Stem #	ID of Tubing	Rubber Range ( smallest size to largest size )
ER9	3/4″	.720″ to .851″
ER27	7/8″	.852″ to .927″ fits 1″ O.D. 16 or 18 Gauge
ER28	1″	.928″ to 1.029″
ER7A	1 1/16″	1.020″ to 1.100″
ER29	1 1/8″	1.100″ to 1.180″
ER17	1 1/4″	1.178″ to 1.303″
ER25	1 3/8″	1.360″ to 1.425″
ER26	1 1/2″	1.426″ to 1.589″ fits 1 5/8″ O.D. 16 or 18 Gauge
ER21	1 13/16″	1.790″ to 1.850″

Dual Wheel Casters with DW Polyurethane Wheels Model 2-20

DW Polyurethane Wheels Features:

Each caster has two 1″ wide wheels which rotate independently and improve swivel rotation.
They are ergonomically designed to minimize the force required to initially start an object as well as the force required to keep it in motion.
They are made with high performance non-marking polyurethane tires. When used in this caster, the maximum recommended speed is 3 miles per hour.
They improve safety for your employees by reducing the risk of injury.
The heavy duty aluminum centers are equipped with extra large sealed precision ball bearings which require NO maintenance.

“You should never select on the basis of load capacity alone. There is no industry standard for load capacity ratings and they may not include a factor for abuse. Our capacity ratings are below what the casters are capable of carrying because most applications have less than perfect conditions. Please refer to the information shown at the bottom of this page. If you have any doubt as to which wheel or caster is the BEST choice for your application contact us for a recommendation. CALL US AT 800-501-3808”

Mounting Plate - 4" x 6 1/4"

Model 2-20 Caster Bracket

Capacity up to 2000 pounds per caster.

Swivel Construction - precision machined combination load and thrust bearing with heat treated raceway. No center pin.
Legs - 1/4" thick, welded inside and out.
Axle - 1/2'' diameter hollow bolt with lock nut.
Grease Fitting - for swivel.
Finish - external metal parts are zinc plated

When you make a value analysis, it is these features & benefits that, in our opinion, make this caster worth your investment.. The slightly higher initial cost is more than offset by its performance and long service life! Why invest in these casters? Because, day in, day out, week by week, and year by year the savings in operation pile up – maximum loads at minimum effort – no replacement for years. Try a set. You will be immediately amazed at the noticeable difference.

We suggest that you do NOT drill the mounting holes to attach the casters until you receive them. We do NOT include mounting Hardware.

This image is for Plate Size and Hole Placement ONLY. IT DOES NOT DEPICT THE ACTUAL PLATE.

You should never select on the basis of load capacity alone. Capacity ratings do not take into account the effort required to manually move a load. Capacity ratings are based on manual operation under ideal conditions. If these casters are going to be moved by mechanically powered equipment, consult us for a reduced capacity rating based on your application. If a human being has to move the weight, select the largest practical wheel diameter. If a caster failure occurs it is almost always because of misuse or abuse. It has been very rare that a product failed because of faulty material or poor workmanship. The following are examples of things that we do NOT want you to do:

1. Dragging the wheel sideways.
2. Shock or Impact caused by dropping the load instead of setting it down on the castered equipment.
3. Improper Installation such as:
A. Rigid casters not installed parallel to one another.
B. Swivel casters not installed parallel to the floor.
C. Using less than 4 bolts to attach the mounting plate.
D. Distortion of the swivel bearing when attaching the mounting plate due to welding improperly.
4. Exceeding the rated capacity of the wheel or caster.
5. Exceeding a rolling speed of 3 MPH.
6. The build up of heat caused by continuous operation causing tire separation.

Optional Features:

Swivel Lock:

Welded (SL4) – Locks Swivel, NOT wheel.

(Unlocked)

(Locked)

Welded (BSL4-FO) – Locks Swivel, NOT wheel.

(Foot Operated)

Long Lead Option:

Dual Wheel Casters with DW Polyurethane Wheels Model 2-20, Caster City

The Long Lead Option is standard on the 6″ and 8″ Swivel Casters. It improves swivel rotation and reduces swivel vibration.
The “Long Lead” option inceases the Swivel Radius to 5 1/2″ for the 6″ diameter wheels.
The “Long Lead” option inceases the Swivel Radius to 7 1/2″ for the 8″ diameter wheels.

Caster Chart

We do NOT include mounting Hardware.

Click on the Part Numbers for Pricing, Options and to ORDER.

Wheel Color	Hardness Range (Durometer)	Tread Shape	Wheel Size	MAX CAP. EACH CASTER LBS.	SWIVEL CASTER	RIGID CASTER	APPROX SWIVEL WEIGHT (LBS)	APPROX SWIVEL RADIUS	OVERALL HEIGHT
Black	70-75A	Flat	4″ x 2″	400	2-20DW4x2BK-S	2-20DW4x2BK-R	8	3 1/8″	5 5/8″
			5″ x 2″	500	2-20DW5x2BK-S	2-20DW5x2BK-R	10	3 3/4″	6 1/2″
			6″ x 2″	600	2-20DW6x2BK-S	2-20DW6x2BK-R	11	5 1/2″	7 1/2″
			8″ x 2″	700	2-20DW8x2BK-S	2-20DW8x2BK-R	13	7 1/2″	9 1/2″

Red	80-85A	Flat	4″ x 2″	500	2-20DW4x2RD-S	2-20DW4x2RD-R	8	3 1/8″	5 5/8″
			5″ x 2″	600	2-20DW5x2RD-S	2-20DW5x2RD-R	10	3 3/4″	6 1/2″
			6″ x 2″	700	2-20DW6x2RD-S	2-20DW6x2RD-R	11	5 1/2″	7 1/2″
			8″ x 2″	800	2-20DW8x2RD-S	2-20DW8x2RD-R	13	7 1/2″	9 1/2″

Blue	90-95A	Flat	4″ x 2″	600	2-20DW4x2BL-S	2-20DW4x2BL-R	8	3 1/8″	5 5/8″
			5″ x 2″	700	2-20DW5x2BL-S	2-20DW5x2BL-R	10	3 3/4″	6 1/2″
			6″ x 2″	800	2-20DW6x2BL-S	2-20DW6x2BL-R	11	5 1/2″	7 1/2″
			8″ x 2″	900	2-20DW8x2BL-S	2-20DW8x2BL-R	13	7 1/2″	9 1/2″

Gray	60-65D	Flat	4″ x 2″	700	2-20DW4x2GR-S	2-20DW4x2GR-R	7	3 1/8″	5 5/8″
			5″ x 2″	800	2-20DW5x2GR-S	2-20DW5x2GR-R	8	3 3/4″	6 1/2″
			6″ x 2″	900	2-20DW6x2GR-S	2-20DW6x2GR-R	9	5 1/2″	7 1/2″
			8″ x 2″	1000	2-20DW8x2GR-S	2-20DW8x2GR-R	10	7 1/2″	9 1/2″