32006-SKF 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 32006-SKF model number is decoded

SKF 32006 (SKF 32006 X) is the low-friction section tapered roller choice for a 30 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 55×17 mm ISO 355 envelope.Reading the designation: the leading 3 marks a single-row tapered roller bearing, the 20 is the ISO 355 diameter/width series (low-friction section), and the last two digits encode the 30 mm bore; the 55 mm OD and 17 mm width follow the ISO 355 general plan. In SKF suffix language a bare 32006 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 4.55 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.00 C0/C balance shows this execution is tuned to thrust-heavy combined loads rather than pure radial running. For a 30 mm shaft the usual cone seat is k5 with an H7 housing when the inner ring rotates; arrange two 32006 bearings as a set for two-direction location and set clearance from the load diagram, never from assembly feel. Dimensional interchange map: within the 32000 series at 30 mm bore, the 55 mm OD and 17 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 12.5 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 170 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 30 mm bore, interference and temperature rise consume clearance inside a preloaded pair; calculate the residual clearance after mounting and at operating temperature — an over-tight 32006 pair heats, loses setting control and smears the roller-rib contact.
• The 320 series at 30 mm bore (55×17 mm) is the low-friction, higher-speed section; it carries less thrust than a 30206 of the same bore, so verify the axial load share before swapping.
• The tapered contact angle creates an induced axial load under pure radial force; include it in the 32006 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• A single 32006 cannot locate the shaft axially in both directions; mounting it singly on a reversing-thrust shaft leaves one direction uncontrolled — always use an O or X matched pair for bidirectional location.
• The 32006 shares its ISO 355 envelope with other tapered bearings of the same code but is not a drop-in replacement for a ball bearing: 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 43.9/44 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 32006 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 32006 X designation when purchasing and match the execution to the mounting arrangement.