3314-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 3314-A-2Z model number is decoded

3314 A-2Z is the capped double-row angular-contact ball bearing for a 70 mm shaft, 70×150×63.5 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 70×150×63.5 mm (2.756×5.906×2.5 in), 40.0 mm radial section height, C 163 kN, C0 125 kN, Pu 5 kN.SKF publishes only the 4,300 r/min limiting speed for this execution, catalogue mass 5050 g. Sizing arithmetic on the 70 mm bore: 163 kN C divided by the 40.0 mm radial section height gives 4.1 kN per section millimetre; the 5050 g mass and 3 % Pu/C share frame the light-load floor for the adjusted-life check. Load balance: C0 125 kN against C 163 kN gives a 0.77 ratio, typical of a steep-angle axial-oriented design; Pu 5 kN enters the SKF adjusted-life equation rather than the basic rating life. Speed-ratio note for this exact unit: no thermal reference speed is listed (seal/grease life governs), so the 4,300 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

• Open 3314 and capped 3314-A-2Z share the 70×150×63.5 mm envelope and 163/125 kN ratings — the choice is maintenance access and contamination, not capacity.
• Fit and fillet rules are unchanged from the open double-row 3314: k5 on a 70 mm rotating shaft, radii clearing the chamfer.
• Never wash 3314-A-2Z in solvent: the lifetime grease fill cannot be replaced once flushed out.
• Never wash 3314-A-2Z in solvent: the lifetime grease fill cannot be replaced once flushed out.
• Catalogue ratings are SKF PUB BU/P1 17000 figures for 3314 A-2Z as the double shielded execution; the other order numbers of the 3314 size are different products and may carry different ratings — always quote the full designation when purchasing.