PWTR-2562-2RS bearing: complete specifications & equivalents
The PWTR-2562-2RS is a ISO 15 radial bearing sized 25 x 62 x 25 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 25 mm |
| Outer diameter D | 62 mm |
| Width B | 25 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 29.2 kN |
| Basic static load rating C0 | 36 kN |
| Fatigue load limit Pu | 4.05 kN |
| Limiting speed (mechanical) | 3200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 450 g |
| Manufacturer designation | PWTR 2562.2RS |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers |
| Last verified | 2026-09-30 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers) · extracted 2026-09-30
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers); 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 & PWTR-series range
| Bore d | 0.984 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 0.984 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 18.5 mm |
| Smallest bore in PWTR-series | 15 mm |
| Largest outer diameter in PWTR-series | 110 mm |
| Width range across PWTR-series | 19–32 mm |
| Bore position in PWTR-series (smallest first) | 4 of 9 |
| Bore above smallest PWTR-series size | 10 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| PWTR | 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 PWTR-2562-2RS model number is decoded
the 62 mm outside diameter runs on the track while the 25 mm bore takes the pin or shaft; the 25 mm overall width spreads the Hertzian contact over the outer ring published ratings C 29.2 kN and C0 36 kN already include the bending-stress correction for the unsupported outer ring — the C/C0 ratio of 0.81 is typical for sealed double-row full-complement support roller with integral flanges executions fatigue load limit Pu 4.05 kN at 25 mm bore gives a specific load of 1.17 kN per mm; the limiting speed is 3,200 r/min the 25 mm width carries the load at 1.17 kN per mm of roller complement; section height 18.5 mm between bore and track surface determines the outer-ring bending stiffness mass 450 g over a 62x25 mm envelope works out to 0.290 g per mm² of projected area — a useful figure when sizing the drive inertia for medium-speed cam duty the 25 mm bore puts this in the small-to-medium transition where the roller complement is still needle-type but the outer ring is thick enough for moderate shock loads reading PWTR..2RS: sealed twin-row cylindrical roller support roller; the integral flanges and contact seals protect the 62 mm track roller from wash-down and dust typical applications include robotic arm track guidance, paper mill web guide rollers and automatic assembly machine linkages this size is commonly specified for robotic arm track guidance and paper mill web guide rollers, where the 62 mm track diameter and 25 mm bore fit standard cam and rail geometries in automatic assembly machine linkages the 62 mm outer ring provides the rolling contact while the inner ring bore simplifies mounting; the 450 g mass is low enough for rapid indexing cycles the sealed twin-row construction is the heaviest support roller option — verify the drive torque can accelerate the roller at the required cam profile rate the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism
Typical equipment & failure modes
Common applications
- conveyor transfer and diverting rollers
- robotic arm track guidance
- woodworking machinery feed rollers
- cam mechanisms and indexing drives
Known failure patterns
- the 2RS seals protect the roller rows but limit relubrication options; the unit is effectively sealed for life
- the integral flanges and seals add width; verify the track channel accommodates the full B dimension plus flange protrusion
- sealed full-complement rollers are the heaviest option — check that the drive can accelerate the mass at the required cam rate
- the sealed twin-row construction is the heaviest support roller option — verify the drive torque can accelerate the roller at the required cam profile rate
- the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism
- the sealed outer ring cannot be inspected without destroying the seals; plan replacement on a time or cycle basis rather than condition monitoring
Selection pitfalls — read before you substitute
- sealed full-complement rollers are the heaviest option — check that the drive can accelerate the mass at the required cam rate
- the sealed twin-row construction is the heaviest support roller option — verify the drive torque can accelerate the roller at the required cam profile rate
- the 2RS seals limit relubrication; the grease fill must last the design life of the cam mechanism
Frequently asked questions
What are the dimensions of the PWTR-2562.2RS?
PWTR-2562.2RS is a sealed double-row full-complement support roller with integral flanges with 62 mm outside diameter, 25 mm bore diameter and 25 mm overall width. The bore is 25 mm and the track contact diameter is 62 mm.
What does the PWTR designation mean?
The PWTR prefix identifies this as a sealed double-row full-complement support roller with integral flanges. In the SKF catalogue this designation carries the full specification including the 62x25x25 mm envelope and the 3200 r/min limiting speed.
What is the load capacity of PWTR-2562.2RS?
The published basic dynamic load rating C is 29.2 kN and the basic static load rating C0 is 36 kN. These values already include the bending-stress correction for the thick-walled outer ring running on a track.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 15 support rollers / ch. 16 cam followers on 2026-09-30. Read our editorial & correction policy.