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 1 Series

Capacities up to 145 lbs each

Series 1: Plate/Swivel & Rigid Casters (75 lbs)
Series 1: Grip Ring Stem Casters
Series 1: Expanding Adapter Stem Casters
Series 1: Square Stem Casters
Series 1: Plate/Swivel & Rigid Casters (145 lbs)

Series 1: Top Plate, Swivel & Rigid Casters

Large Top Plate
Model Shown

 Features
· Zinc Plated Finish
· Double Ball Hardened Raceways
· 5/16" Nut & Bolt Axle
· Multi-Temperature Lube
Options
Brakes
Thread Guards
NSF Listed

Capacity up to 75 lbs each. Small Top Plate Models

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per
Caster
(Lbs.)

Wheel

Bearing

Model Number

Approx.
Wt.
Each
(Lbs.)

Load
Height
(Inches)

Swivel
Radius
(Inches)

Swivel

Rigid

1-5/8

7/8

60

Performa Rubber

Delrin

1-1666-441

1-1610-441

3/8

2-9/16

1-3/4

75

Polyolefin

1-1666-52

1-1610-52
 

2

7/8

75

Performa Rubber

Delrin

1-2266-441

1-2210-441

1/2

2-3/4

1-15/16

Polyolefin

1-2266-52

1-2210-52

Hard Rubber

Ball

1-2266-55

1-2210-55

Capacity up to 75 lbs each. Large Top Plate Models

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per
Caster
(Lbs.)

Wheel

Bearing

Model Number

Approx.
Wt.
Each
(Lbs.)

Load
Height
(Inches)

Swivel
Radius
(Inches)

Swivel

Rigid

1-5/8

7/8

60

Performa Rubber

Delrin

1-1656-441

–

1/2

2-9/16

1-3/4

75

Polyolefin

1-1656-52

–
 

2

7/8

75

Performa Rubber

Delrin

1-2256-441

–

1/2

2-3/4

1-15/16

Polyolefin

1-2256-52

–

Hard Rubber

Ball

1-2256-55

–

5/8
 

3

7/8

75

Performa Rubber

Delrin

1-3056-441

1-3010-441

3/4

3-7/8

2-9/16

Polyurethane Hi-
Tech

1-3056-91

1-3010-91

Polyolefin

1-3056-53

1-3010-53
Small Top Plate (Swivel)
Top Plate 1-7/32" x 2"
Bolt hole centers
13/16" x 1-9/16"
Bolt Size 13/64" diameter		 Small Top Plate (Rigid)
Top Plate 1-1/4" x 3-1/4"
Bolt hole centers
2 holes: 5/8" x 2-1/2"
Bolt Size 17/64" diameter		 Large Top Plate
Top Plate 1-3/4" x 3"
Bolt hole centers
1" x 2-1/4"
Bolt Size 17/64" diameter

Forked Leg Spacing: 1-5/32"

Series 1: Grip Ring Stem Caster
Features
· Zinc Plated Finish
· Double Ball Hardened Raceways
· 5/16" Nut & Bolt Axle
Options
Brakes
Thread Guards
NSF Listed

Capacity up to 75 lbs each.

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per Caster
(Lbs.)

Wheel

Bearing

Model Number

Approx
Wt. Each
(Lbs.)

Load
Height
(Inches)

Swivel
Radius
(Inches)

Swivel

1-5/8

7/8

60

Performa Rubber

Delrin

1-1651-441

1/2

2-1/2

1-3/4

75

Polyolefin

1-1651-52
 

2

7/8

75

Performa Rubber

Delrin

1-2251-441

1/2

2-11/16

1-15/16

Polyolefin

1-2251-52

Hard Rubber

Ball

1-2251-55

5/8
 

3

7/8

75

Performa Rubber

Delrin

1-3051-441

3/4

3-13/16

2-9/16

Polyurethane Hi-
Tech

1-3051-91

Polyolefin

Ball

1-3051-53
Stem Sizes
Standard grip ring stem is 1-9/16"
long with diameters from 3/8" to
7.8". Select diameter size and specify
by code number when ordering.
MTG1: 3/8" x 1-9/16"
MTG2: 7/16" x 1-9/16"
MTG50: 7/16" x 1" long
MTG51: 7/16" x 1-29/32" long
               less grip ring
MTG52: 7/16" x 1-29/32" long
              with grip ring		 Plastic Adapters
Snaps easily  in place to reduce
distortion and damage to equipment
tubing. Four sizes fit most
tubular furniture and equipment.
Used only on MTG51 stem.
For more information, consult
factory

