1218 K bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 1218 K. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.
On this page5 sections ⌄
Find by measured dimensions
Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.
1218 K dimensions and recorded technical data
The recorded 1218 K base designation measures 90×160×30 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF, NSK. It does not assign the same dimensions or operating ratings to every suffix.
The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 5 recorded variants are listed. A dash means the value is missing, not zero.
Catalogue parameters for 1218 K
Choose the complete brand and marking before reading a value. These source-labelled records add dimensions, construction and engineering properties where they were recorded; a shared model number does not establish interchangeability.
Units, ranges and minimum/maximum qualifiers are retained. The data is a dated catalogue reference, not a certified drawing, a complete current specification or an operating approval.
SKF 1218 K — 39 recorded parameters
Self-aligning ball bearing with tapered bore
Reference: SKF product catalogue; source snapshot 2026-09-02.
Keep total assembly width distinct from inner- and outer-ring widths. The same nominal bore does not establish a matching cup/cone set.
Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.
Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore diameter | Not separately recorded | 90.0 mm |
| Outside diameter | Not separately recorded | 160.0 mm |
| Width | Not separately recorded | 30.0 mm |
Performance
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | Not separately recorded | 57.2 kN |
| Basic static load rating | Not separately recorded | 23.6 kN |
| Reference speed | Not separately recorded | 8500.0 r/min |
| Limiting speed | Not separately recorded | 5300.0 r/min |
Properties
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Locating feature, bearing outer ring | Not separately recorded | Without |
| Number of rows | Not separately recorded | 2 |
| Bore type | Not separately recorded | Tapered 1:12 |
| Cage | Not separately recorded | Sheet metal |
| Radial internal clearance | Not separately recorded | CN |
| Tolerance class | Not separately recorded | Normal |
| Material, bearing | Not separately recorded | Bearing steel |
| Coating | Not separately recorded | Without |
| Sealing | Not separately recorded | Without |
| Relubrication feature | Not separately recorded | Without |
| Indicative carbon footprint for new product | Not separately recorded | 9.2 kg CO 2 e |
Logistics
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Product net weight | Not separately recorded | 2.48 kg |
Engineering — Engineering specifications
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore type | Not separately recorded | Tapered 1:12 |
Engineering — Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore diameter | d | 90 mm |
| Outside diameter | D | 160 mm |
| Width | B | 30 mm |
| Shoulder diameter inner ring | d 1 | ≈ 112.5 mm |
| Shoulder diameter outer ring | D 1 | ≈ 138.7 mm |
| Chamfer dimension | r 1,2 | min. 2 mm |
Engineering — Abutment dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Abutment diameter housing | D a | max. 149 mm |
| Fillet radius | r a | max. 2 mm |
Engineering — Calculation data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | C | 57.2 kN |
| Basic static load rating | C 0 | 23.6 kN |
| Fatigue load limit | P u | 1.08 kN |
| Reference speed | Not separately recorded | 8500 r/min |
| Limiting speed | Not separately recorded | 5300 r/min |
| Permissible angular misalignment | α | 2.5 ° |
| Calculation factor | k r | 0.04 |
| Limiting value | e | 0.17 |
| Calculation factor | Y 0 | 4 |
| Calculation factor | Y 1 | 3.7 |
| Calculation factor | Y 2 | 5.7 |
No recorded variant matches these filters. Clear a filter to see other records; no substitute has been inferred.
| Brand / full designation | Named dimensions (mm / in) | Dynamic C (kN) | Static C0 (kN) | Reference speed (rpm) | Limiting speed (rpm) | Mass (kg / g) |
|---|---|---|---|---|---|---|
| SKF1218 KSelf-aligning ball bearing with tapered bore |
| 57.2 kN | 23.6 kN | 8500 rpm | 5300 rpm | 2.48 kg2480 g |
| NSK1218KSelf-aligning ball bearing |
| 63 kN | 23.5 kN | — | — | — |
| SKF1218 K/C3Self-aligning ball bearing with tapered bore |
| 57.2 kN | 23.6 kN | 8500 rpm | 5300 rpm | 2.48 kg2480 g |
| FAG1218-K-TVHSelf-aligning ball bearing |
| 57 kN | 23.5 kN | 4850 rpm | 4550 rpm | 2.48 kg2480 g |
| FAG1218-K-TVH-C3Self-aligning ball bearing |
| 57 kN | 23.5 kN | 4850 rpm | 4550 rpm | 2.48 kg2480 g |
Compare recorded seals, clearance, precision and materials
Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.
| Brand / designation | Closure | Original precision | Clearance | Cage | Material | Lubricant |
|---|---|---|---|---|---|---|
| SKF 1218 K | Without | Not recorded | CN | Sheet metal | Bearing steel | None |
| NSK 1218K | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
| SKF 1218 K/C3 | Without | Not recorded | C3 | Sheet metal | Bearing steel | None |
| FAG 1218-K-TVH | Without — Not sealed | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | TVH — Solid cage made of glass-fiber reinforced polyamide PA66 | Not recorded | Without — Bearing not greased |
| FAG 1218-K-TVH-C3 | Without — Not sealed | PN — Normal (ISO 492:2023) | C3 (Group 3) — Internal clearance larger than CN | TVH — Solid cage made of glass-fiber reinforced polyamide PA66 | Not recorded | Without — Bearing not greased |
How to compare these values
- Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
- Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
- C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
- Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
- A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.
Related prefix matches — other model numbers may appear
These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.
1218 K
Self-aligning ball bearing with tapered bore
View full technical record →NSK1218K
Self-aligning ball bearing
View full technical record →SKF1218 K/C3
Self-aligning ball bearing with tapered bore
View full technical record →FAG1218-K-TVH
Self-aligning ball bearing
View full technical record →FAG1218-K-TVH-C3
Self-aligning ball bearing
View full technical record →Check the drawing before substituting
Nominal dimensions are not shaft-fit tolerances. Different variants can add grooves, flanges, wider rings or assembly components. When the table has different dimensions, the complete designation—not the shared prefix—controls.
Reference basis & data limits
Manufacturer terminology is retained in the product records. Technical reference basis: JTEKT Basic Bearing Knowledge (boundary dimensions, tolerance classes and lubrication); NSK Bearing ABCs (lubrication, designations and clearance); NTN technical FAQs (closure codes and component interchange); SKF rolling-bearing selection and maintenance references.
Selection workflows and catalogue grouping are BearingScope editorial aids. Verify the current drawing and application requirements before using a candidate. Missing database information is not converted into an assumed match.