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Silver metal ball bearing open type 105 by 145 by 20 mm

ZIBOO

ZIBOO NTN 6921 Single Row Radial Ball Bearing Open Type 105x145x20mm

SKU CH-Q4RZ-DCFM8

Single-row radial ball bearing, open type, 105 mm bore, 145 mm outer diameter, 20 mm width

  • Open design simplifies lubrication and inspection
  • Single-row construction handles radial loads efficiently
  • 105 mm bore fits standard shaft dimensions
  • 145 mm outer diameter matches common housing sizes

NTN 6921 radial ball bearing for electricians

The ZIBOO NTN 6921 is a single-row radial ball bearing built for electrician tooling and maintenance tasks. Its open-type design allows direct lubrication access and straightforward inspection during service intervals. The bearing suits applications where contamination is controlled and relubrication can be performed regularly. Dimensions are 105 mm inner diameter, 145 mm outer diameter and 20 mm width.

Open-type bearing needs clean environment

Because the bearing is open, it has no integral seals or shields to retain grease or exclude debris. Installers must ensure the surrounding assembly stays clean and that a relubrication schedule is practical for the equipment. Buyers who need a sealed or shielded unit for dirty or hard-to-reach locations should select a different bearing type.

How it compares

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

Price $88.99
Cheaper than about 55% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameZIBOO
Model nameNTN 6921

Questions about this item

How does the 105 mm bore fit onto a standard shaft?

The 105 mm bore slides over a matching 105 mm shaft and is secured with a locknut or set screw.

What does the open type mean for lubrication and sealing?

Open type has no seals so grease can be added directly and contaminants must be kept out by the surrounding housing.

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