Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 2318 | |
| Bore diameter | d | 90 mm |
| Outside diameter | D | 190 mm |
| Width | B | 64 mm |
| Basic dynamic load rating | C | 156 kN |
| Basic static load rating | C0 | 58 kN |
| Fatigue load limit | Pu | 3.1 kN |
| Reference speed | nref | 5000 r/min |
| Limiting speed | nG | 5100 r/min |
| Mass | ≈m | 8.35 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Internal clearance | C3 (Group 3) — Internal clearance larger than CN | |
| Sealing | Without — Not sealed | |
| Cage | M — Solid brass cage, ball guided | |
| Lubricant | Without — Bearing not greased | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Precision classification2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial ball bearing tolerance equivalent | ABEC 1Derived from ISO Normal; not a direct ABEC marking | |
| Mapping basis | ISO 492 / ANSI/ABMA 20The original manufacturer tolerance remains the controlling value. |
Product characteristics6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore type | K | Tapered, taper 1:12 |
| Type of Seal | Without | Not sealed |
| Cage | M | Solid brass cage, ball guided |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Radial internal clearance | C3 (Group 3) | Internal clearance larger than CN |
| Lubricant | Without | Bearing not greased |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 90 mm3.543 in |
| Outside diameter | D | 190 mm7.48 in |
| Width | B | 64 mm2.52 in |
| Basic dynamic load rating, radial | Cr | 156,000 N35,071.942 lbf |
| Basic static load rating, radial | C0r | 58,000 N13,039.568 lbf |
| Fatigue load limit, radial | Cur | 3,100 N696.942 lbf |
| Limiting speed | nG | 5,100 1/min |
| Reference speed | nϑr | 5,000 1/min |
| Mass | ≈m | 8.35 kg18.409 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 104 mm4.094 in |
| Maximum diameter shaft shoulder | da max | 112 mm4.409 in |
| Maximum diameter of housing shoulder | Da max | 176 mm6.929 in |
| Minimum cavity diameter of the sleeve | db min | 100 mm3.937 in |
| Minimum cavity width of the sleeve | Ba min | 7 mm0.276 in |
| Maximum fillet radius | ra max | 2.5 mm0.098 in |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 3 mm0.118 in |
| Shoulder diameter outer ring | D1 | 159.81 mm6.292 in |
| Shoulder diameter inner ring | d1 | 115.7 mm4.555 in |
| Overhang rolling element | C1 | 0.1 mm0.004 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 150 °C302 °F |
Calculation factors4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Y | e | 0.39 |
| Dynamic axial load factor | Y1 | 1.64 |
| Dynamic axial load factor | Y2 | 2.53 |
| Static axial load factor | Y0 | 1.71 |
Capabilities & suitability8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| 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 |
Manufacturer Identity10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 366198 | |
| Brand | FAG | |
| Base Type | 2318 | |
| Old Designation | ["2318K.M.C3"] | |
| X Life Marking | n.r. | |
| SAP material number | 0384739170030 | |
| Base product | 2305080601 | |
| Bearing X designation | 2318-K-M-C3 | |
| Mounting Manager ID | 2318-K-M-C3 | |
| Grease application ID | 2318-K-M-C3 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Self-aligning ball bearing 23..-K-M, tapered bore taper 1:12, solid brass cage | |
| Short Description | Self-aligning ball bearing |
Additional information1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Adapter sleeve | H2318 |
Technical Data24 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 90 mm | |
| Outside Diameter (D) | 190 mm | |
| Width (B) | 64 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 156,000 N | |
| Basic Static Load Rating, Radial (C0R) | 58,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 5,100 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Reference Speed (Nϑr) | 5,000 1/min | |
| Fatigue Load Limit, Radial (Cur) | 3,100 N | |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.39 | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 112 mm | |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 100 mm | |
| Minimum Diameter Shaft Shoulder (Da Min) | 104 mm | |
| Shoulder Diameter Inner Ring (D1) | 115.7 mm | |
| Dynamic Axial Load Factor (Y1) | 1.64 | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 176 mm | |
| Minimum Chamfer Dimension (Rmin) | 3 mm | |
| Overhang Rolling Element (C1) | 0.1 mm | |
| Maximum Fillet Radius (Ra Max) | 2.5 mm | |
| Shoulder Diameter Outer Ring (D1) | 159.81 mm | |
| Dynamic Axial Load Factor (Y2) | 2.53 | |
| Minimum Cavity Width Of The Sleeve (Ba Min) | 7 mm | |
| Static Axial Load Factor (Y0) | 1.71 |