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1/4" × 5/8" Threaded Stem Casters (Shepherd Pacer Series)

Light-duty threaded stem casters manufactured by Shepherd for furniture, fixtures, seating, displays, and light equipment applications. This series is USA-made and commonly specified where compact size, controlled movement, and consistent dimensional quality are required.

Stem size
1/4" diameter × 5/8" length threaded stem
Wheel diameter
50 mm (≈2")
Rated capacity
Up to ~75 lbs per caster (dynamic load)
Country of origin
Made in the USA

Construction and design characteristics

Housing and swivel design
  • Zinc die-cast body and hood
  • Concealed axle design
  • Compact swivel geometry for tight clearances
Dimensional reference
  • Overall height: ~2-1/2"
  • Swivel radius (no brake): ~1-3/4"
  • Swivel radius (with brake): ~2-7/16"
Finish and brake options

Available finishes include bright chrome, satin chrome, flat black, brass plate, and antique-style finishes depending on model. Brakes are available on select 50 mm configurations.

Common applications
  • Furniture and seating
  • Retail displays and store fixtures
  • Office and electronic equipment
  • Light-duty carts and OEM assemblies
Application guidance

This series is intended for light-duty indoor use on smooth surfaces. Load ratings are based on dynamic conditions and assume proper installation and floor conditions. Not recommended for industrial material handling or environments involving impact, debris, or uneven floors.

Caster Engineering Tools

These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.

CasterSpec Load Calculator
Fast estimate. Expand for safety factor + uneven floor + spec output.
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Load
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Base per caster
Worst-case per caster
Recommended rating
Spec output (auto-generated)
Tip: paste into RFQs / threads. Expand tool for advanced inputs.
WheelMatch Material Selector
Fast recommendation. Expand for noise, duty cycle, floor protection.
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Wheel
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Primary recommendation
Good alternate
When to avoid
Spec output (auto-generated)
Engineers share tools that output a clean “why” line.
PushForce Push/Pull Calculator
Estimate effort fast. Expand for operators, materials, bumps, startup mode.
Expand full push/pull
Push
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Estimated total force
Per operator
Pass / target
Spec output (auto-generated)
If effort is high: bigger wheels + better material + smoother path wins.
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