71805 CD/P4 bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with 71805 CD/P4. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.
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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.
71805 CD/P4 dimensions and recorded technical data
The recorded 71805 CD/P4 base designation measures 25×37×7 mm (inside diameter d × outside diameter D × width B). This answer uses unsuffixed records from SKF. 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. 1 recorded variants are listed. A dash means the value is missing, not zero.
Catalogue parameters for 71805 CD/P4
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 71805 CD/P4 — 62 recorded parameters
Super-precision, high-capacity, single row angular contact 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 | 25.0 mm |
| Outside diameter | Not separately recorded | 37.0 mm |
| Width | Not separately recorded | 7.0 mm |
| Contact angle | Not separately recorded | 15.0 ° |
Performance
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | Not separately recorded | 4.16 kN |
| Basic static load rating | Not separately recorded | 3.2 kN |
| Attainable speed for grease lubrication | Not separately recorded | 38000.0 r/min |
| Attainable speed for oil-air lubrication | Not separately recorded | 56000.0 r/min |
Properties
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Contact type | Not separately recorded | Normal contact (two-point contact) |
| Number of rows | Not separately recorded | 1 |
| Ring type | Not separately recorded | One-piece inner and outer rings |
| Design | Not separately recorded | High-capacity D |
| Universal matching bearing | Not separately recorded | No |
| Matched arrangement | Not separately recorded | No |
| Matched condition (axial clearance/ preload) | Not separately recorded | Not applicable |
| Tolerance class | Not separately recorded | P4 |
| Material, bearing | Not separately recorded | Bearing steel |
| Coating | Not separately recorded | Without |
| Sealing | Not separately recorded | Without |
| Indicative carbon footprint for new product | Not separately recorded | 0.08 kg CO 2 e |
Logistics
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Product net weight | Not separately recorded | 0.021 kg |
Engineering — Engineering specifications
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Universal matching bearing(s) | Not separately recorded | No |
Engineering — Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Bore diameter | d | 25 mm |
| Outside diameter | D | 37 mm |
| Width | B | 7 mm |
| Shoulder diameter of inner ring (large side face) | d 1 | 29.1 mm |
| Shoulder diameter of inner ring (small side face) | d 2 | 29.1 mm |
| Shoulder diameter of outer ring (large side face) | D 1 | 33.1 mm |
| Chamfer dimension | r 1,2 | min. 0.3 mm |
| Chamfer dimension | r 3,4 | min. 0.15 mm |
| Distance from side face to pressure point | a | 7.7 mm |
Engineering — Abutment dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 27 mm |
| Diameter of shaft abutment | d b | min. 27 mm |
| Diameter of housing abutment | D a | max. 35 mm |
| Diameter of housing abutment | D b | max. 36.2 mm |
| Radius of fillet | r a | max. 0.3 mm |
| Radius of fillet | r b | max. 0.15 mm |
| Position of oil nozzle | d n | 29.5 mm |
Engineering — Calculation data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | C | 4.16 kN |
| Basic static load rating | C 0 | 3.2 kN |
| Fatigue load limit | P u | 0.137 kN |
| Attainable speed for grease lubrication | Not separately recorded | 38000 r/min |
| Attainable speed for oil-air lubrication | Not separately recorded | 56000 r/min |
| Contact angle | α | 15 ° |
| Ball diameter | D w | 3.175 mm |
| Number of rows | i | 1 |
| Number of balls (per bearing) | z | 20 |
| Reference grease quantity (per bearing) | G ref | 0.21 cm³ |
Engineering — Calculation data — Preload and stiffness (back-to-back, face-to-face)
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Preload, class A | G A | 22 N |
| Axial stiffnes for preload A (sets of two brgs back to back or face to face) | Not separately recorded | 26 N/µm |
| Preload, class B | G B | 66 N |
| Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face) | Not separately recorded | 44 N/µm |
| Preload, class C | G C | 132 N |
| Axial stiffness for preload C (sets of two brgs back-to-back or face-to-face) | Not separately recorded | 64 N/µm |
Engineering — Calculation data — Correction factors for preload calculation
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Correction factor dependent on bearing series and size | f | 1.1 |
| Correction factor dependent on contact angle | f 1 | 1 |
| Correction factor, preload class A | f 2A | 1 |
| Correction factor, preload class B | f 2B | 1.1 |
| Correction factor, preload class C | f 2C | 1.2 |
| Correction factor for hybrid bearings | f HC | 1 |
Engineering — Calculation data — Factors for equivalent bearing load calculation
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Calculation factor for equivalent loads | f 0 | 16.4 |
| Additional factors for equivalent loads | Not separately recorded | Refer to Notes 1 and 2 below |
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) |
|---|---|---|---|---|---|---|
| SKF71805 CD/P4Super-precision, high-capacity, single row angular contact ball bearing |
| 4.16 kN | 3.2 kN | — | — | 0.021 kg21 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 71805 CD/P4 | Without | Not recorded | Not recorded | Not recorded | Bearing steel | None |
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.
71805 CD/P4
Super-precision, high-capacity, single row angular contact ball bearing
View full technical record →SKF71805 CD/P4DBA
Matched set of two super-precision, high-capacity, D design, single row angular contact ball bearings
View full technical record →SKF71805 CD/P4DBB
Matched set of two super-precision, high-capacity, D design, single row angular contact ball bearings
View full technical record →SKF71805 CD/P4DGA
Matched set of two super-precision, high-capacity, D design, single row angular contact ball bearings
View full technical record →SKF71805 CD/P4DGB
Matched set of two super-precision, high-capacity, D design, single row angular contact ball bearings
View full technical record →SKF71805 CD/P4TFTM
Matched set of three super-precision, high-capacity, D design, single row angular contact ball bearings
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.