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Search verified bearing designations and technical parameters across SKF, FAG, INA, TIMKEN, NSK, KOYO, IKO, NACHI and NTN.

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Designation Brand Category Inside dmm Outside Dmm Width Bmm

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ABEC equivalent (radial ball bearings)Understand the mapping and its limits →

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Bearing designation

Closure group

Brand

SKF44KOYO24FAG17NSK9TIMKEN3

Product family

Super-precision angular contact ball bearings32Angular contact ball bearings12Angular contact ball bearings9Angular contact ball3Matched pair / back-to-back / with machined cage3Matched pair / back-to-back / with pressed cage3Matched pair / face-to-face / with machined cage3Matched pair / face-to-face / with pressed cage3Matched pair / tandem / with machined cage3Matched pair / tandem / with pressed cage3Single-row / with machined cage3Single-row / with pressed cage3

Detailed product type

Angular contact ball bearings53Matched set of two super-precision, high-capacity, d design, single row angular contact ball bearings14Super-precision, high-capacity, universally matchable single row angular contact ball bearing10Single row angular contact ball bearing9Super-precision, high-capacity, single row angular contact ball bearing4Matched set of three super-precision, high-capacity, d design, single row angular contact ball bearings3Single row angular contact ball bearing with 40° contact angle and non-contact seals on both sides2Single row angular contact ball bearing with 25° contact angle1Super-precision angular contact ball bearing, universally matchable1

Bearing dimensions

Minimum and maximum (mm)

Inside d

Outside D

Width B

Height H

Technical attributes

Series

72051772003

Sealing2RS vs ZZ selection guide →

Without41Without — Not sealed13Open32RS — Contact seal on both sides2RSO — Contact seal on one side for O-arrengment2Seal on both sides2

Precision class

P6 — Class 6 (ISO 492:2023)13P68P5 — Class 5 (ISO 492:2023)4Normal3

Cage

TVP — Solid cage made of glass-fiber reinforced polyamid PA6613Pressed steel8Non-metallic6Brass sheet metal4JP — Steel sheet metal3Machined brass2Steel cage2MP — Solid brass cage, ball guided1Nylon cage1Polyamide 46 resin1

Bearing material

Bearing steel34Hybrid (ceramic balls)9

Lubricant

None41Without — Bearing not greased15GA14 — Ball bearing grease, low noise2Grease2

Performance

Dynamic load ≥ kN

Static load ≥ kN

Limit speed ≥ r/min

Mass ≤ kg

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