33895-33822 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 33895-33822 model number is decoded

For a 53.975 mm shaft the usual cone seat is k5 with an H7 housing when the inner ring rotates; arrange two 33895 bearings as a set for two-direction location and set clearance from the load diagram, never from assembly feel. Load system: the 129 kN basic dynamic rating C and 137 kN static rating C0 give a C0/C balance of 1.06, and dividing C by the 53.975 mm bore yields 2.39 kN per millimetre of journal — a density metric that compares across families; the 16 kN fatigue limit Pu is the floor beneath which the adjusted-life calculation drops below acceptable L10 hours for a 53.975 mm shaft carrying variable duty. Why the cup reference matters here: in the 33800-series tables the 33895 cone appears against several cup options. 33895 is the pairing with 33822, and that choice — not the cone — fixes the 95.25 mm OD, the raceway track position and the 27.783 mm assembled width.33895 is a single-row tapered roller bearing in the 33800-series inch series: a separable cone-and-cup design for combined radial and one-direction axial load, listed by SKF in SKF catalogue PUB BU/P1 17000.Reading the designation: 33895 follows the Timken-style inch convention — the cone (inner ring with rollers) and cup (outer ring) are quoted as a pair separated by a slash, and the 33800-series code identifies the dimensional series. The 53.975 mm bore, 95.25 mm OD and 27.783 mm width are the metric equivalents of the inch boundary dimensions. In SKF suffix language a bare 33895 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. At 5,600 r/min reference speed the 20.6 mm-section 33895 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 7,000 r/min as the mechanical ceiling.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 53.975 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 33895 pair heats, loses setting control and smears the roller-rib contact.
• The 320 series at 53.975 mm bore (95.25×27.783 mm) is the low-friction, higher-speed section; it carries less thrust than a 302 of the same bore, so verify the axial load share before swapping.
• A single 33895 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.
• At the 129 kN rating of 33895, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 7,000 r/min speed end and heavier preload only where moment stiffness dominates.
• Open 33895 units need application-supplied sealing and a defined EP lubricant supply; the roller-rib contact is the first to fail when the additive film breaks down.
• The 129/137 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 33895 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 33895/33822 designation when purchasing and match the execution to the mounting arrangement.