61811 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 61811. 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.
61811 dimensions and recorded technical data
The recorded 61811 base designation measures 55×72×9 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF, FAG. 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. 7 recorded variants are listed. A dash means the value is missing, not zero.
Catalogue parameters for 61811
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 61811 — 44 recorded parameters
Deep groove ball bearing
Reference: SKF product catalogue; source snapshot 2026-09-02.
Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.
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 | 55.0 mm |
| Outside diameter | Not separately recorded | 72.0 mm |
| Width | Not separately recorded | 9.0 mm |
Performance
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | Not separately recorded | 8.84 kN |
| Basic static load rating | Not separately recorded | 6.8 kN |
| Reference speed | Not separately recorded | 19000.0 r/min |
| Limiting speed | Not separately recorded | 12000.0 r/min |
Properties
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Filling slots | Not separately recorded | Without |
| Number of rows | Not separately recorded | 1 |
| Locating feature, bearing outer ring | Not separately recorded | Without |
| Bore type | Not separately recorded | Cylindrical |
| Cage | Not separately recorded | Sheet metal |
| Matched arrangement | Not separately recorded | No |
| Radial internal clearance | Not separately recorded | CN |
| 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 | 0.26 kg CO 2 e |
Logistics
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Product net weight | Not separately recorded | 0.07 kg |
Engineering — Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore diameter | d | 55 mm |
| Deviation limits of mid-range bore diameter | t Δdmp | -0.012 to 0 mm |
| Outside diameter | D | 72 mm |
| Deviation limits of mid-range outside diameter | t ΔDmp | -0.011 to 0 mm |
| Width | B | 9 mm |
| Deviation limits of ring width | t ΔBs | -0.15 to 0 mm |
| Shoulder diameter | d 1 | ≈ 60.5 mm |
| Shoulder diameter | D 1 | ≈ 67 mm |
| Recess diameter | D 2 | ≈ 68.68 mm |
| Chamfer dimension | r 1,2 | min. 0.3 mm |
| ISO tolerance class for dimensions | Not separately recorded | P6 |
Engineering — Abutment dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 57 mm |
| Diameter of housing abutment | D a | max. 70 mm |
| Radius of shaft or housing fillet | r a | max. 0.3 mm |
Engineering — Calculation data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | C | 8.84 kN |
| Basic static load rating | C 0 | 6.8 kN |
| Fatigue load limit | P u | 0.36 kN |
| Reference speed | Not separately recorded | 19000 r/min |
| Limiting speed | Not separately recorded | 12000 r/min |
| Minimum load factor | k r | 0.02 |
| Calculation factor | f 0 | 13.6 |
Engineering — Tolerances of run-out
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Range of section height at inner ring of assembled bearing | t Kia | 10 µm |
| Range of section height at outer ring of assembled bearing | t Kea | 13 µm |
| ISO tolerance class for geometrical tolerances | Not separately recorded | P6 |
FAG 61811 — 46 recorded parameters
Deep groove ball bearing
Reference: Schaeffler medias — FAG; source snapshot 2026-09-02.
Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.
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.
Main Dimensions & Performance Data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore diameter | d | 55 mm |
| Bore diameter | d | 2.165 in |
| Outside diameter | D | 72 mm |
| Outside diameter | D | 2.835 in |
| Width | B | 9 mm |
| Width | B | 0.354 in |
| Basic dynamic load rating, radial | Cr | 9,600 N |
| Basic dynamic load rating, radial | Cr | 2,158.273 lbf |
| Basic static load rating, radial | C0r | 8,500 N |
| Basic static load rating, radial | C0r | 1,910.971 lbf |
| Fatigue load limit, radial | Cur | 520 N |
| Fatigue load limit, radial | Cur | 116.906 lbf |
| Limiting speed | nG | 13,500 1/min |
| Reference speed | nϑr | 6,600 1/min |
| Mass | ≈m | 0.084 kg |
| Mass | ≈m | 0.185 lbs |
Mounting dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 57 mm |
| Minimum diameter shaft shoulder | da min | 2.244 in |
| Maximum diameter of housing shoulder | Da max | 70 mm |
