21 Series Medium-Duty Caster – 8″ (203.2 mm), 1250 lbs. (567 kg.), Urethane, Rigid, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
21 Series Medium-Duty Caster – 8″ (203.2 mm), 1250 lbs. (567 kg.), Urethane, Swivel, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
21 Series Medium-Duty Caster – 8″ (203.2 mm), 600 lbs. (272 kg.), Thermoplastic Rubber, Rigid, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
21 Series Medium-Duty Caster – 8″ (203.2 mm), 600 lbs. (272 kg.), Thermoplastic Rubber, Swivel, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
21 Series Medium-Duty Caster – 8″ (203.2 mm), 900 lbs. (408 kg.), Polypropylene, Rigid, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
21 Series Medium-Duty Caster – 8″ (203.2 mm), 900 lbs. (408 kg.), Polypropylene, Swivel, Steel, 2″ (50.8 mm), 2-5/8″ x 3-5/8″ (67 mm x 92 mm) – 3″ x 3″ (76 mm x 76 mm), 3/8″ (9.52 mm), 4″ x 4-1/2″ (102 mm x 114 mm)
Blue Caster – 3-1/8″ (79.5 mm), 250 lbs. (113 kg.), Nylon, Swivel with Brake, Steel, 1-1/4″ (31.75 mm), 3-5/32″ x 2-3/8″ (80 mm x 60 mm), 11/32″ (9 mm), 3-3/8″ x 4″ (86 mm x 102 mm)
Blue Caster – 3-1/8″ (79.5 mm), 250 lbs. (113 kg.), Rubber, Swivel, Steel, 1-1/4″ (31.75 mm), 3-5/32″ x 2-3/8″ (80 mm x 60 mm), 11/32″ (9 mm), 3-3/8″ x 4″ (86 mm x 102 mm)
Blue Caster – 6″ (152.4 mm), 770 lbs. (349 kg.), Rubber, Swivel with Brake, Steel, 2″ (50.8 mm), 4-1/8″ x 3″ (105 mm x 76 mm), 7/16″ (11 mm), 4-1/4″ x 5-1/2″ (108 mm x 140 mm)
Blue Caster – 6″ (152.4 mm), 770 lbs. (349 kg.), Rubber, Swivel, Steel, 2″ (50.8 mm), 4-1/8″ x 3″ (105 mm x 76 mm), 7/16″ (11 mm), 4-1/4″ x 5-1/2″ (108 mm x 140 mm)
Blue Caster – 8″ (203.2 mm), 770 lbs. (349 kg.), Rubber, Swivel with Brake, Steel, 2″ (50.8 mm), 4-1/8″ x 3″ (105 mm x 76 mm), 7/16″ (11 mm), 4-1/4″ x 5-1/2″ (108 mm x 140 mm)
Caster – 2″ (51 mm), 110 lbs. (50 kg.), Thermoplastic Rubber, Swivel with Brake, Steel, 3/4″ (19 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) to 1-8/9 x 1-8/9 (48 mm x 48 mm), 17/64″ (6.74 mm)
Caster – 2″ (51 mm), 110 lbs. (50 kg.), Thermoplastic Rubber-Elastomer, Rigid, Stainless Steel, 3/4″ (19 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) – 1-7/8″ x 1-7/8″ (48 mm x 48 mm), 1/4″ (6.35 mm), 2-3/8″ x 2-3/8″ (60 mm x 60 mm)
Caster – 2″ (51 mm), 110 lbs. (50 kg.), Thermoplastic Rubber-Elastomer, Rigid, Stainless Steel, 3/4″ (19 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) – 1-7/8″ x 1-7/8″ (48 mm x 48 mm), 1/4″ (6.35 mm), 2-3/8″ x 2-3/8″ (60 mm x 60 mm)
Caster – 2″ (51 mm), 110 lbs. (50 kg.), Thermoplastic Rubber-Elastomer, Swivel, Stainless Steel, 3/4″ (19 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) – 1-7/8″ x 1-7/8″ (48 mm x 48 mm), 1/4″ (6.35 mm), 2-3/8″ x 2-3/8″ (60 mm x 60 mm)
Caster – 2″ (51 mm), 110 lbs. (50 kg.), Thermoplastic Rubber-Elastomer, Swivel, Stainless Steel, 3/4″ (19 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) – 1-7/8″ x 1-7/8″ (48 mm x 48 mm), 1/4″ (6.35 mm), 2-3/8″ x 2-3/8″ (60 mm x 60 mm)
Caster – 3″ (76 mm), 165 lbs. (75 kg.), Thermoplastic Rubber-Elastomer, Rigid, Stainless Steel, 1″ (25.4 mm), 1-1/2″ x 1-1/2″ (38 mm x 38 mm) – 1-7/8″ x 1-7/8″ (48 mm x 48 mm), 1/4″ (6.35 mm), 2-3/8″ x 2-3/8″ (60 mm x 60 mm)