Forked Leg Spacing: 1-5/32"

Series 1: Expanding Adapter Casters
Features
· Zinc Plated Finish
· Double Ball Hardened Raceways
· 5/16" shouldered axle with 1/4" nut
· Multi-Temperature Lube
Options
Brakes
Thread Guards
NSF Listed

Capacity up to 145 lbs each.

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per Caster
(Lbs.)

Wheel

Bearing

Model Number

Approx
Wt. Each
(Lbs.)

Load
Height
(Inches)

Swivel
Radius
(Inches)

Swivel

3

7/8

100

Polyurethane Hi-
Tech

Delrin

1-3367-91

 1-1/8

4

2-13/16

125

Perform Rubber

1-3367-441

1-1/4

Polyolefin

1-3367-53
 

4

7/8

 125

Polyurethane Hi-
Tech

Delrin

1-4367-91

1-1/2

5-1/16

3-7/16

135

Perform Rubber

1-4367-441

Polyolefin

1-4367-53
 

5

7/8

 140

Polyurethane Hi-
Tech

Delrin

1-5367-91

1-3/4

6-1/16

4-1/16

145

Perform Rubber

1-5367-441

Polyolefin

1-5367-53

Turning of hex nut expands rubber adapter inside round or square tubing for a tight, permanent fit. To order, select caster model number and specify stem adapter size by mounting number from chart below.

Inside Diameter of Tube

Mounting Number

Round Tubing

Square Tubing

3/4" to 13/16"

MTG40

–

7/8" to 15/16"

MTG41

MTG51

1" to 1-1/16"

MTG42

MTG52

1-1/8" to 1-3/16"

MTG43

MTG53

1-1/4" to 1-5/16"

MTG44

MTG54

1-3/8" to 1-7/16"

MTG45

MTG55

1-1/2" to 1-9/16"

MTG46

–

1-5/8" to 1-11/16"

MTG47

–

Forked Leg Spacing: 1-5/32"

Series 1: Square Stem Casters
Features
· Zinc Plated Finish
· Double Ball Hardened Raceways
· 5/16" shouldered axle with 1/4" nut
· Multi-Temperature Lube
Options
Brakes
Thread Guards
NSF Listed

Capacity up to 145 lbs each.

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per Caster
(Lbs.)

Wheel

Bearing

Model Number

Approx
Wt. Each
(Lbs.)

Load
Height
(Inches)

Swivel
Radius
(Inches)

Swivel

3

7/8

100

Polyurethane Hi-
Tech

Delrin

1-3370-91

1-1/4

3-3/4

2-13/16

125

Perform Rubber

1-3370-441

Polyolefin

1-3370-53
 

4

7/8

 125

Polyurethane Hi-
Tech

Delrin

1-4370-91

1-1/2

4-3/4

3-7/16

135

Perform Rubber

1-4370-441

Polyolefin

1-4370-53
 

5

7/8

 140

Polyurethane Hi-
Tech

Delrin

1-5370-91

1-3/4

5-3/4

4-1/16

145

Perform Rubber

1-5370-441

Polyolefin

1-5370-53
Square Stems
Designed for easy mounting on inside of angle iron legs or against flat surfaces. Stems may be bolted,
riveted or welded against any flat verticle surface. Standard stem is 3/4" square with 3 mounting
holes 17/64" diameter.

Forked Leg Spacing: 1-5/32"

Series 1: Top Plate, Swivel & Rigid Casters
Features
· Zinc Plated Finish
· Double Ball Hardened Raceways
· 5/16" Nut & Bolt Axle
· .090" Steel Top Plate
· Multi-Temperature Lube
Options
Brakes
Thread Guards
NSF Listed

Capacity up to 145 lbs each.

Wheel
Diameter
(Inches)

Tread
Width
(Inches)

Capacity
Per Caster