| Maximum diameter of housing shoulder | Da max | 2.756 in |
| Maximum fillet radius | ra max | 0.3 mm |
| Maximum fillet radius | ra max | 0.012 in |
Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Minimum chamfer dimension | rmin | 0.3 mm |
| Minimum chamfer dimension | rmin | 0.012 in |
| Shoulder diameter outer ring | D1 | 66.55 mm |
| Shoulder diameter outer ring | D1 | 2.62 in |
| Shoulder diameter inner ring | d1 | 60.6 mm |
| Shoulder diameter inner ring | d1 | 2.386 in |
Temperature range
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C |
| Operating temperature min. | Tmin | -22 °F |
| Operating temperature max. | Tmax | 120 °C |
| Operating temperature max. | Tmax | 248 °F |
Calculation factors
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Calculation factor | f0 | 16.3 |
Product characteristics
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Type of Seal | Without | Not sealed |
| Cage | JN | Steel sheet metal |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Dimensional / heat stabilization | SN | Rings dimensional stabilized up to 120° |
| Lubricant | Without | Bearing not greased |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
| Bore type | Z | Cylindrical |
Capabilities & suitability
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Radial load capacity | Not separately recorded | Yes |
| Axial load capacity in one direction | Not separately recorded | Yes |
| Axial load capacity in both directions | Not separately recorded | Yes |
| Suitable for grease lubrication | Not separately recorded | Yes |
| Suitable for oil lubrication | Not separately recorded | Yes |
| Unsealed design | Not separately recorded | Yes |
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) |
|---|---|---|---|---|---|---|
| SKF61811Deep groove ball bearing |
| 8.84 kN | 6.8 kN | 19000 rpm | 12000 rpm | 0.07 kg70 g |
| FAG61811Deep groove ball bearing |
| 9.6 kN | 8.5 kN | 6600 rpm | 13500 rpm | 0.084 kg84 g |
| SKF61811-2RS1Deep groove ball bearing with seals or shields |
| 8.84 kN | 6.8 kN | — | 9500 rpm | 0.0758 kg75.8 g |
| SKF61811-2RZDeep groove ball bearing with seals or shields |
| 8.84 kN | 6.8 kN | 19000 rpm | 9500 rpm | 0.08 kg80 g |
| FAG61811-2RSRDeep groove ball bearing |
| 9.6 kN | 8.5 kN | — | 4400 rpm | 0.083 kg83 g |
| FAG61811-2RZDeep groove ball bearing |
| 9.6 kN | 8.5 kN | 6600 rpm | 11500 rpm | 0.083 kg83 g |
| FAG61811-C3Deep groove ball bearing |
| 9.6 kN | 8.5 kN | 6600 rpm | 13500 rpm | 0.084 kg84 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 61811 | Without | P6 | CN | Sheet metal | Bearing steel | None |
| FAG 61811 | Without — Not sealed | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | JN — Steel sheet metal | Not recorded | Without — Bearing not greased |
| SKF 61811-2RS1 | Seal on both sides | P6 | CN | Sheet metal | Bearing steel | Grease |
| SKF 61811-2RZ | Seal on both sides | P6 | CN | Sheet metal | Bearing steel | Grease |
| FAG 61811-2RSR | 2RSR — Contact seal on both sides | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | JN — Steel sheet metal | Not recorded | GA13 — Ball bearing and insert bearing grease |
| FAG 61811-2RZ | 2RZ — Non-contact seal on both sides | PN — Normal (ISO 492:2023) | CN (Group N) — Normal internal clearance | JN — Steel sheet metal | Not recorded | GA13 — Ball bearing and insert bearing grease |
| FAG 61811-C3 | Without — Not sealed | PN — Normal (ISO 492:2023) | C3 (Group 3) — Internal clearance larger than CN | JN — Steel sheet metal | 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.
61811
Deep groove ball bearing
View full technical record →FAG61811
Deep groove ball bearing
View full technical record →FAG618/1120-M
Deep groove ball bearing
View full technical record →SKF618/1120 MA
Deep groove ball bearing
View full technical record →FAG618/1120-MA
Deep groove ball bearing
View full technical record →FAG618/1120-MA-C3
Deep groove ball bearing
View full technical record →SKF61811-2RS1
Deep groove ball bearing with seals or shields
View full technical record →FAG61811-2RSR
Deep groove ball bearing
View full technical record →SKF61811-2RZ
Deep groove ball bearing with seals or shields
View full technical record →FAG61811-2RZ
Deep groove ball bearing
View full technical record →FAG618/1180-MA
Deep groove ball bearing
View full technical record →FAG618/1180-MA-C3
Deep groove 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.