7319 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB); 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 7319 model number is decoded

For a 95 mm shaft carrying combined load, SKF lists 7319 under catalogue execution 7319 BEP: one open single-row angular-contact ball bearing, 40° contact angle, in the medium (7300) series of the 7xxx family.Digit by digit, 7319 reads as bearing type 7 (single-row angular contact), medium section diameter series 3, and bore reference 19 resolving to 95 mm; 200 mm OD and 45 width are the matching ISO 15 boundary values. The letters mean B = 40° angle, E = enhanced ball complement and race geometry, P = PA66 glass-fibre cage, so this 7319 is the open polymer-caged execution rather than the sealed or brass-cage catalogue variants. Speed planning uses two different ceilings: 4,000 r/min reference (thermal, under representative load) and 3,800 r/min limiting (mechanical cage/ball limit). Note the minimum-axial-load requirement: at light radial load and high speed the balls of 7319 must still be held into the contact ellipse, which is another reason the catalogue recommends paired mounting with controlled preload on 95 mm shaft positions.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 95 mm bore the ring mass is high enough that cocking during mounting damages the cage and race lips; guide the ring square, confirm seat contact around the full circumference, and re-check preload after the first thermal cycle of the paired set.
• The 73xx medium section at 95 mm bore (200×45 mm) is heavier-rated than the 7219 but runs hotter at the same speed; do not substitute a 7319 into a 72-series spindle position without re-checking dn, lubricant film and preload.
• Do not mix execution classes inside one 7319 pair — universal-matchable (CB) bearings are ground for arbitrary pairing, but a CB unit paired with an unmatched basic BEP bearing will not share preload evenly.
• The 40° contact angle creates an induced axial load under pure radial force; include it in the 7319 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its balls.
• The 7319 shares its ISO 15 envelope with deep-groove 6319 but is not a drop-in replacement: it cannot run effectively under pure radial load without a minimum axial load, and a deep-groove bearing cannot replace its combined-load duty.
• The 168/150 kN ratings are SKF catalogue 17000 values for the 7319 BEP execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
• SKF lists several executions of 7319 (BEP basic, BECBP universally matchable, BE-2RZP sealed, BECBM brass-cage, ACC-series at 25°); they are not interchangeable order numbers — quote the full 7319 BEP designation when purchasing and match the execution to the mounting arrangement.
• A plain 7319 BEP is a single open bearing, not a universally matchable one; to mount a defined DB/DF pair order the BECBP (CB) execution — pairing two unmatched basic units gives uncontrolled preload because the side faces are not ground for set mounting.