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NTN 6304LU/5C: bore d 20.000 mm, outside diameter D 52.000 mm, width B 15.000 mm, drawn to scaled 20.000 mmD 52.000 mmB 15.000 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 6304LU/5C deep groove ball bearing

NTN 6304LU/5C deep groove ball bearing: bore d 20.000 mm (0.7870 in), outside diameter D 52.000 mm (2.0472 in), width 15.000 mm (0.5906 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 d20.000 mm (0.7870 in)
Outside diameter D52.000 mm (2.0472 in)
Width15.000 mm (0.5906 in)
Basic dynamic load rating Cr17.60 kN
Basic static load rating C0r7.90 kN

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

Same size, other makers and types (20 × 52 × 15 mm)

PartManufacturerType
7304Koyoangular contact ball bearing
7304BKoyoangular contact ball bearing
7304CKoyoangular contact ball bearing
N304Koyocylindrical roller bearing
NF304Koyocylindrical roller bearing
NJ304RKoyocylindrical roller bearing
NU304RKoyocylindrical roller bearing
NUP304RKoyocylindrical roller bearing
6304 2RDKoyodeep groove ball bearing
6304 2RSKoyodeep groove ball bearing
6304 2RUKoyodeep groove ball bearing
6304 ZZKoyodeep 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. 6 more share this size.

Related parts

Sources