52 Series Casters

MEDIUM DUTY CASTERS

RWM Caster’s 52 Series is manufactured from cold formed steel. This series is highly recommended for use in medium duty industrial caster applications.

FEATURES
Swivel SectionCold formed top plate, yoke and button are all heat treated to prevent brinelling, improve swivel action and increase service life. Load and thrust bearings are hardened and ground and rotate on hardened raceways. Top plate and legs are 1/4″ steel, legs formed for increased strength and continuously welded to yoke. All swivel sections are equipped with a lubrication fitting for field maintenance. RWM lubricates all swivel sections prior to shipment.
Kingpin3/4″ diameter rivet hydraulically compressed to increase strength of swivel section as compared to staking
CapacityUp to1400 lbs.
Axle1/2″ diameter drilled axle with lubrication fitting provided on 2″ casters to improve ease of lubrication
FinishZinc plated to protect against corrosion
Mounting Plate Size4-1/2″ x 6-1/2″ x 1/4″
Bolt Hole Spacing2-7/16″ x 4-15/16″, slotted to 3- 3/8″ x 5-1/4″
Mounting Bolt Diameter1/2″
APPLICATIONS
Movable racksCorrugated box trucks
Conveyor and drag line applicationsCaster mounted production jigs and fixtures
Utility trucksMaintenance carts
KINGPIN RACEWAY


Bearing Selection Guide

CAD Download Instructions

52-UPR-0620-S


STANDARD
42ST/RT
43ST/RT
OPTIONS
BRAKES
ICWBInstallable Face Contact Brake (2’ wide only)
MICWBMetal Installable Cam Wheel Brake
WBSide Wheel Brake (roller bearing only)
WWBWrap Around Wheel Brake
SWIVEL LOCKS
SLSwivel Lock
LUBRICATIONS
HTHigh Temperature Lubrication
LTLow Temperature Lubrication
KINGPIN, RACEWAYS, THREAD GUARDS, SEALS
KBNut and Bolt Kingpin
SRSealed Swivel Raceway
TGThread Guards
WSWheel Seals
FIFGField Installable Foot Guard

