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Grey cast iron pillow block bearing with eccentric locking collar, 1-1/2 inch bore, two bolt holes, 150 lb dynamic load

Timken

Timken VAS 1-1/2 Pillow Block Bearing 150 lb

SKU CH-3FEK-5MNVV

Supports a 1-1/2 inch shaft with a cast-iron housing, eccentric locking collar and 52100 chrome steel insert rated for 150 lb dynamic load

  • 1-1/2 in bore fits standard shafts
  • Cast iron housing resists heavy vibration
  • Eccentric locking collar secures shaft quickly
  • 52100 chrome steel insert handles 150 lb dynamic load
  • Mobil Polyrex EM lubrication extends service intervals

Timken VAS Pillow Block Bearing 1-1/2" Bore

This pillow block bearing uses a ball bearing insert with a 1-1/2 inch bore diameter. It suits light industrial machinery and conveyors where moderate radial loads occur. The eccentric locking collar simplifies shaft mounting without specialised tools. Buyers who need higher dynamic capacity or a different bore size should look elsewhere.

Thermals Noise and Power Draw

The cast iron housing dissipates heat during continuous operation at rated load. Factory lubrication with Mobil Polyrex EM or an NLGI #2 equivalent reduces friction and noise in normal service. Relubrication intervals depend on speed and environment rather than a fixed schedule. The bearing itself draws no electrical power.

Upgrades and Replacements

This unit replaces worn VAS series housings with identical bolt hole spacing of 5 3/8 inches centre-to-centre. The 52100 chrome steel insert resists wear better than standard carbon steel inserts in abrasive conditions. The jump is worthwhile when the existing housing shows fretting or the collar has lost holding force. Builders needing four-bolt mounting or a higher load rating cannot use this model.

Highlights

  • 1-1/2 in bore fits standard shafts
  • Cast iron housing resists heavy vibration
  • Eccentric locking collar secures shaft quickly
  • 52100 chrome steel insert handles 150 lb dynamic load
  • Mobil Polyrex EM lubrication extends service intervals

Specifications

BrandTIMKEN

Questions about this item

How do I install the eccentric locking collar on the 1-1/2" bore shaft and what step is often missed?

Slide the insert onto the shaft, position the housing on the 5 3/8" bolt centres, then turn the eccentric collar by hand in the direction of rotation before tightening the set screw; the missed step is skipping the hand-turn, which leaves the inner race loose.

What lubrication schedule does the Mobil Polyrex EM fill require for the 52100 chrome steel insert?

Re-grease through the housing fitting with NLGI #2 equivalent at intervals based on speed and load; the factory fill is Mobil Polyrex EM, so use a compatible grease to avoid mixing thickeners.

At what load does the 8,150 lb dynamic capacity limit bearing life under continuous operation?

The 8,150 lb dynamic load rating is the threshold; sustained radial loads above this value will reduce the calculated L10 life of the ball insert proportionally.

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