1380-1328 bearing: complete specifications & equivalents

The 1380-1328 is a ISO 355 radial bearing sized 22.225 x 52.388 x 19.368 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 52.388 mm d = 22.225 B = 19.368 mm side section front view
Principal dimensions: bore d 22.225 mm, outer diameter D 52.388 mm, width B 19.368 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 22.225 mm
Outer diameter D 52.388 mm
Width B 19.368 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage steel, stamped ribbon (J-type)
Basic dynamic load rating C 51.5 kN
Basic static load rating C0 44 kN
Fatigue load limit Pu 4.8 kN
Reference speed (thermal) 11000 rpm
Limiting speed (mechanical) 14000 rpm
Operating temperature -40 to +120 °C
Mass 200 g
Manufacturer designation SKF 1380/1328
Standard ISO 355
Catalog version SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB
Last verified 2026-09-28

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB) · extracted 2026-09-28

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch 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 & 1300-series range

Bore d 0.875 in
Outer diameter D 2.063 in
Width B 0.763 in
ISO bore code —
Radial section height (D−d)/2 15.1 mm
Smallest bore in 1300-series 22.225 mm
Largest outer diameter in 1300-series 52.388 mm
Width range across 1300-series 19.368–19.368 mm
Bore position in 1300-series (smallest first) 1 of 1
Bore above smallest 1300-series size 0 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
1380-1328-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 22.225×52.388×19.368 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting.
1380-1329 NTN verify
Commonly quoted cross reference; confirm against the target catalog before ordering.
Model-number interchange per ISO 15; confirm dimensions, sealing and ratings in the supplier catalogue.
1380-1328 Timken full
Dimensions and internal design equivalent — standard interchange.
Same inch-series cone/cup boundary envelope (d/D/T); load ratings and speed limits are brand-specific and may differ.

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 1380-1328 model number is decoded

Operating context for the 22.225 mm bore: a shaft of this diameter in the small-bore band typically runs between 17780 and 26670 r/min in real machinery, and the 52.388 mm outside diameter places the housing shoulder at 60 mm outer abutment; the 19.368 mm width and 200 g mass together set the shaft critical speed and the housing resonance check for this 13800-series envelope. The cup reference 1328 is structural, not a suffix: it identifies the outer ring that, combined with the 1380 cone, produces the 22.225/52.388/19.368 mm envelope catalogue-listed as 1380. Quote the cup number in full when ordering — the 1300-series tables contain other cups that fit the same cone but change the bearing.SKF 1380 (SKF 1380/1328) is the 1300-series tapered roller choice for a 22.225 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 52.388×19.368 mm envelope.The 1300-series series assigns 22.225 mm bore, 52.388 mm OD and 19.368 mm width to 1380; the cone and cup references are not interchangeable with other inch-series pairs even when the bore matches, because the cup profile and rib geometry are series-specific. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. With C 51.5 kN and C0 44 kN, the 1380 pair-sizing check is dominated by the axial share: keep the equivalent load P below the rating at the required L10, remembering one bearing alone cannot cover reversing thrust at 14,000 r/min. For a 22.225 mm shaft the usual cone seat is k5 with an H7 housing when the inner ring rotates; arrange two 1380 bearings as a set for two-direction location and set clearance from the load diagram, never from assembly feel.

Typical equipment & failure modes

Common applications

  • small conveyor drive pulleys
  • power-tool gear heads
  • small automotive wheel hubs and trailer axles
  • light-duty gearbox input/output shafts

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
  • preload loss as the mounted pair relaxes, letting rollers skid and smear the raceways
  • cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
  • electrical pitting on VFD-driven shafts without grounding protection

Selection pitfalls — read before you substitute

  • At a 22.225 mm bore the thin cone and cup are easily distorted by an over-tight shaft nut; check seat runout (target Ra ≤ 0.8 µm) and torque the locknut progressively — a pinched 1380 shows up as gearbox vibration long before it fails.
  • The 1300-series inch series at 22.225 mm bore (52.388×19.368 mm) follows the Timken cone/cup convention; substitutions must match both the cone and cup reference exactly — interchanging with another series or a metric 3xxxx bearing of the same bore changes OD, width and contact angle, so re-run the pair setting and shoulder-diameter checks before swapping.
  • A single 1380 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.
  • A single 1380 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 200 g mass and 19.368 mm width mean spacer and abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the contact angle and concentrates load on one rib of 1380.
  • The 51.5/44 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 1380 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 1380/1328 designation when purchasing and match the execution to the mounting arrangement.

Frequently asked questions

What shaft and housing fits suit 1380?

For a rotating shaft under normal load, seat the cone on a k5 shaft fit; the cup is usually a loose-to-transition fit in the housing so it can creep slightly and distribute wear. Chamfer and shoulder diameters must clear the bearing rings so the 19.368 mm-wide cup seats square; the mounting setting (end play or preload) is set by the axial position of the cup relative to the cone.

Is 1380 interchangeable with other brands?

Inch-series tapered roller bearings follow a long-standing industry boundary plan, so cones and cups of the same basic number are generally dimensionally interchangeable across manufacturers. However, internal geometry, cage design and load ratings differ by brand, so for paired or precision applications keep both halves of the set from one manufacturer — or re-verify ratings and setting when mixing.

What are the dimensions and catalogue data of 1380?

The SKF 1380/1328 is a single-row tapered roller bearing with 22.225 mm bore, 52.388 mm outer diameter and 19.368 mm width (0.875 × 2.063 × 0.763 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 51.5 kN, C0 44 kN, fatigue load limit Pu 4.8 kN, reference speed 11,000 r/min, limiting speed 14,000 r/min, mass about 200 g. It is an open, separable bearing with a pressed-steel cage.

How does the 1380 inch-series designation work?

Inch-series tapered roller bearings use a Timken-style cone/cup convention: the number before the slash identifies the cone (inner ring with roller and cage assembly), the number after the slash identifies the cup (outer ring), and the 1300-series code marks the dimensional series. The metric dimensions 22.225×52.388×19.368 mm are the converted equivalents of the original inch boundary dimensions.

What do the cone and cup numbers in 1380 mean?

The cone number (before the slash) identifies the inner ring, rollers and cage; the cup number (after the slash) identifies the outer ring. Both are quoted together because a single-row tapered roller bearing is a matched separable pair — the cone and cup are ground to work together and are not interchangeable with arbitrary other parts. The series prefix (1300-series) groups sizes that share the same boundary-dimension plan.

Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB on 2026-09-28. Read our editorial & correction policy.