32006 bearing: complete specifications & equivalents
The 32006 is a ISO 355 radial bearing sized 30 x 55 x 17 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 30 mm |
| Outer diameter D | 55 mm |
| Width B | 17 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 46 kN |
| Basic static load rating C0 | 47 kN |
| Fatigue load limit Pu | 7.1 kN |
| Reference speed (thermal) | 7900 rpm |
| Limiting speed (mechanical) | 16100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 173 g |
| Manufacturer designation | 32006-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 | 1.181 in |
|---|---|
| Outer diameter D | 2.165 in |
| Width B | 0.669 in |
| ISO bore code | 06 |
| Radial section height (D−d)/2 | 12.5 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) | 5 of 43 |
| Bore above smallest 32000-series size | 10 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 32006 | 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. |
| 32006-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 32006 model number is decoded
FAG 32006 (32006-X-XL) is the low-friction section tapered roller choice for a 30 mm shaft — one row of tapered rollers on an asymmetric raceway inside the 55×17 mm ISO 355 envelope.Reading the designation: the leading 3 marks a single-row tapered roller bearing, the 2 is the ISO 355 diameter/width series (low-friction section), and the last two digits encode the 30 mm bore; the 55 mm OD and 17 mm width follow the ISO 355 general plan. In Schaeffler notation 32006-X-XL is the basic X-life execution; B-suffix variants have a steeper contact angle and are not interchangeable with the base bearing. The 7.1 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.02 C0/C balance shows this execution is tuned to thrust-heavy combined loads rather than pure radial running. For a 30 mm shaft the usual cone seat is k5 with an H7 housing when the inner ring rotates; arrange two 32006 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
- belt-driven fan and blower shafts
- axle-boxes in material-handling equipment
- automotive and light-truck wheel hubs
- industrial gearbox shafts and reducers
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
- thermal preload runaway in an O-arrangement pair when inner-ring heat expands the setting
- uneven load sharing in a pair when spacer faces are not parallel to the bore
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- edge loading from shaft deflection or housing misalignment
Selection pitfalls — read before you substitute
- On this 30 mm bore, interference and temperature rise consume clearance inside a preloaded pair; calculate the residual clearance after mounting and at operating temperature — an over-tight 32006 pair heats, loses setting control and smears the roller-rib contact.
- The 320 series at 30 mm bore (55×17 mm) is the low-friction, higher-speed section; it carries less thrust than a 30206 of the same bore, so verify the axial load share before swapping.
- The tapered contact angle creates an induced axial load under pure radial force; include it in the 32006 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
- A single 32006 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 32006 shares its ISO 355 envelope with other tapered bearings of the same code but is not a drop-in replacement for a ball bearing: it cannot run effectively under pure radial load without a minimum axial load, and a deep-groove bearing cannot replace its combined-load duty.
- The 46/47 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 32006 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 32006?
The 32006-X-XL is a single-row tapered roller bearing with 30 mm bore, 55 mm outer diameter and 17 mm width (1.181 × 2.165 × 0.669 in) per ISO 355. From Schaeffler HR1 (2022 edition): basic dynamic load rating C 46 kN, C0 47 kN, fatigue load limit Pu 7.1 kN, reference speed 7,900 r/min, limiting speed 16,100 r/min, mass about 173 g. It is an open, separable bearing with a pressed-steel cage.
How does the 32006 bore code work?
The last two digits of 32006 are bore code 06, so 06 × 5 = 30 mm bore. The 55 mm OD and 17 mm width come from the ISO 355 dimension-series plan, shared with other tapered bearings of the same code.
What do the 32006 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 32006 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 32006 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 32006 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.