53214 bearing: complete specifications & equivalents
The 53214 is a ISO 104 radial bearing sized 70 x 105 x 27 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 70 mm |
| Outer diameter D | 105 mm |
| Width B | 27 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 62.4 kN |
| Basic static load rating C0 | 160 kN |
| Fatigue load limit Pu | 5.85 kN |
| Reference speed (thermal) | 2600 rpm |
| Limiting speed (mechanical) | 3600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 970 g |
| Manufacturer designation | 53214 |
| Standard | ISO 104 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-28 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-28
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); 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 & 53200-series range
| Bore d | 2.756 in |
|---|---|
| Outer diameter D | 4.134 in |
| Width B | 1.063 in |
| ISO bore code | 14 |
| Radial section height (D−d)/2 | 17.5 mm |
| Smallest bore in 53200-series | 12 mm |
| Largest outer diameter in 53200-series | 200 mm |
| Width range across 53200-series | 11.4–48.6 mm |
| Bore position in 53200-series (smallest first) | 14 of 23 |
| Bore above smallest 53200-series size | 58 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 51214-SKF | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 70×105×27 mm ISO 104 thrust-ball envelope with catalogue ratings within 10 %; 51214 is the single-direction flat-seat, stamped sheet-steel cage execution of this size — boundary dimensions interchangeable, execution differs. Bearing heights match, but this sphered SKF execution additionally needs its U 214 seat washer and stands 32 mm (H1) when mounted. |
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 53214 model number is decoded
53214 is SKF's 70 mm-bore single-direction thrust ball bearing in the 53200 series to the ISO 104 dimension plan, with a sphered housing washer paired to a U seat washer, measuring 70×105×27 mm U 214 seat washer companion included in the mounted H1 dimension. The separable set comprises a shaft washer (ground bore, tight fit on the shaft), a loose-bore housing washer and one ball-cage assembly, reacting axial force in one direction and carrying no radial load. in the 53xxx designation the 3 marks a single-direction bearing whose housing washer has a sphered (convex) seating surface, intended to run against the matching U seat washer; the third digit 2–4 grades the section. the final two digits 14 encode the bore as 70 mm (code 14 × 5), the standard SKF bore-code rule shared with radial bearings. with no cage suffix this is the standard execution with a stamped sheet-steel ball-cage assembly (pressed cage) — the light, quiet and economical cage for small and medium thrust-ball sizes. Envelope 70×105×27 mm (2.756×4.134×1.063 in), 17.5 mm radial section, C 62.4 kN, C0 160 kN, Pu 5.85 kN. Mounted height H1 32 mm includes the U 214 seat washer; the bearing alone is 27 mm high. reference speed 2,600 r/min (thermal) and limiting speed 3,600 r/min (mechanical), catalogue mass 970 g. Pitch-diameter arithmetic: dm = (70+105)/2 = 87.5 mm; at the 3,600 r/min limiting speed that corresponds to roughly 315k mm·r/min, the figure used when comparing cage speed demand across the thrust-ball series. Selection figures for 53214: the C0/C ratio is 2.56, Pu 5.85 kN is about 9 % of C, and the catalogue mass works out to roughly 14 g per millimetre of bore; the printed minimum-load factor is A 0.16. Capacity density: 62.4 kN C from 0.970 kg of bearing steel gives about 64.3 kN per kilogram; static density is correspondingly 164.9 kN/kg at C0 160 kN. Speed band width for this size is 1,000 r/min between reference and limiting (1.38× ratio); lubrication, preload and heat removal decide where inside that band 53214 can actually run. Envelope economics: the 27 mm axial height over a 17.5 mm radial section yields 2.3 kN of dynamic capacity per height millimetre, and the bearing weighs 970 g for 62.4 kN C — about 16 g per rated kN. Sphered-seating order-number note: the convex back face of the housing washer is finish-ground spherical and is delivered to mate with the separately ordered U seat washer, which presents a flat face to the housing and a concave face to the washer; together they accommodate initial static misalignment, but the pair must be kept clean, greased at the spherical interface and never replaced by a washer-on-flat-steel makeshift. Procurement reminder for this specific page: 53214 and U 214 are two order numbers shipping as two articles; the installed 32 mm H1 rather than 27 mm H is the dimension the housing drawing must carry.
Typical equipment & failure modes
Common applications
- vertical process pumps on welded housings
- marine deck-machinery pivots
- heavy hook blocks and lifting equipment
Known failure patterns
- ball skidding and track smearing once the applied thrust falls below the catalogue minimum axial load at high speed
- cage damage from mounting force applied through the balls instead of the washer face
- tilted running after a mismatched U washer leaves only a narrow band of spherical contact
- point-contact gouging of the housing face when the sphered washer is run without its U seat washer
- overheating from grease overfill churning inside a sealed housing recess with no escape volume
- electrical discharge pitting when the shaft current passes through the ball contacts instead of a grounding brush
Selection pitfalls — read before you substitute
- The self-aligning feature is checked at commissioning by hand: with the shaft under no load the assembly must swivel and settle; a stiff spherical seat means dirt, a mismatched U washer, or a register bored off-axis.
- Replacement orders must list both 53214 and U 214: the seat washer is a separate article, and a U washer of the wrong size narrows the contact band of the 160 kN static-rated set.
- Minimum axial load still applies with factor A 0.16: a self-aligning seat does not prevent ball skidding, so provide spring preload or sufficient rotor weight at light load and speed.
- The shaft washer remains the tight, ground-bore component on the 70 mm shaft; the sphered part is the HOUSING washer, and the U seat washer is the loose flat-backed part — the fitting order is shaft washer and cage set first, then housing washer and U 214 into the register.
- Ordering discipline for 53214: the catalogue page quotes 53214 plus U 214 and its 62.4/160 kN ratings as one exact article; bare-number substitutions from another series or brand need a fresh dimension and rating check, not a like-for-like assumption.
Frequently asked questions
What are the dimensions and catalogue data of 53214?
53214 measures 70 mm bore × 105 mm OD × 27 mm bearing height (2.756 × 4.134 × 1.063 in), or 32 mm mounted H1 including the U 214 seat washer, mass about 970 g. SKF 17000 ratings: C 62.4 kN, C0 160 kN, Pu 5.85 kN, reference speed 2,600 r/min (thermal) and limiting speed 3,600 r/min (mechanical).
What does the designation 53214 mean?
in the 53xxx designation the 3 marks a single-direction bearing whose housing washer has a sphered (convex) seating surface, intended to run against the matching U seat washer; the third digit 2–4 grades the section. the final two digits 14 encode the bore as 70 mm (code 14 × 5), the standard SKF bore-code rule shared with radial bearings. with no cage suffix this is the standard execution with a stamped sheet-steel ball-cage assembly (pressed cage) — the light, quiet and economical cage for small and medium thrust-ball sizes. 5 = thrust ball bearing, 3 = single direction with sphered seating surface.
Why does 53214 need a U 214 seat washer?
The housing washer of 53214 has a sphered back face. The U 214 seat washer presents a matching concave face plus a flat housing face, and without it the convex washer contacts the register at a single point; the pair is what gives the bearing its initial-misalignment capacity.
Is the U 214 seat washer supplied in the box?
The U seat washer is a separate order number: 53214 and U 214 are specified independently, so quote both on the purchase order — a sphered bearing without its matched seat cannot be installed correctly.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-28. Read our editorial & correction policy.