Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | QJ221 | |
| Bore diameter | d | 105 mm |
| Outside diameter | D | 190 mm |
| Width | B | 36 mm |
| Basic dynamic load rating | C | 233 kN |
| Basic static load rating | C0 | 255 kN |
| Fatigue load limit | Pu | 12 kN |
| Reference speed | nref | 3450 r/min |
| Limiting speed | nG | 6200 r/min |
| Mass | ≈m | 4.635 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Cage | MPA — Solid brass cage, outer ring guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design, bearing outer ring | N2 | Two retaining grooves in the outer ring on one side |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Cage | MPA | Solid brass cage, outer ring guided |
| Dimensional / heat stabilization | S0 | Rings dimensional stabilized up to 150° |
| Axial internal clearance | C3 | Group 3 (C3), bigger than CN |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 105 mm4.134 in |
| Outside diameter | D | 190 mm7.48 in |
| Width | B | 36 mm1.417 in |
| Basic dynamic load rating, radial | Cr | 233,000 N52,383.094 lbf |
| Basic static load rating, radial | C0r | 255,000 N57,329.137 lbf |
| Fatigue load limit, radial | Cur | 12,000 N2,697.842 lbf |
| Limiting speed | nG | 6,200 1/min |
| Reference speed | nϑr | 3,450 1/min |
| Mass | ≈m | 4.635 kg10.218 lbs |
Mounting dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 117 mm4.606 in |
| Maximum diameter of housing shoulder | Da max | 178 mm7.008 in |
| Maximum fillet radius | ra max | 2.1 mm0.083 in |
Dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 2.1 mm0.083 in |
| Shoulder diameter outer ring | D1 | 161.6 mm6.362 in |
| Shoulder diameter inner ring | d1 | 134.84 mm5.309 in |
| Distance between the apexes of the pressure cones | a | 103.3 mm4.067 in |
| Hight retaining slot | an | 10.1 mm0.398 in |
| Width retaining slot | bn | 8.5 mm0.335 in |
| Radius retaining slot | rn | 2 mm0.079 in |
| Angle retaining slot | 45 ° | |
| Contact angle | α | 35 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 150 °C302 °F |
Capabilities & suitability6 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 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 366520 | |
| Brand | FAG | |
| Base Type | QJ221 | |
| Old Designation | ["QJ221N2MPA.C3"] | |
| SAP material number | 0192611600030 | |
| Base product | 230508AD41 | |
| Bearing X designation | QJ221-N2-MPA-C3 | |
| Mounting Manager ID | QJ221-N2-MPA-C3 | |
| Grease application ID | QJ221-N2-MPA-C3 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Four point contact bearing QJ2..-N2-MPA, holding grooves, solid brass cage | |
| Short Description | Four-point contact bearing |
Technical Data22 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 105 mm | |
| Outside Diameter (D) | 190 mm | |
| Width (B) | 36 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 233,000 N | |
| Basic Static Load Rating, Radial (C0R) | 255,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 6,200 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Reference Speed (Nϑr) | 3,450 1/min | |
| Angle Retaining Slot (Angle Retain) | 45 ° | |
| Hight Retaining Slot (An) | 10.1 mm | |
| Radius Retaining Slot (Rn) | 2 mm | |
| Fatigue Load Limit, Radial (Cur) | 12,000 N | |
| Minimum Diameter Shaft Shoulder (Da Min) | 117 mm | |
| Shoulder Diameter Inner Ring (D1) | 134.84 mm | |
| Maximum Diameter Of Housing Shoulder (Da Max) | 178 mm | |
| Minimum Chamfer Dimension (Rmin) | 2.1 mm | |
| Maximum Fillet Radius (Ra Max) | 2.1 mm | |
| Shoulder Diameter Outer Ring (D1) | 161.6 mm | |
| Contact Angle (Α) | 35 ° | |
| Distance Between The Apexes Of The Pressure Cones (A) | 103.3 mm | |
| Width Retaining Slot (Bn) | 8.5 mm |