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Silver metal bearing ring marked NTN 7911C 55x80x13mm

ZIBOO

ZIBOO NTN 7911C 55x80x13mm electrician tool

SKU CH-4HEY-YAFY2

Single angular contact ball bearing measuring 55 by 80 by 13 millimetres

  • Single-row angular contact design handles combined radial and axial loads
  • 55 mm bore, 80 mm OD, 13 mm width fits standard electrician tool spindles
  • NTN 7911C precision manufacturing ensures consistent running accuracy
  • New condition guarantees full factory specification performance

NTN 7911C angular contact bearing

The ZIBOO NTN 7911C is a single angular contact ball bearing built for electrician tools and similar precision equipment. It suits technicians and maintenance crews who need a reliable rolling element for high-speed spindle or motor applications. The 55 mm bore, 80 mm outer diameter and 13 mm width match standard mounting seats in many professional-grade devices. This unit is supplied new and ready for immediate installation.

Supplied as a single bearing only

The package contains one NTN 7911C bearing with no additional seals, lubricants, spacers or mounting hardware. Installers must provide their own grease or oil, circlips and any required fitting tools. No software, documentation or adapters are included, so teams should verify the exact lubrication specification and clearance requirements from their equipment manual before assembly.

How it compares

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

Price $74.99
Cheaper than about 65% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameZIBOO
Model nameNTN 7911C

Questions about this item

How often should the NTN 7911C bearing be relubricated in continuous electrician tool use?

Relubrication intervals depend on load, speed and ambient temperature; monitor operating noise and temperature rise to set a practical schedule for the 55 mm bore bearing.

What is the first limiting factor for the 7911C under sustained high-speed operation?

The 13 mm width constrains the contact angle and ball complement, so heat buildup in the angular contact surfaces typically limits continuous speed before material fatigue.

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