T7FC065T80-DTC15 bearing: complete specifications & equivalents
The T7FC065T80-DTC15 is a ISO 355 radial bearing sized 65 x 130 x 80 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 65 mm |
| Outer diameter D | 130 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 332 kN |
| Basic static load rating C0 | 430 kN |
| Fatigue load limit Pu | 51 kN |
| Reference speed (thermal) | 3000 rpm |
| Limiting speed (mechanical) | 5000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 4800 g |
| Manufacturer designation | SKF T7FC 065T80/DTC15 |
| 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-dt-series range
| Bore d | 2.559 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 3.15 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 32.5 mm |
| Smallest bore in matched-dt-series | 45 mm |
| Largest outer diameter in matched-dt-series | 160 mm |
| Width range across matched-dt-series | 62–98 mm |
| Bore position in matched-dt-series (smallest first) | 5 of 6 |
| Bore above smallest matched-dt-series size | 20 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| T7FC065T80 | 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 T7FC065T80-DTC15 model number is decoded
Tandem pairing is the high-one-direction-thrust solution: the two cones of T7FC065T80-DTC15 share the axial load through the ground spacer, and the set is used where a single bearing of the 65 mm bore cannot carry the thrust component. Selection arithmetic: the catalogue C 332 kN and C0 430 kN are ratings of the complete pair, not of one bearing — never halve them back to a single-row figure when checking L10 life, and use the pair Pu 51 kN as the fatigue floor. Operating context for the 65 mm bore: a shaft of this diameter typically runs in the large-bore band of industrial duty, and the 130 mm OD places the housing shoulder near 138 mm outer abutment. Setting note for T7FC065T80-DTC15: the axial clearance is set at the factory by selective spacer grinding for the /DT execution; in service, re-checking end play after the first thermal cycle catches seating relaxation before it becomes roller skid. Do not separate T7FC065T80-DTC15 into single-bearing service stock — as individual bearings the components are not interchangeable with catalogue single-row executions because the rings are ground for the set.T7FC065T80-DTC15 (SKF T7FC 065T80/DTC15) is the tandem matched pair matched-set choice for a 65 mm shaft: a pair of tapered roller bearings whose combined envelope is 130×80 mm, delivered ready to mount with controlled internal clearance.Reading the designation: T7FC 065T80 is the ISO 355 single-row base bearing (65 mm bore), and the suffix /DT marks the matched-set execution — arrangement, spacer grinding and factory clearance class. The pair envelope is 65×130×80 mm; the width covers both bearings of the set.
Typical equipment & failure modes
Common applications
- rolling-mill auxiliary drives
- crane sheave and hoist gearboxes
- paper-machine and printing rolls
- marine deck machinery shafts
Known failure patterns
- uneven load sharing in a pair when spacer faces are not parallel to the bore
- false brinelling on idle paired sets exposed to machine vibration
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- rib-roller contact scoring from loss of the EP additive film
- mounting score marks when the cone is cocked over the shaft keyway or a burr
Selection pitfalls — read before you substitute
- A matched /DT set is ground as one system: never separate the two bearings of T7FC065T80-DTC15 or swap the spacer — the factory clearance is lost the moment the set is broken.
- Clamp the T7FC065T80-DTC15 pair axially through the cones, never through the rollers; pressing force across the roller complement brinells the raceways of both bearings at once.
- Setting is built into T7FC065T80-DTC15; the classic field error is re-adjusting a matched pair as if it were two loose single bearings, which destroys the /DT clearance class.
- The 332/430 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 T7FC 065T80/DTC15 designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of T7FC065T80-DTC15?
The SKF T7FC 065T80/DTC15 is a matched pair of single-row tapered roller bearings in tandem matched pair arrangement with 65 mm bore, 130 mm outer diameter and 80 mm overall width (2.559 × 5.118 × 3.15 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 332 kN, C0 430 kN, fatigue load limit Pu 51 kN, reference speed 3,000 r/min, limiting speed 5,000 r/min, mass about 4.80 kg.
What does the /DT suffix on T7FC065T80-DTC15 mean?
The base T7FC 065T80 is the ISO 355 single-row bearing; the /DT suffix marks the matched-set execution — the arrangement (tandem), 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 T7FC065T80-DTC15 for one bearing or the pair?
They are for the complete matched pair: C 332 kN dynamic and C0 430 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 T7FC 065T80 table values.
Can T7FC065T80-DTC15 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 65 mm shaft) and axial clamping through the cones; re-setting in the field destroys the matched clearance class.
When should a tandem matched set be chosen?
Choose the tandem set where one-direction thrust exceeds a single bearing's capacity — the two rows share the thrust, while a separate opposing bearing or set must cover the other direction.
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.