Wheel Diameter

Wheel Width

Capacity

Wheel Type

Overall Height

Roller Bearing

Ball Bearing

Plain Bearing

Swivel Lead

Approx Weight
4″1-1/2″1400Forged Steel5-3/4″52-FSR-0415-S52-FSC-0415-S1-13/32″8.8
4″2″350Performance TPR5-3/4″52-RPR-0420-R52-RPB-0420-R52-RPC-0420-S1-3/8″6.5
4″2″350Rubber on Iron5-3/4″52-RIR-0420-S52-RIC-0420-S1-3/8″8.1
4″2″400Signature5-3/4″52-SWR-0420-S52-SWB-0420-S52-SWC-0420-S1-3/8″6.2
4″2″500Polyolefin5-3/4″52-POR-0420-S52-POB-0420-S52-POC-0420-S1-3/8″6
4″2″600Urethane Polypropylene5-3/4″52-UPR-0420-S52-UPB-0420-S52-UPC-0420-S1-3/8″6.5
4″2″700Rubber on Aluminum5-3/4″52-RAB-0420-S-EHT1-3/8″6.5
4″2″700Solid Urethane5-3/4″52-MUB-0420-S1-3/8″6.2
4″2″700Urethane on Aluminum5-3/4″52-UAR-0420-S52-UAC-0420-S1-3/8″6.6
4″2″700Urethane on Iron5-3/4″52-UIR-0420-S52-UIC-0420-S1-3/8″8.2
4″2″800Cast Iron5-3/4″52-CIR-0420-S52-CIB-0420-S52-CIC-0420-S1-3/8″8.3
4″2″800Durastan5-3/4″52-DUR-0420-S52-DUB-0420-S52-DUC-0420-S1-3/8″6.4
4″2″800High Temp. Nylon5-3/4″52-HNR-0420-S1-3/8″5.8
4″2″800Pinnacle5-3/4″52-PNR-0420-S52-PNB-0420-S52-PNC-0420-S1-3/8″6
4″2″800V-Groove Iron5-3/4″52-VIR-0420-S52-VIC-0420-S1-3/8″8.5
4″2″1050GT5-3/4″52-GTB-0420-S1-3/8″6.4
4″2″1400Nylatron HD5-3/4″52-NYB-0420-S1-3/8″6.9
5″2″375Performance TPR7-1/4″52-RPR-0520-S52-RPB-0520-R52-RPC-0520-S1-13/16″7
5″2″400Rubber on Iron7-1/4″52-RIR-0520-S52-RIC-0520-S1-13/16″9.1
5″2″500Signature7-1/4″52-SWR-0520-S52-SWB-0520-S52-SWC-0520-S1-13/16″6.5
5″2″650Polyolefin7-1/4″52-POR-0520-S52-POB-0520-S52-POC-0520-S1-13/16″6.1
5″2″750Urethane Polypropylene7-1/4″52-UPR-0520-S52-UPB-0520-S52-UPC-0520-S1-13/16″7
5″2″800Rubber on Aluminum7-1/4″52-RAB-0520-S-EHT1-13/16″7.2
5″2″800V-Groove Iron7-1/4″52-VIR-0520-S52-VIC-0520-S1-13/16″9.9
5″2″1000Cast Iron7-1/4″52-CIR-0520-S52-CIB-0520-S52-CIC-0520-S1-13/16″9.6
5″2″1000Durastan7-1/4″52-DUR-0520-S52-DUB-0520-S52-DUC-0520-S1-13/16″6.9
5″2″1000High Temp. Nylon7-1/4″52-HNR-0520-S1-13/16″6.9
5″2″1000Pinnacle7-1/4″52-PNR-0520-S52-PNB-0520-S52-PNC-0520-S1-13/16″6.3
5″2″1000Solid Urethane7-1/4″52-MUB-0520-S1-13/16″6.5
5″2″1050Urethane on Aluminum7-1/4″52-UAR-0520-S52-UAC-0520-S1-13/16″7
5″2″1050Urethane on Iron7-1/4″52-UIR-0520-S52-UIC-0520-S1-13/16″9.2
5″2″1200GT7-1/4″52-GTB-0520-S1-13/16″6.9
5″2″1400Forged Steel7-1/4″52-FSR-0520-S52-FSC-0520-S1-13/16″10.8
5″2″1400Nylatron HD7-1/4″52-NYB-0520-S1-13/16″7.4
6″2″410Rubber on Iron7-3/4″52-RIR-0620-S52-RIC-0620-S1-13/16″9.5
6″2″525Performance TPR7-3/4″52-RPR-0620-S52-RPB-0620-R52-RPC-0620-S1-13/16″7
6″2″600Signature7-3/4″52-SWR-0620-S52-SWB-0620-S52-SWC-0620-S1-13/16″7.2
6″2″700Polyolefin7-3/4″52-POR-0620-S52-POB-0620-S52-POC-0620-S1-13/16″8
6″2″820Rubber on Aluminum7-3/4″52-RAB-0620-S-EHT1-13/16″9.5
6″2″900Urethane Polypropylene7-3/4″52-UPR-0620-S52-UPB-0620-S52-UPC-0620-S1-13/16″7
6″2″1000Omega7-3/4″52-UOR-0620-S52-UOB-0620-S1-13/16″10.5
