We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Steel flanged track roller with concentric stud, 4 inch diameter

Smith Bearing

Smith Bearing FCR-4 Track Roller 4 in Diameter

SKU CH-ZNJE-RE11B

Heavy-duty flanged track roller with tapered roller bearing, 4 in diameter and 2 in width, built from AISI 52100 alloy steel

  • Heavy-duty alloy steel construction withstands demanding loads
  • Flanged 4 in roller guides tracks with stability
  • Concentric stud with 1 1/4 in-12 thread simplifies mounting
  • Tapered roller bearing handles combined radial and thrust forces
  • AISI 52100 bearing-grade steel resists wear for long service life

Smith Bearing FCR-4 Track Roller

The Smith Bearing FCR-4 is a heavy-duty flanged track roller built for linear motion and guide-rail applications. It uses a tapered roller bearing made from AISI 52100 alloy steel to handle combined radial and thrust loads. The 4 in roller diameter and 2 in width provide a broad contact surface for stability. This unit suits machinery requiring robust, low-friction tracking.

Installation notes for stud mount

The roller mounts via a 1 1/4 in.-12 concentric stud thread directly into a tapped hole or nut. No separate drive components are included, so torque the stud to the equipment manufacturer’s specification. Misalignment during fitting can cause premature bearing wear or flange contact. The open closure means lubrication access must be maintained externally.

Compatibility checks before ordering

Verify that the mounting structure accepts a 1 1/4 in.-12 thread and provides clearance for the 4 in flanged diameter. Confirm the application does not require an integral seal, as the seal type is listed as not applicable. Ensure the operating environment suits alloy steel components without additional corrosion protection. The overall length of 4 13/16 in must fit the available spatial envelope.

Highlights

  • Heavy-duty alloy steel construction withstands demanding loads
  • Flanged 4 in roller guides tracks with stability
  • Concentric stud with 1 1/4 in-12 thread simplifies mounting
  • Tapered roller bearing handles combined radial and thrust forces
  • AISI 52100 bearing-grade steel resists wear for long service life

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the track roller is rotating smoothly after installation?

Verify that the tapered roller bearing turns freely by hand and listen for quiet operation; the flanged head should stay aligned on the track without wobble.

What components come with the track roller and what must be sourced separately?

The unit includes the alloy-steel stud with 1 1/4 In.-12 threads, flanged roller head, and AISI 52100 tapered roller bearing; mounting hardware and lubrication are not supplied.

Which stud thread size matches my existing mounting hole?

This model uses a concentric stud threaded 1 1/4 In.-12; select it only if your equipment requires that exact thread specification.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.