray	Delrin	250			3 1/2-30-314G	3 1/2-31-314G
		Poly Loc Poly	Ball	250			3 1/2-30-213P	3 1/2-31-213P
		Semi-Steel	Plain	300			3 1/2-30-120	3 1/2-31-120
4"	1 1/4"	Cushion Tread Rubber	Delrin	170	5 1/8	3 1/2	4-30-105	4-31-105	2 3/8
		Hard Tread Rubber	Delrin	250			4-30-106	4-31-106
		Cushion Tread Rubber	Ball	170			4-30-452	4-31-452
		Hard Tread Rubber	Ball	250			4-30-462	4-31-462
		Rubber Tire	Ball	200			4-30-113	4-31-113	2 1/2
		Grey Rubber Tire	Ball	200			4-30-113G	4-31-113G
		Polyurethane Tire	Ball	275			4-30-113P	4-31-113P
		Advantage Donut	Delrin	250			4-30-314GD	4-31-314GD
		Advantage Flat	Delrin	300			4-30-314GF	4-31-314GF
		Advantage Donut	Ball	250			4-30-213GD	4-31-213GD
		Advantage Flat	Ball	300			4-30-213GF	4-31-213GF
		Poly Loc Grey	Ball	275			4-30-213G	4-31-213G
		Poly Loc Grey	Delrin	275			4-30-314G	4-31-314G
		Poly Loc Poly	Ball	275			4-30-213P	4-31-213P
		Polyolefin	Plain	275			4-30-513	4-31-513
		Semi-Steel	Plain	300			4-30-120	4-31-120
	1 1/2"	Phenolic	Plain	300			4-30-121	4-31-121
		Phenolic	Roller	300			4-30-221	4-31-221
5"	1 1/4"	Cushion Tread Rubber	Delrin	200	6 1/4	4	5-30-105	5-31-105	2 3/4
		Hard Tread Rubber	Delrin	280			5-30-106	5-31-106
		Conductive Rubber	Self-lube	200			5-30-105C	5-31-105C
		Neoprene	Delrin	200			5-30-105N	5-31-105N
		Grey Rubber	Delrin	200			5-30-105G	5-31-105G
		Cushion Tread Rubber	Ball	200			5-30-152	5-31-152
		Hard Tread Rubber	Ball	280			5-30-162	5-31-162
		Cushion Tread Rubber	Ball	200			5-30-452	5-31-452
		Hard Tread Rubber	Ball	280			5-30-462	5-31-462
		Rubber Tire	Ball	200			5-30-113	5-31-113	3
		Grey Rubber Tire	Ball	200			5-30-113G	5-31-113G
		Polyurethane Tire	Ball	300			5-30-113P	5-31-113P
		Advantage Donut	Delrin	250			5-30-314GD	5-31-314GD
		Advantage Flat	Delrin	325			5-30-314GF	5-31-314GF
		Advantage Donut	Ball	250			5-30-213GD	5-31-213GD
		Advantage Flat	Ball	325			5-30-213GF	5-31-213GF
		Poly Loc Grey	Ball	300			5-30-213G	5-31-213G
		Poly Loc Grey	Delrin	300			5-30-314G	5-31-314G
		Poly Loc Poly	Ball	300			5-30-213P	5-31-213P
		Polyolefin	Plain	300			5-30-513	5-31-513
		Polyolefin	Ball	300			5-30-514	5-31-514
		Semi-Steel	Plain	300			5-30-120	5-31-120
	1 1/2"	Phenolic	Plain	300			5-30-121	5-31-121
		Phenolic	Roller	300			5-30-221	5-31-221
6"	1 1/4"	Cushion Tread Rubber	Delrin	220	7 1/4	4 1/2	6-30-105	6-31-105	3 1/8
		Hard Tread Rubber	Delrin	300			6-30-106	6-31-106
		Conductive Rubber	Self-lube	220			6-30-105C	6-31-105C
		Neoprene	Delrin	220			6-30-105N	6-31-105N
		Cushion Tread Rubber	Ball	220			6-30-152	6-31-152
		Hard Tread Rubber	Ball	300			6-30-162	6-31-162
		Rubber Tire	Ball	250			6-30-113	6-31-113	3 3/4
		Grey Rubber Tire	Ball	250			6-30-113G	6-31-113G
		Polyurethane Tire	Ball	300			6-30-113P	6-31-113P
		Advantage Donut	Delrin	300			6-30-314GD	6-31-314GD
		Advantage Donut	Ball	300			6-30-213GD	6-31-213GD
		Poly Loc Grey	Ball	300			6-30-213G	6-31-213G
		Poly Loc Grey	Delrin	300			6-30-314G	6-31-314G
		Poly Loc Poly	Ball	300			6-30-213P	6-31-213P
	1 1/2"	Phenolic	Plain	300			6-30-121	6-31-121
		Phenolic	Roller	300			6-30-221	6-31-221
		Polyolefin	Plain	300			6-30-521	6-31-521