332168 bearing: complete specifications & equivalents
The 332168 is a ANSI ABMA 19.2 radial bearing sized 300 x 440 x 105 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 300 mm |
| Outer diameter D | 440 mm |
| Width B | 105 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1076 kN |
| Basic static load rating C0 | 2040 kN |
| Fatigue load limit Pu | 180 kN |
| Operating temperature | -40 to +120 °C |
| Mass | 48500 g |
| Manufacturer designation | SKF 332168 |
| Standard | ANSI ABMA 19.2 |
| 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 & tdi-series range
| Bore d | 11.811 in |
|---|---|
| Outer diameter D | 17.323 in |
| Width B | 4.134 in |
| ISO bore code | 68 |
| Radial section height (D−d)/2 | 70 mm |
| Smallest bore in tdi-series | 203.2 mm |
| Largest outer diameter in tdi-series | 595 mm |
| Width range across tdi-series | 84–263.525 mm |
| Bore position in tdi-series (smallest first) | 4 of 25 |
| Bore above smallest tdi-series size | 96.80000000000001 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 332168 | 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 332168 model number is decoded
Ordering discipline for 332168: quote base number and TDIS/NY variant together — the base alone is ambiguous because several internal executions share the same 300 mm bore boundary. TDI mounting: the double cone takes the m6 shaft seat at 300 mm bore, and the two single cups are seated separately in the housing — check cup-face contact around the full circumference before axial clamping.SKF 332168 belongs to the SKF TDI double-row range — the 300 mm bore entry with a 440 mm outside diameter and 105 mm overall width, typical for rolling-mill and heavy industrial shafts.Numbering for double-row tapered bearings is works-specific: 332168 denotes the envelope (300 mm bore, 440 mm OD, 105 mm width) and the suffix the internal design — two bearings with the same base number but different variants are not interchangeable without checking the variant meaning. Clearance note for 332168: the operating clearance is set at the factory by spacer grinding between the two rows; the TDIS/NY variant encodes that setting, so the unit mounts without any adjustment — the assembler only verifies seat contact and clamps axially. Static check: with C0 2040 kN the unit carries shock and standstill load up to the static safety factor of the application; the 180 kN Pu governs the fatigue side of the same calculation. Journal and housing interface: the 300 mm bore takes a m6 shaft seat and the 440 mm outside diameter pairs with an H7 housing bore; the 105 mm width defines shoulder depth and the 48500 g mass is the dead load in thermal-growth calculations.
Typical equipment & failure modes
Common applications
- rolling-mill roll-neck bearings
- heavy-duty rolling-mill gearboxes
- large crusher and mineral-processing drives
- wind-turbine main shafts
Known failure patterns
- brinelling of both raceways when mounting force is transmitted through the roller complement
- brinelling of both raceways when mounting force is transmitted through the roller complement
- 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
- rib-roller contact scoring from loss of the EP additive film
Selection pitfalls — read before you substitute
- The 300 mm bore seat must be checked for ovality before mounting — at this size a worn seat lets the cone creep, and fretting debris then works between the rows of 332168.
- Lifting 332168 by one ring separates the assembly; sling through the 300 mm bore or use the shaft as the lifting member.
- Do not mix components between units of the same 332168 base number: cones, cups and spacers are matched per serial — interchange only complete assemblies.
- The 1076/2040 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 332168 designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of 332168?
The SKF 332168 is a double-row tapered roller bearing of TDI design with 300 mm bore, 440 mm outer diameter and 105 mm overall width (11.811 × 17.323 × 4.134 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1076 kN, C0 2040 kN, fatigue load limit Pu 180 kN, mass about 48.50 kg.
What does the TDIS/NY variant code on 332168 mean?
Double-row tapered bearings of this size follow SKF works numbering: the base number 332168 fixes the 300×440×105 mm envelope, and the TDIS/NY code identifies the internal design variant — spacer execution, rib detail and clearance class. Same-envelope units under a different variant are not interchangeable without checking the variant meaning.
Why does the catalogue list no speed rating for 332168?
Bearings of this size class run in slow, heavily loaded machinery where the permissible speed is set by the application heat balance rather than a universal table value. Plan lubrication and cooling against the 48.5 kg assembly mass and instrument the first run with temperature logging.
Can components of 332168 be interchanged with another unit of the same base number?
No — cones, cups and spacers of a double-row set are matched per serial and the clearance is set by selective grinding at the factory. Replace 332168 as a complete assembly in the same TDIS/NY variant.
How does 332168 react axial load?
The TDI design works as a fixed O arrangement: one double cone between two single cups gives a wide load spread and high moment stiffness while reacting thrust in both directions through the two rows.
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.