482-472 bearing: complete specifications & equivalents
The 482-472 is a ISO 355 radial bearing sized 69.85 x 120 x 29.795 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 69.85 mm |
| Outer diameter D | 120 mm |
| Width B | 29.795 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 163 kN |
| Basic static load rating C0 | 186 kN |
| Fatigue load limit Pu | 21.6 kN |
| Reference speed (thermal) | 4500 rpm |
| Limiting speed (mechanical) | 5300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1350 g |
| Manufacturer designation | SKF 482/472 |
| Standard | ISO 355 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB |
| Last verified | 2026-09-28 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB) · extracted 2026-09-28
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB); 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 & 475-series range
| Bore d | 2.75 in |
|---|---|
| Outer diameter D | 4.724 in |
| Width B | 1.173 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 25.1 mm |
| Smallest bore in 475-series | 69.85 mm |
| Largest outer diameter in 475-series | 120 mm |
| Width range across 475-series | 29.795–29.795 mm |
| Bore position in 475-series (smallest first) | 1 of 1 |
| Bore above smallest 475-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 482-472-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 69.85×120×29.795 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 482-472 | Timken | full Dimensions and internal design equivalent — standard interchange. | Same inch-series cone/cup boundary envelope (d/D/T); load ratings and speed limits are brand-specific and may differ. |
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 482-472 model number is decoded
Because the contact line is tapered, one 482 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 69.85 mm shaft typically takes a k5 seat with an H7 housing bore. Material and manufacturing detail: the 1350 g catalogue mass reflects through-hardened bearing steel (density ~7.85 g/cm³) machined to the 48200 ISO envelope, with the pressed-steel cage contributing roughly 41 g of the total; the 69.85 mm bore is ground to IT5 roundness and the 120 mm OD to IT5 cylindricity, and the 29.795 mm width tolerance keeps the pair-setting scatter within the ISO preload class. Two catalogue entries share the 482 cone but use different cups; this one, 482, takes the 472 cup and is ground for the resulting 120 mm OD / 29.795 mm width envelope. Selecting a sibling cup produces a different boundary plan and a different order number, so the full designation is required at purchase.Ordering number SKF 482/472 in SKF catalogue PUB BU/P1 17000 denotes a single-row tapered roller bearing for a 69.85 mm shaft, inch series, with an open pressed-steel-cage execution and one-direction axial capacity.On the SKF nameplate, 482 denotes a matched cone-and-cup pair: the designation is not a single number but a cone reference and cup reference joined by a slash, with the 475-series marking the dimensional series. The SKF catalogue adds the ISO 355 dimension-series code after the bare number (e.g. ); it is the dimensional series, not a separate part number. At 4,500 r/min reference speed the 25.1 mm-section 482 is governed thermally by preload and lubricant flow; grease or oil selection should be made against that value, with 5,300 r/min as the mechanical ceiling.
Typical equipment & failure modes
Common applications
- rolling-mill auxiliary drives
- crane sheave and hoist gearboxes
- paper-machine and printing rolls
- crane sheave and hoist gearboxes
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
- roller large-end smearing against the cone rib after EP lubricant film failure
- false brinelling on idle paired sets exposed to machine vibration
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- rolling-contact fatigue spalling after the rated L10 life is exceeded
Selection pitfalls — read before you substitute
- Mount the 69.85 mm bore 482 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 475-series inch series at 69.85 mm bore (120×29.795 mm) follows the Timken cone/cup convention; substitutions must match both the cone and cup reference exactly — interchanging with another series or a metric 3xxxx bearing of the same bore changes OD, width and contact angle, so re-run the pair setting and shoulder-diameter checks before swapping.
- O (back-to-back) pairs are stiffer against moments, X (face-to-face) pairs tolerate misalignment and thermal growth better; choosing the arrangement from the 2D drawing rather than the actual shaft thermal expansion is a common 482 mounting error.
- A single 482 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 1350 g mass and 29.795 mm width mean spacer and abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the contact angle and concentrates load on one rib of 482.
- The 163/186 kN ratings are SKF catalogue 17000 values for the basic 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 and re-verify for critical drives.
- SKF lists several executions of 482 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 482/472 designation when purchasing and match the execution to the mounting arrangement.
Frequently asked questions
How does 482 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 482 position and vice versa — verify load direction, Fa/Fr ratio and speed before substituting.
What shaft and housing fits suit 482?
For a rotating shaft under normal load, seat the cone on a k5 shaft fit; the cup is usually a loose-to-transition fit in the housing so it can creep slightly and distribute wear. Chamfer and shoulder diameters must clear the bearing rings so the 29.795 mm-wide cup seats square; the mounting setting (end play or preload) is set by the axial position of the cup relative to the cone.
Is 482 interchangeable with other brands?
Inch-series tapered roller bearings follow a long-standing industry boundary plan, so cones and cups of the same basic number are generally dimensionally interchangeable across manufacturers. However, internal geometry, cage design and load ratings differ by brand, so for paired or precision applications keep both halves of the set from one manufacturer — or re-verify ratings and setting when mixing.
What are the dimensions and catalogue data of 482?
The SKF 482/472 is a single-row tapered roller bearing with 69.85 mm bore, 120 mm outer diameter and 29.795 mm width (2.75 × 4.724 × 1.173 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 163 kN, C0 186 kN, fatigue load limit Pu 21.6 kN, reference speed 4,500 r/min, limiting speed 5,300 r/min, mass about 1350 g. It is an open, separable bearing with a pressed-steel cage.
How does the 482 inch-series designation work?
Inch-series tapered roller bearings use a Timken-style cone/cup convention: the number before the slash identifies the cone (inner ring with roller and cage assembly), the number after the slash identifies the cup (outer ring), and the 475-series code marks the dimensional series. The metric dimensions 69.85×120×29.795 mm are the converted equivalents of the original inch boundary dimensions.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.2 inch single-row TRB on 2026-09-28. Read our editorial & correction policy.