30202 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB) · extracted 2026-09-28

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB); 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 30202 model number is decoded

In SKF catalogue PUB BU/P1 17000, 30202 appears as SKF 30202: an open, single-row tapered roller bearing in the standard section of the 30200 dimension series, supplied with a pressed-steel cage as standard.On the SKF nameplate, 30202 follows the ISO 355 convention: 3 for the tapered-roller type, 02 for the standard section, final digits 02 for the 15 mm bore. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. With C 18.5 kN and C0 14.6 kN, the 30202 pair-sizing check is dominated by the axial share: keep the equivalent load P below the rating at the required L10, remembering one bearing alone cannot cover reversing thrust at 20,000 r/min. Because the contact line is tapered, one 30202 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 15 mm shaft typically takes a j5 seat with an H7 housing bore. Operating context for the 15 mm bore: a shaft of this diameter in the small-bore band typically runs between 12000 and 18000 r/min in real machinery, and the 35 mm outside diameter places the housing shoulder at 43 mm outer abutment; the 11.75 mm width and 55 g mass together set the shaft critical speed and the housing resonance check for this 30200-series envelope.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At a 15 mm bore the thin cone and cup are easily distorted by an over-tight shaft nut; check seat runout (target Ra ≤ 0.8 µm) and torque the locknut progressively — a pinched 30202 shows up as gearbox vibration long before it fails.
• The 302 series at 15 mm bore (35×11.75 mm) is the standard tapered-roller envelope; stepping to a 32202 or 32302 changes OD, width and heat generation — it is not a drop-in swap when the housing and speed are fixed.
• At the 18.5 kN rating of 30202, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 20,000 r/min speed end and heavier preload only where moment stiffness dominates.
• The tapered contact angle creates an induced axial load under pure radial force; include it in the 30202 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• The 55 g mass and 11.75 mm width mean spacer and abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the contact angle and concentrates load on one rib of 30202.
• The 18.5/14.6 kN ratings are SKF catalogue 17000 values for the basic 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 30202 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 30202 designation when purchasing and match the execution to the mounting arrangement.