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Silver cylindrical roller bearing with two rows of rollers and inner raceway visible

ZIBOO

ZIBOO NTN 21318 Spherical Roller Bearing 90x190x43mm

SKU CH-K5E0-H4V5K

Spherical roller bearing measuring 90 by 190 by 43 millimetres for heavy radial and axial loads

  • Spherical roller design handles heavy radial and axial loads
  • NTN 21318 model with 90 mm bore fits standard housings
  • 190 mm outer diameter and 43 mm width match common specs
  • New condition ensures full factory performance from first use

NTN 21318 Spherical Roller Bearing

The NTN 21318 is a spherical roller bearing with 90 mm bore, 190 mm outer diameter and 43 mm width. It suits maintenance engineers and plant mechanics who need a replacement rolling element for heavy radial loads and moderate axial forces in industrial machinery.

Direct swap for a worn 21318 unit

Install this bearing when the existing 21318 shows excessive play, noise or heat. The jump is worth it if the current bearing has reached its service limit and the application demands the same 90x190x43 mm envelope without redesigning the shaft or housing.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $113.99
Pricier than about 57% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameZIBOO
Model nameNTN 21318

Questions about this item

What shaft diameter does the 90 mm bore of the NTN 21318 bearing fit?

The 90 mm bore matches a 90 mm shaft; verify the shaft tolerance class before pressing the bearing into place.

Which installation step is most often missed when fitting the 43 mm wide NTN 21318?

Applying even pressure to the inner ring only — never hammer the outer ring — and confirming the bearing seats squarely against the shaft shoulder.

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