33219 bearing: complete specifications & equivalents
The 33219 is a ISO 355 radial bearing sized 95 x 170 x 58 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 95 mm |
| Outer diameter D | 170 mm |
| Width B | 58 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 460 kN |
| Basic static load rating C0 | 560 kN |
| Fatigue load limit Pu | 62 kN |
| Reference speed (thermal) | 2800 rpm |
| Limiting speed (mechanical) | 3800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 5450 g |
| Manufacturer designation | SKF 33219 |
| Standard | ISO 355 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB) · extracted 2026-09-26
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.
Dimensions in inches & 33200-series range
| Bore d | 3.74 in |
|---|---|
| Outer diameter D | 6.693 in |
| Width B | 2.283 in |
| ISO bore code | 19 |
| Radial section height (D−d)/2 | 37.5 mm |
| Smallest bore in 33200-series | 25 mm |
| Largest outer diameter in 33200-series | 180 mm |
| Width range across 33200-series | 22–63 mm |
| Bore position in 33200-series (smallest first) | 17 of 18 |
| Bore above smallest 33200-series size | 70 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 33219 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 355 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 33219 model number is decoded
Ordering number SKF 33219 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 95 mm shaft, medium wide section, with an open pressed-steel-cage execution and one-direction axial capacity.Digit by digit, 33219 reads as bearing type 3 (single-row tapered roller), medium wide section series 32, and bore reference 19 resolving to 95 mm; 170 mm OD and 58 mm width are the matching ISO 355 boundary values. In SKF suffix language a bare 33219 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 37.5 mm radial section height ((170−95)/2) and 5450 g catalogue mass frame a 95 mm bore bearing rated at 460 kN C — roughly 4.84 kN of dynamic capacity per millimetre of bore before application factors. Because the contact line is tapered, one 33219 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 95 mm shaft typically takes a k5 seat with an H7 housing bore.
Typical equipment & failure modes
Common applications
- rolling-mill auxiliary drives
- crane sheave and hoist gearboxes
- paper-machine and printing rolls
- construction machinery drives
Known failure patterns
- cup or cone misalignment when the separable rings are not seated square during mounting
- loose cup rotation in the housing when the specified press fit is not achieved
- roller large-end smearing against the cone rib after EP lubricant film failure
- false brinelling on idle paired sets exposed to machine vibration
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- grease degradation after long shelf storage without rotation or re-greasing
Selection pitfalls — read before you substitute
- Mount the 95 mm bore 33219 by induction heating of the cone (max 120 °C — the pressed-steel cage sets the ceiling, not the steel); driving it home through the cup or rollers brinells the tapered raceway.
- The 332 series at 95 mm bore (170×58 mm) is the wide medium-section choice — more capacity than 30219 in the same OD class but a wider footprint; re-check housing width and pair setting before substituting.
- At the 460 kN rating of 33219, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 3,800 r/min speed end and heavier preload only where moment stiffness dominates.
- A single 33219 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 460/560 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 33219 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 33219 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
What are the dimensions and catalogue data of 33219?
The SKF 33219 is a single-row tapered roller bearing with 95 mm bore, 170 mm outer diameter and 58 mm width (3.74 × 6.693 × 2.283 in) per ISO 355. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 460 kN, C0 560 kN, fatigue load limit Pu 62 kN, reference speed 2,800 r/min, limiting speed 3,800 r/min, mass about 5450 g. It is an open, separable bearing with a pressed-steel cage.
How does the 33219 bore code work?
The last two digits of 33219 are bore code 19, so 19 × 5 = 95 mm bore. The 170 mm OD and 58 mm width come from the ISO 355 dimension-series plan, shared with other tapered bearings of the same code.
What do the 33219 series and basic execution designations mean?
The leading 3 marks a single-row tapered roller bearing; the second digit 32 is the ISO 355 series (medium wide section). The SKF catalogue lists the ISO 355 dimension-series code after the bare number. A steeper-contact-angle variant (B suffix) is a different order number and is not interchangeable with the basic execution.
Can a single 33219 take axial load in both directions?
No — one single-row tapered roller bearing reacts thrust in one direction only, and under radial load its contact angle induces an axial force. Use two bearings as a matched pair: O (back-to-back) for a rigid, moment-resisting arrangement, X (face-to-face) where thermal expansion must be tolerated, or tandem where one-direction thrust is shared.
How does 33219 compare with a ball bearing of the same bore?
A tapered roller bearing has line contact and a steep contact angle: much higher combined axial-plus-radial capacity and shock resistance than a ball bearing of the same bore, at the cost of speed, one-direction thrust, mandatory pairing for reversing loads and a minimum axial load requirement. A ball bearing cannot be dropped into a combined-load 33219 position and vice versa — verify load direction, Fa/Fr ratio and speed before substituting.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB on 2026-09-26. Read our editorial & correction policy.