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Medium Heavy Duty Casters

52-UPR-0620-S
52-UPR-0620-S
52-SWB-0620-R
52-SWB-0620-R
Top Plates
Standard Top Plate
Standard Top Plate
Optional 43ST/43RT
Optional 43ST/43RT

Swivel Sections and Cross Sections
Swivel Cross Section
Swivel Cross Section
Rivet Cross Section
Rivet Cross Section
RWM Caster's 52 Series is manufactured from cold formed steel. This series is highly recommended for use in medium duty industrial caster applications. Log in below to download FREE 2D or 3D CAD drawings and models of this caster.
Features
Swivel Section: Cold 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.
Kingpin: 3/4" diameter rivet hydraulically compressed to increase strength of swivel section as compared to staking
Capacity: 1400 lbs.
Axle: 1/2" diameter drilled axle with lubrication fitting provided on 2" casters to improve ease of lubrication
Finish: Zinc plated to protect against corrosion
Mounting Plate Size: 4-1/2" x 6-1/2" x 1/4"
Bolt Hole Spacing: 2-7/16" x 4-15/16", slotted to 3- 3/8" x 5-1/4"
Mounting Bolt Diameter: 1/2"
Options
HT: High Temperature Lubrication
ICWB: Installable Face Contact Brake (2" wide only)
LT: Low Temperature Lubrication
KB: Nut and Bolt Kingpin
SL: Swivel Lock
SR: Sealed Swivel Raceway
TG: Thread Guards
WB: Side Wheel Brake (roller bearing only)
WS: Wheel Seals
WWB Wrap Around Wheel Brake
FIFG Field Installable Foot Guard
MICWB: Metal Installable Cam Wheel Brake
Optional Mounting Plates
Optional Top Plate Number Mounting Plate Bolt Hole Spacing Bolt Size
43ST 5" x 5-1/2" 4-1/8" x 4-1/2" 3/8"
43RT 5" x 5-1/2" 4-1/8" x 4-1/2" 3/8"
Optional Overall Heights
Wheel Diameter Overall Height
4" 5-1/8"
5" 6-1/2"
6" 7-1/2"
8" 9-1/2"
8" 10-1/8"
Applications
The 52 Series is is the perfect solution for:
  • movable racks
  • conveyor and drag line applications
  • utility trucks
  • corrugated box trucks
  • caster mounted production jigs and fixtures
  • maintenance carts
Specifications
spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart spec Chart
4" 1-1/2" Forged Steel 1400 5-3/4" 52-FSR-0415-S   52-FSC-0415-S 1-13/32" 8.8
4" 2" Cast Iron 800 5-3/4" 52-CIR-0420-S 52-CIB-0420-S 52-CIC-0420-S 1-3/8" 8.3
4" 2" Durastan 800 5-3/4" 52-DUR-0420-S 52-DUB-0420-S 52-DUC-0420-S 1-3/8" 6.4
4" 2" GT 1050 5-3/4"   52-GTB-0420-S   1-3/8" 6.4
4" 2" High Temp. Nylon 800 5-3/4" 52-HNR-0420-S     1-3/8" 5.8
4" 2" Nylatron HD 1400 5-3/4"   52-NYB-0420-S   1-3/8" 6.9
4" 2" Performance TPR 350 5-3/4" 52-RPR-0420-R 52-RPB-0420-R 52-RPC-0420-S 1-3/8" 6.5
4" 2" Polyolefin 500 5-3/4" 52-POR-0420-S 52-POB-0420-S 52-POC-0420-S 1-3/8" 6.0
4" 2" Rubber on Aluminum 700 5-3/4"   52-RAB-0420-S-EHT   1-3/8" 6.5
