Semi Steel Cast Iron Swivel Grip Ring Stem Caster w/Roller Bearings Set of 4 - 3" x 1.5" Silver Wheels and 7/16" Stems -Includes 2 with Top Locking Brake-1200 lbs Total Capacity - Service Caster Brand

Details

Manufacturer

Service Caster

Model

Series #20

SKU

SCC-GR20S315-SSR-TLB-716138-2-S-2

Condition

new

Quantity

4

UPC

734005094749

Harmonized code

8302.20.0000

Dimensions (L x W x H)

8 x 8 x 8 in

Shipping weight

12 lb

Posted

Sep 17, 2026, 7:00 PM CDT

Specifications

Capacity

1200

Color

4 Swivel w/2 Top Lock Brakes

Feature

Top lock brake

Heat Capacity

-45 degrees F to 600 degrees F

Item Dimension Unit of Measure

inches

Item Weight Unit of Measure

pounds

Load Height

4-1/8"

Locking Type

Top lock brake

Lower Temperature

-45

Lower Temperature UofM

F

Material Type

Semi Steel Cast Iron

Maximum Temperature

600

Maximum Temperature UofM

F

Mounting Height

4-1/8"

Mounting Type

Grip Ring Stem

Plating/Coating

Bright Zinc Plated Finish

Casters Mounting Method

Stem

Locking Castersor Wheels

Yes

Swivels

Yes

Size

3" Wheel

Stem

7/16" x 1-3/8" Grip Ring Stem

Stem Diameter

7/16"

Stem Length

1-3/8"

Stem Length UofM

inches

Stem Type

Grip Ring Stem

Tread Width

1.5

Tread Width UofM

inches

Type

(2) Swivel casters & (2) swivel casters w/top lock brakes

Wheel Bearing

Roller Bearing

Wheel Diameter

3

Wheel Diameter UofM

inches

Wheel Material

Semi Steel Cast Iron

Wheel Size

3" x 1-1/2"

Wheel Type

Semi Steel Cast Iron

Description

Listing is for a set of four (4) Service Caster Series #20 casters, two (2) swivel 7/16" grip ring stem with brake casters and two (2) swivel casters, with 3” diameter by 1-1/2” wide semi steel cast iron wheels. Supports a total weight of 1,200lbs (300lbs/per caster). When searching for a reliable and durable solution to your caster needs, consider Service Caster’s Series 20 roller bearing semi-steel cast iron casters. The Service Caster Series #20 is ideal for light and medium duty material handling, carts, equipment, and shop projects. The zinc plated finish provides durability under any condition, while the semi-steel wheels are abrasion resistant and rugged, maintaining effortless rolling under heavier loads, and provides a cost-effective solution over steel wheels. The roller bearing is capable of carrying greater loads while also providing smoother rolling motion. It has a split outer race shell into which the roller assembly is inserted. Combination seal/thrust retainer washers protect the bearing from dirt, water, and chemicals. They also help absorb thrust friction (Note: roller bearing must be used with hardened spanner bushing or hardened shaft). Mounting options include top plate, bolt hole, grip ring stem, standard and metric threaded stem sizes. Service Caster is unsurpassed in quality, reliability, and excellent customer service. Count on us to move you forward. • These Service Caster Series #20 Semi Steel Cast Iron casters offer various wheel sizes and mounting heights: 3” Wheel: 4-1/8” mounting height; 4” Wheel: 5-1/8” mounting height; 5” Wheel: 6-1/8” mounting height. • Weight Capacity: 3", 4", and 5": 300 lbs Capacity/Caster • All casters feature a 7/16” diameter by 1-3/8” long grip ring stem. Service Caster recommends using a drill or hardware gauge, a 7/16” wrench, or our paper wrap method to ensure the grip ring stem diameter needed is 7/16”. Paper Wrap Method: take a small strip of paper and wrap it around the stem. Mark the paper with a pen where it overlaps, keep the wrap tight. Measure the strip from the start of the wrap to the mark. The ruler should measure 1-3/8". Don’t see the size you need? Call us! • Brake options include a top lock brake, a total lock brake, or a posi lock brake. The top lock brake places a positive locking force against the wheel tread locking the wheel only. The total lock brake simultaneously locks the wheel and the swivel for a complete stationary position. The posi lock brake places a positive locking force against the wheel tread similar to the top lock brake, but the pedal is located above the wheel tread rather than on the side of the wheel.