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NTN 6910ZNC3: bore d 50.000 mm, outside diameter D 72.000 mm, width B 12.000 mm, drawn to scaled 50.000 mmD 72.000 mmB 12.000 mm
Drawing: BearingLookup, to the printed bore d, outside diameter D and width B cited in the specifications below; internal detail is illustrative; seals or shields, if any, are not shown.

NTN 6910ZNC3 deep groove ball bearing

NTN 6910ZNC3 deep groove ball bearing: bore d 50.000 mm (1.9685 in), outside diameter D 72.000 mm (2.8346 in), width 12.000 mm (0.4724 in).

Deep groove ball bearings · All NTN part numbers

Open deep groove ball bearing with its steel balls visible
A typical deep groove ball bearing — not necessarily this part. Photo: “1984 deep groove ball bearing UR 6304 made in Czechoslovakia by ZKL” by R. Henrik Nilsson, CC BY 4.0, via Wikimedia Commons (resized).

Specifications

Bore d50.000 mm (1.9685 in)
Outside diameter D72.000 mm (2.8346 in)
Width12.000 mm (0.4724 in)
Basic dynamic load rating Cr14.90 kN
Basic static load rating C0r11.20 kN

All specifications: Verified printed in NTN’s own product listing

Same size, other makers and types (50 × 72 × 12 mm)

PartManufacturerType
7910CKoyoangular contact ball bearing
6910 2RUKoyodeep groove ball bearing
6910 ZZKoyodeep groove ball bearing
6910Koyodeep groove ball bearing

These match this part on the dimensions each maker prints. A size match is not a stated interchange: check the other specifications before substituting.

Related parts

Sources