4" 2" Rubber on Iron 350 5-3/4" 52-RIR-0420-S   52-RIC-0420-S 1-3/8" 8.1
4" 2" Urethane on Aluminum 700 5-3/4" 52-UAR-0420-S   52-UAC-0420-S 1-3/8" 6.6
4" 2" Solid Urethane 700 5-3/4"   52-MUB-0420-S   1-3/8" 6.2
4" 2" Urethane on Iron 700 5-3/4" 52-UIR-0420-S   52-UIC-0420-S 1-3/8" 8.2
4" 2" Urethane Polypropylene 600 5-3/4" 52-UPR-0420-S 52-UPB-0420-S 52-UPC-0420-S 1-3/8" 6.5
4" 2" V-Groove Iron 800 5-3/4" 52-VIR-0420-S   52-VIC-0420-S 1-3/8" 8.5
4" 2" Signature 400 5-3/4" 52-SWR-0420-S 52-SWB-0420-S 52-SWC-0420-S 1-3/8" 6.2
4" 2" Pinnacle 800 5-3/4" 52-PNR-0420-S 52-PNB-0420-S 52-PNC-0420-S 1-3/8" 6.0
5" 2" Cast Iron 1000 7-1/4" 52-CIR-0520-S 52-CIB-0520-S 52-CIC-0520-S 1-13/16" 9.6
5" 2" Durastan 1000 7-1/4" 52-DUR-0520-S 52-DUB-0520-S 52-DUC-0520-S 1-13/16" 6.9
5" 2" Forged Steel 1400 7-1/4" 52-FSR-0520-S   52-FSC-0520-S 1-13/16" 10.8
5" 2" GT 1200 7-1/4"   52-GTB-0520-S   1-13/16" 6.9
5" 2" High Temp. Nylon 1000 7-1/4" 52-HNR-0520-S     1-13/16" 6.9
5" 2" Nylatron HD 1400 7-1/4"   52-NYB-0520-S   1-13/16" 7.4
5" 2" Performance TPR 375 7-1/4" 52-RPR-0520-S 52-RPB-0520-R 52-RPC-0520-S 1-13/16" 7.0
5" 2" Polyolefin 650 7-1/4" 52-POR-0520-S 52-POB-0520-S 52-POC-0520-S 1-13/16" 6.1
5" 2" Rubber on Aluminum 800 7-1/4"   52-RAB-0520-S-EHT   1-13/16" 7.2
5" 2" Rubber on Iron 400 7-1/4" 52-RIR-0520-S   52-RIC-0520-S 1-13/16" 9.1
5" 2" Solid Urethane 1000 7-1/4"   52-MUB-0520-S   1-13/16" 6.5
5" 2" Urethane on Aluminum 1050 7-1/4" 52-UAR-0520-S   52-UAC-0520-S 1-13/16" 7.0
5" 2" Urethane on Iron 1050 7-1/4" 52-UIR-0520-S   52-UIC-0520-S 1-13/16" 9.2
5" 2" Urethane Polypropylene 750 7-1/4" 52-UPR-0520-S 52-UPB-0520-S 52-UPC-0520-S 1-13/16" 7.0
5" 2" V-Groove Iron 800 7-1/4" 52-VIR-0520-S   52-VIC-0520-S 1-13/16" 9.9
5" 2" Signature 500 7-1/4" 52-SWR-0520-S 52-SWB-0520-S 52-SWC-0520-S 1-13/16" 6.5
5" 2" Pinnacle 1000 7-1/4" 52-PNR-0520-S 52-PNB-0520-S 52-PNC-0520-S 1-13/16" 6.3
6" 2" Cast Iron 1200 7-3/4" 52-CIR-0620-S 52-CIB-0620-S 52-CIC-0620-S 1-13/16" 11.2
6" 2" Durastan 1200 7-3/4" 52-DUR-0620-S 52-DUB-0620-S 52-DUC-0620-S 1-13/16" 8.0
6" 2" Forged Steel 1400 7-3/4" 52-FSR-0620-S   52-FSC-0620-S 1-13/16" 12.5
6" 2" GT 1400 7-3/4"   52-GTB-0620-S   1-13/16" 8.0
6" 2" High Temp. Nylon 1200 7-3/4" 52-HNR-0620-S     1-13/16" 8.0
6" 2" Omega 1000 7-3/4" 52-UOR-0620-S 52-UOB-0620-S   1-13/16" 10.5
6" 2" Performance TPR 525 7-3/4" 52-RPR-0620-S 52-RPB-0620-R 52-RPC-0620-S 1-13/16" 7.0
6" 2" Polyolefin 700 7-3/4" 52-POR-0620-S 52-POB-0620-S 52-POC-0620-S 1-13/16" 8.0
6" 2" Rubber on Aluminum 820 7-3/4"   52-RAB-0620-S-EHT   1-13/16" 9.5
6" 2" Rubber on Iron 410 7-3/4" 52-RIR-0620-S   52-RIC-0620-S 1-13/16" 9.5
6" 2" Solid Urethane 1200 7-3/4"   52-MUB-0620-S   1-13/16" 7.2
