32026T102X-DB bearing: complete specifications & equivalents
The 32026T102X-DB is a ISO 355 radial bearing sized 130 x 200 x 102 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 130 mm |
| Outer diameter D | 200 mm |
| Width B | 102 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 666 kN |
| Basic static load rating C0 | 1080 kN |
| Fatigue load limit Pu | 110 kN |
| Reference speed (thermal) | 2000 rpm |
| Limiting speed (mechanical) | 3000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 10500 g |
| Manufacturer designation | SKF 32026T102 X/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 | 5.118 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 4.016 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 35 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) | 18 of 30 |
| Bore above smallest matched-db-series size | 95 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 32026T102X | 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 32026T102X-DB model number is decoded
In the back-to-back (O) arrangement the load lines diverge toward the shaft axis, giving the pair a wide effective spread: 32026T102X-DB resists overturning moments and tilting loads stiffly, which is why O-sets are preferred for gearbox output shafts and pinion supports. The C0/C balance of the pair is about 1.62; combined with the 110 kN fatigue limit this frames a set sized for reversing combined load on a 130 mm shaft rather than for pure radial duty. Operating context for the 130 mm bore: a shaft of this diameter typically runs in the xl-bore band of industrial duty, and the 200 mm OD places the housing shoulder near 208 mm outer abutment. When a matched /DB set like 32026T102X-DB is replaced, replace the whole set: mixing a new bearing with a worn partner from the old set leaves the clearance and load sharing of the pair undefined. A matched /DB set needs no setting adjustment at mounting: the clearance is built in; the assembler's job is clean seats, correct fits (m6 on a 130 mm rotating shaft) and square abutments.For a 130 mm shaft carrying reversing axial load, SKF lists 32026T102X-DB under catalogue execution SKF 32026T102 X/DB: a factory-matched back-to-back (O) matched pair tapered-roller pair, set and measured as one unit.Numbering ties the set to its envelope: base 32026T102 X fixes the 130 mm bore and 200 mm OD of each bearing, the /DB suffix fixes the arrangement and setting, and the catalogue 102 mm width is the combined pair dimension.
Typical equipment & failure modes
Common applications
- rolling-mill roll-neck bearings
- heavy-duty rolling-mill gearboxes
- large crusher and mineral-processing drives
- marine propulsion gearboxes
Known failure patterns
- false brinelling on idle paired sets exposed to machine vibration
- thermal preload runaway in an O-arrangement pair when inner-ring heat expands the setting
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- mounting score marks when the cone is cocked over the shaft keyway or a burr
- electrical pitting on VFD-driven shafts without grounding protection
Selection pitfalls — read before you substitute
- O and X arrangements are not interchangeable by turning the set around: 32026T102X-DB in back-to-back (O) matched pair arrangement has its load-line geometry fixed — specify the arrangement from the shaft thermal and stiffness analysis.
- Setting is built into 32026T102X-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.
- O and X arrangements are not interchangeable by turning the set around: 32026T102X-DB in back-to-back (O) matched pair arrangement has its load-line geometry fixed — specify the arrangement from the shaft thermal and stiffness analysis.
- The 666/1080 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 32026T102 X/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 32026T102X-DB?
The SKF 32026T102 X/DB is a matched pair of single-row tapered roller bearings in back-to-back (O) matched pair arrangement with 130 mm bore, 200 mm outer diameter and 102 mm overall width (5.118 × 7.874 × 4.016 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 666 kN, C0 1080 kN, fatigue load limit Pu 110 kN, reference speed 2,000 r/min, limiting speed 3,000 r/min, mass about 10.50 kg.
What does the /DB suffix on 32026T102X-DB mean?
The base 32026T102 X 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 32026T102X-DB for one bearing or the pair?
They are for the complete matched pair: C 666 kN dynamic and C0 1080 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 32026T102 X table values.
Can 32026T102X-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 (m6 on a rotating 130 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 130 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.