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Cast iron pillow block bearing, black finish, cylindrical bore

Ntn

Ntn UCPL-1.3/8M Pillow Block Bearing collectible

SKU CH-E45F-AK9E2

A cast-iron pillow-block bearing with a 1 3/8 in bore, set-screw locking and a 4,200 RPM limit

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorBlack
  • Durable cast-iron housing resists heavy loads
  • Alloy-steel radial ball insert handles 4,200 RPM
  • Set-screw lock secures 1 3/8 in shaft
  • NLGI #3 grease works from -40 to 250 °F
  • Two bolt-through holes simplify mounting

Industrial pillow block bearing

The NTN UCPL-1.3/8M is a new cast-iron pillow block bearing designed for power-transmission equipment. It uses a radial ball insert made from alloy steel with a cylindrical bore measuring 1 3/8 in. The housing mounts through two bolt-through holes spaced 5 1/8 in centre-to-centre.

Suits fixed-shaft mounting at moderate speeds

This unit suits applications that need a simple bolt-down bearing with a set-screw locking method. The open closure and NLGI #3 equivalent lubricant support an operating range from -40 °F to 250 °F and a maximum speed of 4,200 RPM. Buyers who need sealed closures, higher temperature ratings or a different bore diameter should look at other models.

Fits standard two-bolt base patterns

The base height of 0.72 in and width of 1.874 in with a centre height of 1 51/64 in match common industrial footprints. Two mounting holes accept standard hardware, freeing the builder from custom machining. The set-screw insert secures the shaft without additional locking components.

Highlights

  • Durable cast-iron housing resists heavy loads
  • Alloy-steel radial ball insert handles 4,200 RPM
  • Set-screw lock secures 1 3/8 in shaft
  • NLGI #3 grease works from -40 to 250 °F
  • Two bolt-through holes simplify mounting

Specifications

BrandNTN
TypeBearings, V-belts & Power Transmission Equipment
ColorBlack

Questions about this item

What shaft diameter does the 1 3/8 in bore of this NTN UCPL pillow block bearing fit?

The cylindrical bore accepts a shaft of exactly 1 3/8 in diameter and is secured with the integral set-screw locking mechanism.

Will the 5 1/8 in mount-hole centres on this cast-iron housing align with the bolt pattern on my existing equipment?

The housing has two bolt-through holes spaced 5 1/8 in centre-to-centre; match that dimension to your current mounting points before installation.

How can I confirm the bearing is running correctly after I bolt it down?

Verify smooth rotation by hand, ensure operating speed stays below 4,200 RPM and temperature remains between -40 °F and 250 °F, and check that the NLGI #3 equivalent lubricant is not leaking from the open closure.

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