6" 2" Urethane on Aluminum 1230 7-3/4" 52-UAR-0620-S   52-UAC-0620-S 1-13/16" 7.8
6" 2" Urethane on Iron 1230 7-3/4" 52-UIR-0620-S   52-UIC-0620-S 1-13/16" 10.5
6" 2" Urethane Polypropylene 900 7-3/4" 52-UPR-0620-S 52-UPB-0620-S 52-UPC-0620-S 1-13/16" 7.0
6" 2" V-Groove Iron 1000 7-3/4" 52-VIR-0620-S   52-VIC-0620-S 1-13/16" 11.2
6" 2" Signature 600 7-3/4" 52-SWR-0620-S 52-SWB-0620-S 52-SWC-0620-S 1-13/16" 7.2
6" 2" Pinnacle 1200 7-3/4" 52-PNR-0620-S 52-PNB-0620-S 52-PNC-0620-S 1-13/16" 6.9
6" 2" Torus 1200 7-3/4"   52-UAB-0621-S   1-13/16" 6.1
6" 2-1/2" Cast Iron 1400 7-3/4" 52-CIR-0625-S     1-13/16" 15.1
6" 2-1/2" Durastan 1400 7-3/4" 52-DUR-0625-S     1-13/16" 10.8
6" 2-1/2" Forged Steel 1400 7-3/4" 52-FSR-0625-S     1-13/16" 19.5
6" 2-1/2" Rubber on Iron 540 7-3/4" 52-RIR-0625-S     1-13/16" 13.8
6" 2-1/2" Urethane on Iron 1400 7-3/4" 52-UIR-0625-S     1-13/16" 17.0
6" 2-1/2" V-Groove Iron 1400 7-3/4" 52-VIR-0625-S     1-13/16" 17.2
6" 2-1/2" Rubber on Iron-EHT 810 7-3/4" 52-RIR-0625-S-EHT     1-13/16" 13.8
8" 2" Cast Iron 1400 9-3/4" 52-CIR-0820-S 52-CIB-0820-S 52-CIC-0820-S 2-1/4" 15.3
8" 2" Durastan 1400 9-3/4" 52-DUR-0820-S 52-DUB-0820-S 52-DUC-0820-S 2-1/4" 9.7
8" 2" GT 1400 9-3/4"   52-GTB-0820-S   2-1/4" 9.7
8" 2" Omega 1200 9-3/4" 52-UOR-0820-S 52-UOB-0820-S   2-1/4" 14.1
8" 2" Performance TPR 600 9-3/4" 52-RPR-0820-S 52-RPB-0820-R 52-RPC-0820-S 2-1/4" 9.0
8" 2" Polyolefin 800 9-3/4" 52-POR-0820-S 52-POB-0820-S 52-POC-0820-S 2-1/4" 7.7
8" 2" Rubber on Aluminum 1000 9-3/4"   52-RAB-0820-S-EHT   2-1/4" 12.2
8" 2" Rubber on Iron 500 9-3/4" 52-RIR-0820-S   52-RIC-0820-S 2-1/4" 12.2
8" 2" Solid Urethane 1400 9-3/4"   52-MUB-0820-S   2-1/4" 8.0
8" 2" Urethane on Aluminum 1400 9-3/4" 52-UAR-0820-S   52-UAC-0820-S 2-1/4" 9.3
8" 2" Urethane on Iron 1400 9-3/4" 52-UIR-0820-S   52-UIC-0820-S 2-1/4" 14.1
8" 2" Urethane Polypropylene 1000 9-3/4" 52-UPR-0820-S 52-UPB-0820-S 52-UPC-0820-S 2-1/4" 9.0
8" 2" V-Groove Iron 1050 9-3/4" 52-VIR-0820-S   52-VIC-0820-S 2-1/4" 15.0
8" 2" Signature 700 9-3/4" 52-SWR-0820-S 52-SWB-0820-S 52-SWC-0820-S 2-1/4" 8.0
8" 2" Pinnacle 1400 9-3/4" 52-PNR-0820-S 52-PNB-0820-S 52-PNC-0820-S 2-1/4" 7.8
8" 2" Torus 1400 9-3/4"   52-UAB-0821-S   2-1/4" 7.3
8" 2-1/2" Cast Iron 1400 9-3/4" 52-CIR-0825-S     2-1/4" 19.7
8" 2-1/2" Durastan 1400 9-3/4" 52-DUR-0825-S     2-1/4" 13.1
8" 2-1/2" Forged Steel 1400 9-3/4" 52-FSR-0825-S     2-1/4" 29.6
8" 2-1/2" Rubber on Iron 670 9-3/4" 52-RIR-0825-S     2-1/4" 17.8
8" 2-1/2" Urethane on Iron 1400 9-3/4" 52-UIR-0825-S     2-1/4" 18.8
8" 2-1/2" V-Groove Iron 1400 9-3/4" 52-VIR-0825-S     2-1/4" 20.0
8" 2-1/2" Rubber on Iron-EHT 1005 9-3/4" 52-RIR-0825-S-EHT     2-1/4" 17.8
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.