4580-4535 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch 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. 8.2 inch 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 4580-4535 model number is decoded

A single 4580 locates the shaft in one axial direction only; mount it against a second bearing in O (back-to-back) or X (face-to-face) arrangement, and set the running clearance by the mounting procedure — not by feel. Dimensional interchange map: within the 45800 series at 50.8 mm bore, the 104.775 mm OD and 39.688 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 27.0 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 1650 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline. Cup-side note for 4535: the outer ring's rib profile and the 104.775 mm outside diameter are cup-specific within the 4500-series tables, so substituting a different cup against the same 4580 cone changes both the assembled 39.688 mm width and the axial free-play setting of the mounted pair.In SKF catalogue PUB BU/P1 17000, 4580 appears as SKF 4580/4535: an open, single-row tapered roller bearing in the 4500-series, supplied with a pressed-steel cage as standard.Digit by digit, 4580 reads as cone reference / cup reference in the 4500-series inch series; the 50.8 mm bore, 104.775 mm OD and 39.688 mm width are the metric equivalents of the original inch boundary values. In SKF suffix language a bare 4580 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 27.0 mm radial section height ((104.775−50.8)/2) and 1650 g catalogue mass frame a 50.8 mm bore bearing rated at 195 kN C — roughly 3.84 kN of dynamic capacity per millimetre of bore before application factors.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 50.8 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 4580 pair heats, loses setting control and smears the roller-rib contact.
• The 4500-series inch series at 50.8 mm bore (104.775×39.688 mm) follows the Timken cone/cup convention; substitutions must match both the cone and cup reference exactly — interchanging with another series or a metric 3xxxx bearing of the same bore changes OD, width and contact angle, so re-run the pair setting and shoulder-diameter checks before swapping.
• At the 195 kN rating of 4580, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 6,300 r/min speed end and heavier preload only where moment stiffness dominates.
• A single 4580 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 pressed-steel cage is rated for standard industrial service; sustained running above the limiting speed or with degraded lubricant wears the cage pockets — inspect the cage at every relubrication interval.
• The 195/224 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 4580 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 4580/4535 designation when purchasing and match the execution to the mounting arrangement.