32016 bearing: complete specifications & equivalents
The 32016 is a ISO 355 radial bearing sized 80 x 125 x 29 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 80 mm |
| Outer diameter D | 125 mm |
| Width B | 29 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 162 kN |
| Basic static load rating C0 | 212 kN |
| Fatigue load limit Pu | 34.5 kN |
| Reference speed (thermal) | 3450 rpm |
| Limiting speed (mechanical) | 6600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1290 g |
| Manufacturer designation | 32016-X-XL |
| Standard | ISO 355 |
| Catalog version | Schaeffler HR1 (2022 ed.), Tapered roller bearings DIN/ISO 355 |
| Last verified | 2026-09-26 |
Source: catalog reference (Schaeffler HR1 (2022 ed.), Tapered roller bearings DIN/ISO 355) · extracted 2026-09-26
Parameters extracted from the official FAG Rolling Bearings catalogue (Schaeffler HR1 (2022 ed.), Tapered roller bearings DIN/ISO 355); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.
Dimensions in inches & 32000-series range
| Bore d | 3.15 in |
|---|---|
| Outer diameter D | 4.921 in |
| Width B | 1.142 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 22.5 mm |
| Smallest bore in 32000-series | 20 mm |
| Largest outer diameter in 32000-series | 650 mm |
| Width range across 32000-series | 15–130 mm |
| Bore position in 32000-series (smallest first) | 16 of 43 |
| Bore above smallest 32000-series size | 60 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 32016 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier. |
| 32016-SKF | SKF | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
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 32016 model number is decoded
The 32016-X-XL is a 80×125×29 mm single-row tapered roller bearing — the low-friction section entry in the 32000 series, with an asymmetric raceway cut for thrust capacity and separable mounting.Numbering ties the bearing to its envelope: 32016 means tapered-roller type 3, low-friction section series 2, 80 mm bore — which is why the 125×29 mm outline swaps dimensionally with other ISO 355 bearings of the same code. In Schaeffler notation 32016-X-XL is the basic X-life execution; B-suffix variants have a steeper contact angle and are not interchangeable with the base bearing. At 3,450 r/min reference speed the 22.5 mm-section 32016 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 6,600 r/min as the mechanical ceiling. Because the contact line is tapered, one 32016 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 80 mm shaft typically takes a k5 seat with an H7 housing bore.
Typical equipment & failure modes
Common applications
- marine deck machinery shafts
- heavy industrial gearboxes and speed reducers
- large process pump and compressor shafts
- rolling-mill auxiliary drives
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
- false brinelling on idle paired sets exposed to machine vibration
- roller large-end smearing against the cone rib after EP lubricant film failure
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- hard-particle indentation of the tapered raceway in unfiltered oil
Selection pitfalls — read before you substitute
- Mount the 80 mm bore 32016 by induction heating of the cone (max 120 °C — the pressed-steel cage sets the ceiling, not the steel); driving it home through the cup or rollers brinells the tapered raceway.
- The 320 series at 80 mm bore (125×29 mm) is the low-friction, higher-speed section; it carries less thrust than a 30216 of the same bore, so verify the axial load share before swapping.
- A single 32016 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.
- At the 162 kN rating of 32016, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 6,600 r/min speed end and heavier preload only where moment stiffness dominates.
- Shaft and housing fillets must clear the bearing chamfer so the 29 mm-wide cup seats square; use an undercut or withdrawal groove rather than an oversized radius that locks on the ring face.
- The 162/212 kN ratings are Schaeffler HR1 values for the X-life execution; the -XL suffix denotes the premium grade and is part of the order designation, so quote it in full when purchasing.
- Schaeffler lists 32016 in the X-life basic execution; variant executions with -B or other suffixes are separate order numbers and are not interchangeable with the basic X-life bearing.
Frequently asked questions
What are the dimensions and catalogue data of 32016?
The 32016-X-XL is a single-row tapered roller bearing with 80 mm bore, 125 mm outer diameter and 29 mm width (3.15 × 4.921 × 1.142 in) per ISO 355. From Schaeffler HR1 (2022 edition): basic dynamic load rating C 162 kN, C0 212 kN, fatigue load limit Pu 34.5 kN, reference speed 3,450 r/min, limiting speed 6,600 r/min, mass about 1290 g. It is an open, separable bearing with a pressed-steel cage.
How does the 32016 bore code work?
The last two digits of 32016 are bore code 16, so 16 × 5 = 80 mm bore. The 125 mm OD and 29 mm width come from the ISO 355 dimension-series plan, shared with other tapered bearings of the same code.
What do the 32016 series and X-life execution designations mean?
The leading 3 marks a single-row tapered roller bearing; the second digit 2 is the ISO 355 series (low-friction section). The FAG -XL suffix denotes X-life premium grade; the ISO 355 series code is interchangeable with other brands. A steeper-contact-angle variant (B suffix) is a different order number and is not interchangeable with the basic execution.
Can a single 32016 take axial load in both directions?
No — one single-row tapered roller bearing reacts thrust in one direction only, and under radial load its contact angle induces an axial force. Use two bearings as a matched pair: O (back-to-back) for a rigid, moment-resisting arrangement, X (face-to-face) where thermal expansion must be tolerated, or tandem where one-direction thrust is shared.
How does 32016 compare with a ball bearing of the same bore?
A tapered roller bearing has line contact and a steep contact angle: much higher combined axial-plus-radial capacity and shock resistance than a ball bearing of the same bore, at the cost of speed, one-direction thrust, mandatory pairing for reversing loads and a minimum axial load requirement. A ball bearing cannot be dropped into a combined-load 32016 position and vice versa — verify load direction, Fa/Fr ratio and speed before substituting.
Reviewed & verified by the MPN Base engineering desk against source catalog Schaeffler HR1 (2022 ed.), Tapered roller bearings DIN/ISO 355 on 2026-09-26. Read our editorial & correction policy.