6″2″1000V-Groove Iron7-3/4″52-VIR-0620-S52-VIC-0620-S1-13/16″11.2
6″2″1200Cast Iron7-3/4″52-CIR-0620-S52-CIB-0620-S52-CIC-0620-S1-13/16″11.2
6″2″1200Durastan7-3/4″52-DUR-0620-S52-DUB-0620-S52-DUC-0620-S1-13/16″8
6″2″1200High Temp. Nylon7-3/4″52-HNR-0620-S1-13/16″8
6″2″1200Pinnacle7-3/4″52-PNR-0620-S52-PNB-0620-S52-PNC-0620-S1-13/16″6.9
6″2″1200Solid Urethane7-3/4″52-MUB-0620-S1-13/16″7.2
6″2″1200Torus7-3/4″52-UAB-0621-S1-13/16″6.1
6″2″1230Urethane on Aluminum7-3/4″52-UAR-0620-S52-UAC-0620-S1-13/16″7.8
6″2″1230Urethane on Iron7-3/4″52-UIR-0620-S52-UIC-0620-S1-13/16″10.5
6″2″1400Forged Steel7-3/4″52-FSR-0620-S52-FSC-0620-S1-13/16″12.5
6″2″1400GT7-3/4″52-GTB-0620-S1-13/16″8
6″2-1/2″540Rubber on Iron7-3/4″52-RIR-0625-S1-13/16″13.8
6″2-1/2″1080Rubber on Iron-EHT7-3/4″52-RIR-0625-S-EHT1-13/16″13.8
6″2-1/2″1400Cast Iron7-3/4″52-CIR-0625-S1-13/16″15.1
6″2-1/2″1400Durastan7-3/4″52-DUR-0625-S1-13/16″10.8
6″2-1/2″1400Forged Steel7-3/4″52-FSR-0625-S1-13/16″19.5
6″2-1/2″1400Urethane on Iron7-3/4″52-UIR-0625-S1-13/16″17
6″2-1/2″1400V-Groove Iron7-3/4″52-VIR-0625-S1-13/16″17.2
8″2″500Rubber on Iron9-3/4″52-RIR-0820-S52-RIC-0820-S2-1/4″12.2
8″2″600Performance TPR9-3/4″52-RPR-0820-S52-RPB-0820-R52-RPC-0820-S2-1/4″9
8″2″700Signature9-3/4″52-SWR-0820-S52-SWB-0820-S52-SWC-0820-S2-1/4″8
8″2″800Polyolefin9-3/4″52-POR-0820-S52-POB-0820-S52-POC-0820-S2-1/4″7.7
8″2″1000Rubber on Aluminum9-3/4″52-RAB-0820-S-EHT2-1/4″12.2
8″2″1000Urethane Polypropylene9-3/4″52-UPR-0820-S52-UPB-0820-S52-UPC-0820-S2-1/4″9
8″2″1050V-Groove Iron9-3/4″52-VIR-0820-S52-VIC-0820-S2-1/4″15
8″2″1200Omega9-3/4″52-UOR-0820-S52-UOB-0820-S2-1/4″14.1
8″2″1400Cast Iron9-3/4″52-CIR-0820-S52-CIB-0820-S52-CIC-0820-S2-1/4″15.3
8″2″1400Durastan9-3/4″52-DUR-0820-S52-DUB-0820-S52-DUC-0820-S2-1/4″9.7
8″2″1400GT9-3/4″52-GTB-0820-S2-1/4″9.7
8″2″1400Pinnacle9-3/4″52-PNR-0820-S52-PNB-0820-S52-PNC-0820-S2-1/4″7.8
8″2″1400Solid Urethane9-3/4″52-MUB-0820-S2-1/4″8
8″2″1400Torus9-3/4″52-UAB-0821-S2-1/4″7.3
8″2″1400Urethane on Aluminum9-3/4″52-UAR-0820-S52-UAC-0820-S2-1/4″9.3
8″2″1400Urethane on Iron9-3/4″52-UIR-0820-S52-UIC-0820-S2-1/4″14.1
8″2-1/2″670Rubber on Iron9-3/4″52-RIR-0825-S2-1/4″17.8
8″2-1/2″1340Rubber on Iron-EHT9-3/4″52-RIR-0825-S-EHT2-1/4″17.8
8″2-1/2″1400Cast Iron9-3/4″52-CIR-0825-S2-1/4″19.7
8″2-1/2″1400Durastan9-3/4″52-DUR-0825-S2-1/4″13.1
8″2-1/2″1400Forged Steel9-3/4″52-FSR-0825-S2-1/4″29.6
8″2-1/2″1400Urethane on Iron9-3/4″52-UIR-0825-S2-1/4″18.8
8″2-1/2″1400V-Groove Iron9-3/4″52-VIR-0825-S2-1/4″20

To order a rigid caster, change the “S” to “R” in the model number. For example, 52-FSR-0620-R. To order a rig only, omit the blue letters. For example: 52-0620-S.Note:  (1.) For weight of Caster with brake add .24 pounds. (2.) For weight of Rigid Caster deduct .7 pounds. Dimensions shown are nominal. If precise dimensions are required, please consult your RWM Representative.