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| Parameter | SKF231680 × 170 × 58 mm | FAG2316-M80 × 170 × 58 mm | NSK231680 × 170 × 58 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | NSK |
| Designation | 2316 | 2316-M | 2316 |
| Product family | Self-aligning ball bearings | — | Self-aligning ball bearing |
| Detailed type | Self-aligning ball bearings | Self-aligning ball bearings | Self-aligning ball bearings |
| Series | — | 2316 | — |
| Bore diameterd | 80 mm | 80 mm | 80 mm |
| Outside diameterD | 170 mm | 170 mm | 170 mm |
| WidthB | 58 mm | 58 mm | 58 mm |
| Basic dynamic load ratingC | 135 kN | 139 kN | 143 kN |
| Basic static load ratingC0 | 49 kN | 48.5 kN | 45 kN |
| Fatigue load limitPu | 2.24 kN | 2.75 kN | — |
| Reference speednref | 7000 r/min | 5400 r/min | — |
| Limiting speednG | 5300 r/min | 5700 r/min | — |
| Mass≈m | 5.74 kg | 6.104 kg | 5.75 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — |
| Sealing | Without | Without — Not sealed | — |
| Cage | Sheet metal | M — Solid brass cage, ball guided | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | Without — Bearing not greased | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 150 °C | — |
| Boundary dimensions | |||
| Bearing widthB | — | — | 58 mm |
| Minimum bearing chamferr min. | — | — | 2.1 mm |
| Calculation factors | |||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | — | 0.37 | — |
| Dynamic axial load factorY1 | — | 1.7 | — |
| Dynamic axial load factorY2 | — | 2.63 | — |
| Static axial load factorY0 | — | 1.78 | 1.7 |
| Capabilities & suitability | |||
| Radial load capacity | — | Yes | — |
| Axial load capacity in one direction | — | Yes | — |
| Axial load capacity in both directions | — | Yes | — |
| Suitable for grease lubrication | — | Yes | — |
| Suitable for oil lubrication | — | Yes | — |
| Unsealed design | — | Yes | — |
| Staticangularerrorandmisalignment | — | Yes | — |
| Dynamicangularerrorandmisalignment | — | Yes | — |
| Construction | |||
| Bore construction | — | — | Cylindrical bore |
| Dimensions | |||
| Minimum chamfer dimensionrmin | — | 2.1 mm | — |
| Minimum chamfer dimensionrmin | — | 0.083 in | — |
| Shoulder diameter outer ringD1 | — | 144.14 mm | — |
| Shoulder diameter outer ringD1 | — | 5.675 in | — |
| Shoulder diameter inner ringd1 | — | 107.6 mm | — |
| Shoulder diameter inner ringd1 | — | 4.236 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 92 mm | — | — |
| Abutment diameter housingD a | max. 158 mm | — | — |
| Fillet radiusr a | max. 2 mm | — | — |
| Engineering — Calculation data | |||
| Permissible angular misalignmentα | 3 ° | — | — |
| Calculation factork r | 0.05 | — | — |
| Limiting valuee | 0.37 | — | — |
| Calculation factorY 0 | 1.8 | — | — |
| Calculation factorY 1 | 1.7 | — | — |
| Calculation factorY 2 | 2.6 | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter inner ringd 1 | ≈ 104.4 mm | — | — |
| Shoulder diameter outer ringD 1 | ≈ 145.1 mm | — | — |
| Chamfer dimensionr 1,2 | min. 2.1 mm | — | — |
| Engineering — Engineering specifications | |||
| Bore type | Cylindrical | — | — |
| Equivalent-load factors | |||
| Dynamic load ratio thresholde | — | — | 0.39 |
| Dynamic axial factor above thresholdY2 | — | — | 2.5 |
| Dynamic axial factor at or below thresholdY3 | — | — | 1.6 |
| Load ratings | |||
| Basic dynamic radial load ratingCr | — | — | 143000 N |
| Basic static radial load ratingC0r | — | — | 45000 N |
| Logistics | |||
| Product net weight | 5.74 kg | — | — |
| eClass code | 23-05-08-06 | — | — |
| UNSPSC code | 31171532 | — | — |
| Lubrication-qualified speed | |||
| Limiting speed with grease | — | — | 3200 r/min |
