32210T67-5-DB bearing: complete specifications & equivalents
The 32210T67-5-DB is a ISO 355 radial bearing sized 50 x 90 x 67.5 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 50 mm |
| Outer diameter D | 90 mm |
| Width B | 67.5 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 173 kN |
| Basic static load rating C0 | 200 kN |
| Fatigue load limit Pu | 22.8 kN |
| Reference speed (thermal) | 4800 rpm |
| Limiting speed (mechanical) | 7500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1500 g |
| Manufacturer designation | SKF 32210T67.5/DB |
| Standard | ISO 355 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants |
| Last verified | 2026-09-29 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants) · extracted 2026-09-29
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants); 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 & matched-db-series range
| Bore d | 1.969 in |
|---|---|
| Outer diameter D | 3.543 in |
| Width B | 2.657 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 20 mm |
| Smallest bore in matched-db-series | 35 mm |
| Largest outer diameter in matched-db-series | 480 mm |
| Width range across matched-db-series | 41.5–288 mm |
| Bore position in matched-db-series (smallest first) | 4 of 30 |
| Bore above smallest matched-db-series size | 15 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 32210T67 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 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 32210T67-5-DB model number is decoded
A matched /DB set needs no setting adjustment at mounting: the clearance is built in; the assembler's job is clean seats, correct fits (k5 on a 50 mm rotating shaft) and square abutments.For a 50 mm shaft carrying reversing axial load, SKF lists 32210T67-5-DB under catalogue execution SKF 32210T67.5/DB: a factory-matched back-to-back (O) matched pair tapered-roller pair, set and measured as one unit.Reading the designation: 32210T67.5 is the ISO 355 single-row base bearing (50 mm bore), and the suffix /DB marks the matched-set execution — arrangement, spacer grinding and factory clearance class. The pair envelope is 50×90×67.5 mm; the width covers both bearings of the set. In the back-to-back (O) arrangement the load lines diverge toward the shaft axis, giving the pair a wide effective spread: 32210T67-5-DB resists overturning moments and tilting loads stiffly, which is why O-sets are preferred for gearbox output shafts and pinion supports. Speed planning for the set uses the catalogue pair values: 4,800 r/min thermal reference and 7,500 r/min mechanical limiting speed — a matched pair runs warmer than one bearing because two roller sets share the 67.5 mm space. Assembly datum check: verify the 67.5 mm width against the drawing before clamping — the width is the assembled result and the quickest field check that the correct execution of 32210T67-5-DB is on the shaft. Inspection shorthand: at overhaul, mark both bearings and the spacer of 32210T67-5-DB before disassembly — the set is a matched system, and re-assembling with one component reversed changes the factory setting.
Typical equipment & failure modes
Common applications
- machine-tool spindles
- belt-driven fan and blower shafts
- axle-boxes in material-handling equipment
- differential and pinion drives
Known failure patterns
- false brinelling on idle paired sets exposed to machine vibration
- roller large-end smearing against the cone rib after EP lubricant film failure
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- rib-roller contact scoring from loss of the EP additive film
- fretting corrosion on a loose rotating shaft seat
Selection pitfalls — read before you substitute
- Setting is built into 32210T67-5-DB; the classic field error is re-adjusting a matched pair as if it were two loose single bearings, which destroys the /DB clearance class.
- Setting is built into 32210T67-5-DB; the classic field error is re-adjusting a matched pair as if it were two loose single bearings, which destroys the /DB clearance class.
- Clamp the 32210T67-5-DB pair axially through the cones, never through the rollers; pressing force across the roller complement brinells the raceways of both bearings at once.
- The 173/200 kN ratings are SKF catalogue 17000 values for this 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.
- Quote the full SKF 32210T67.5/DB designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of 32210T67-5-DB?
The SKF 32210T67.5/DB is a matched pair of single-row tapered roller bearings in back-to-back (O) matched pair arrangement with 50 mm bore, 90 mm outer diameter and 67.5 mm overall width (1.969 × 3.543 × 2.657 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 173 kN, C0 200 kN, fatigue load limit Pu 22.8 kN, reference speed 4,800 r/min, limiting speed 7,500 r/min, mass about 1.50 kg.
What does the /DB suffix on 32210T67-5-DB mean?
The base 32210T67.5 is the ISO 355 single-row bearing; the /DB suffix marks the matched-set execution — the arrangement (back-to-back (O)), the ground spacer and the factory-set axial clearance class. A matched set cannot be assembled from loose single bearings; quote the full designation when ordering.
Are the C and C0 ratings of 32210T67-5-DB for one bearing or the pair?
They are for the complete matched pair: C 173 kN dynamic and C0 200 kN static already include load sharing between the two bearings. Do not halve them for single-bearing checks, and do not compare them directly with the single-row 32210T67.5 table values.
Can 32210T67-5-DB be adjusted like two loose tapered bearings?
No — the axial clearance is set at the factory by selective spacer grinding. Mounting work is limited to clean seats, correct fits (k5 on a rotating 50 mm shaft) and axial clamping through the cones; re-setting in the field destroys the matched clearance class.
When should a back-to-back (O) matched set be chosen?
Choose the back-to-back (O) set where moment stiffness dominates — pinion supports, gearbox output shafts, crane sheaves. The diverging load lines give the widest effective spread at the 50 mm bore.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants on 2026-09-29. Read our editorial & correction policy.