Timken21314EJW33C3Double Row Spherical Roller Bearing 70 x 150 x 35 mm, Straight Bore, Steel Cage, C3, W33

Product Description

What this part is

A Timken 21314-EJ-W33-C3 double-row spherical roller bearing — 70 mm straight bore, 150 mm outside diameter, 35 mm wide, pressed steel cage, C3 internal clearance, with the W33 lubrication groove and holes in the outer ring.

Decoding the designation

21314 — double-row spherical roller, dimension series 13: the narrow, low cross-section spherical family
EJ — Timken increased-capacity internal design with a pressed steel cage
W33 — lubrication groove in the outer ring plus three radial holes
C3 — radial internal clearance greater than normal
No K suffix — straight bore, not tapered

What these specs mean in practice

A double-row spherical roller self-aligns on its spherical outer raceway, absorbing shaft deflection and housing misalignment, and it takes thrust in both directions. The 213 series is the shallow-section variant: it fits a smaller housing envelope for a given bore than a 222 or 223, and it trades some misalignment allowance and thrust capacity for that compactness — which is why it is chosen where the housing bore is fixed and there is no room for the taller series. C3 clearance leaves running room for thermal growth and for an interference fit on the shaft. The pressed steel cage keeps the price and mass down against a machined brass cage, at a lower shock-load and temperature ceiling.

Published ratings and mounting data

Bore: 70 mm, straight (cylindrical)
Outside diameter: 150 mm
Width: 35 mm
Dynamic load rating C: 291 kN
Static load rating C0: 325 kN
Limiting speed: 4000 rpm
Operating temperature range: −30 °C to 200 °C
Rows: 2
Rolling element: spherical (barrel) roller
Cage: pressed steel
Internal clearance: C3
Tolerance class: ISO Normal
Relubrication: W33 outer-ring groove with three radial holes
Closure: open
Axial capacity: both directions

Quantity and configuration

1 Pc. Complete bearing — outer ring, two spherical roller rows with the steel cage, straight-bore inner ring.

Interchange guidance

The ISO base number 21314 identifies the same envelope and section across brands: SKF 21314 E/C3, FAG 21314-E1-C3 and NTN 21314C3 are the same 70 × 150 × 35 mm size at the same clearance. A 22314 or 23314 shares the 70 mm bore but is a taller cross-section with a different outside diameter and width, so those are related sizes rather than substitutes. A 21314K is the tapered-bore version, mounted on an adapter sleeve.