| Limiting speed with oil | — | — | 4000 r/min |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 139,000 N | — |
| Basic dynamic load rating, radialCr | — | 31,250 lbf | — |
| Basic static load rating, radialC0r | — | 48,500 N | — |
| Basic static load rating, radialC0r | — | 10,903.777 lbf | — |
| Fatigue load limit, radialCur | — | 2,750 N | — |
| Fatigue load limit, radialCur | — | 618.255 lbf | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 366253 | — |
| Base Type | — | 2316 | — |
| Old Designation | — | ["2316M"] | — |
| Gpsd Group | — | S03 | — |
| Product Line Id | — | 14 | — |
| X Life Marking | — | n.r. | — |
| SAP material number | — | 0190335080000 | — |
| Base product | — | 2305080601 | — |
| Bearing X designation | — | 2316-M | — |
| Mounting Manager ID | — | 2316-M | — |
| Grease application ID | — | 2316-M | — |
| Mounting dimensions | |||
| Minimum shaft shoulder diameterda min. | — | — | 91 mm |
| Maximum housing shoulder diameterDa max. | — | — | 159 mm |
| Maximum adjacent fillet radiusra max. | — | — | 2 mm |
| Ball protrusion beyond bearing faceb1 | — | — | 0.5 mm |
| Minimum diameter shaft shoulderda min | — | 92 mm | — |
| Minimum diameter shaft shoulderda min | — | 3.622 in | — |
| Maximum diameter of housing shoulderDa max | — | 158 mm | — |
| Maximum diameter of housing shoulderDa max | — | 6.22 in | — |
| Maximum fillet radiusra max | — | 2.1 mm | — |
| Maximum fillet radiusra max | — | 0.083 in | — |
| Product characteristics | |||
| Bore typeZ | — | Cylindrical | — |
| Type of SealWithout | — | Not sealed | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — |
| Product identity | |||
| Official product category | Self-aligning ball bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/self-aligning-ball-bearings | — | — |
| Structure group ID | BJ1_001 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Self-aligning ball bearing 23..-M, solid brass cage | — |
| Short Description | — | Self-aligning ball bearing | — |
| Properties | |||
| Retaining feature, inner ring | None | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Number of rows | 2 | — | — |
| Radial internal clearance | CN | — | — |
| Tolerance class | Normal | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 21.3 kg CO 2 e | — | — |
| Reference mass | |||
| Approximate catalogue mass | — | — | 5.75 kg |
| Technical Data | |||
| Bore Diameter (D) | — | 80 mm | — |
| Outside Diameter (D) | — | 170 mm | — |
| Width (B) | — | 58 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 139,000 N | — |
| Basic Static Load Rating, Radial (C0R) | — | 48,500 N | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speed (Ng) | — | 5,700 1/min | — |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Reference Speed (Nϑr) | — | 5,400 1/min | — |
| Fatigue Load Limit, Radial (Cur) | — | 2,750 N | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | — | 0.37 | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 92 mm | — |
| Shoulder Diameter Inner Ring (D1) | — | 107.6 mm | — |
| Dynamic Axial Load Factor (Y1) | — | 1.7 | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 158 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 2.1 mm | — |
| Maximum Fillet Radius (Ra Max) | — | 2.1 mm | — |
| Shoulder Diameter Outer Ring (D1) | — | 144.14 mm | — |
| Dynamic Axial Load Factor (Y2) | — | 2.63 | — |
| Static Axial Load Factor (Y0) | — | 1.78 | — |
| Temperature range | |||
| Operating temperature min.Tmin | — | -30 °C | — |
| Operating temperature min.Tmin | — | -22 °F | — |
| Operating temperature max.Tmax | — | 150 °C | — |
| Operating temperature max.Tmax | — | 302 °F | — |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.