3214-A-2Z bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the 3214-A-2Z model number is decoded

3214 A-2Z is the capped double-row angular-contact ball bearing for a 70 mm shaft, 70×125×39.7 mm, greased and sealed (or shielded) for life at the SKF works. A on this double-row bearing means no filling slots, so both ball rows retain their full complement. -2Z marks a sheet-metal shield on each side: non-contacting, grease-retention and dust protection with negligible drag, the bearing remaining open-style relubricatable only through the shield clearance. Envelope 70×125×39.7 mm (2.756×4.921×1.563 in), 27.5 mm radial section height, C 88.4 kN, C0 80 kN, Pu 3.4 kN.SKF publishes only the 4,500 r/min limiting speed for this execution, catalogue mass 1900 g. Envelope economics: the 39.7 mm width over a 27.5 mm section yields 1.44 mm of ring width per section millimetre, and the bearing weighs 1900 g for 88.4 kN of dynamic capacity — about 21 g per rated kN. At the printed limiting speed of 4,500 r/min the mean pitch diameter dm ≈ 97.5 mm implies a dn value around 439k mm·r/min; only the limiting speed is published for this execution. Speed-ratio note for this exact unit: no thermal reference speed is listed (seal/grease life governs), so the 4,500 r/min limiting value is the single published ceiling. Shielded execution note: the two sheet-metal -2Z covers clip into the outer ring without contacting the inner ring, giving grease retention and coarse-dust protection at virtually no friction; the cavity is factory-greased and the shield arrangement suits dry, moderately dusty positions rather than wash-down duty, where the A-2RS1 contact-seal order number is the alternative.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Never wash 3214-A-2Z in solvent: the lifetime grease fill cannot be replaced once flushed out.
• The capped speed ceiling is 4,500 r/min — seal drag and grease life govern, which is why SKF publishes no thermal reference speed for A-2Z.
• Open 3214 and capped 3214-A-2Z share the 70×125×39.7 mm envelope and 88.4/80 kN ratings — the choice is maintenance access and contamination, not capacity.
• Never wash 3214-A-2Z in solvent: the lifetime grease fill cannot be replaced once flushed out.
• Catalogue ratings are SKF PUB BU/P1 17000 figures for 3214 A-2Z as the double shielded execution; the other order numbers of the 3214 size are different products and may carry different ratings — always quote the full designation when purchasing.