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Silver cylindrical roller bearing with tapered bore and brass cage

ZIBOO

ZIBOO NTN 21314 K Spherical Roller Bearing 70x150x35mm electrician tool

SKU CH-ZDRJ-HP73G

Spherical roller bearing with 70 mm bore, 150 mm outer diameter and 35 mm width for high-load electrician applications

  • Precise 70 mm bore fits standard shafts
  • 150 mm outer diameter supports heavy radial loads
  • 35 mm width enables compact housing design
  • Tapered bore simplifies mounting and removal

ZIBOO NTN 21314 K Spherical Roller Bearing

The ZIBOO NTN 21314 K is a spherical roller bearing measuring 70x150x35mm. It suits maintenance engineers and electricians who need a replacement bearing for rotating equipment such as motors or gearboxes. The tapered bore (K) allows mounting on an adapter sleeve for secure shaft fitment. It handles combined radial and axial loads in demanding industrial applications.

Installing the tapered bore bearing

Installation requires a suitable adapter sleeve and locknut matched to the 70mm bore; the sleeve is not included. Press the inner ring evenly using a bearing driver or hydraulic nut to avoid raceway damage. Common problems include misalignment during fitting, which causes premature wear, and insufficient lubrication after assembly, leading to overheating. Verify shaft tolerances before mounting.

How it compares

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

Price $53.99
Cheaper than about 77% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameZIBOO
Model nameNTN 21314 K

Questions about this item

How can I confirm the NTN 21314 K spherical roller bearing rotates freely after installation?

Rotate the inner ring by hand; it should turn smoothly without binding or rough spots, indicating the 70 mm bore, 150 mm outer diameter and 35 mm width are correctly seated.

What components are included with the NTN 21314 K bearing and what must be sourced separately?

The box contains the 21314 K spherical roller bearing only; mounting sleeves, lock nuts, lubricant and installation tools are not supplied and must be purchased separately.

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