Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | NU3188 | |
| Bore diameter | d | 440 mm |
| Outside diameter | D | 720 mm |
| Width | B | 226 mm |
| Basic dynamic load rating | C | 5100 kN |
| Basic static load rating | C0 | 9400 kN |
| Fatigue load limit | Pu | 850 kN |
| Reference speed | nref | 390 r/min |
| Limiting speed | nG | 1330 r/min |
| Mass | ≈m | 360.8 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Internal clearance | CN (Group N) — Normal internal clearance | |
| Cage | M1 — Two Piece Brass Cage Roller Guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design | Standard | |
| Cage | M1 | Two Piece Brass Cage Roller Guided |
| Radial internal clearance | CN (Group N) | Normal internal clearance |
| Tolerance class | PN | Normal (ISO 492:2023) |
| Number of rows | 1 | Single-row design |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 440 mm17.323 in |
| Outside diameter | D | 720 mm28.346 in |
| Width | B | 226 mm8.898 in |
| Basic dynamic load rating, radial | Cr | 5,100,000 N1,146,582.734 lbf |
| Basic static load rating, radial | C0r | 9,400,000 N2,113,309.353 lbf |
| Fatigue load limit, radial | Cur | 850,000 N191,097.122 lbf |
| Limiting speed | nG | 1,330 1/min |
| Reference speed | nϑr | 390 1/min |
| Mass | ≈m | 360.8 kg795.427 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 466 mm18.346 in |
| Maximum diameter of shaft shoulder | da max | 500 mm19.685 in |
| Minimum shaft shoulder | db min | 510 mm20.079 in |
| Maximum diameter of housing shoulder | Da max | 694 mm27.323 in |
| Maximum recess radius | ra max | 5 mm0.197 in |
| Maximum recess radius | ra1 max | 5 mm0.197 in |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 6 mm0.236 in |
| Minimum chamfer dimension | r1 min | 6 mm0.236 in |
| Axial displacement | s | 19 mm0.748 in |
| Raceway diameter outer ring | E | 665 mm26.181 in |
| Raceway diameter inner ring | F | 505 mm19.882 in |
| Minimum rib diameter outer ring | D1 min | 633 mm24.921 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 150 °C302 °F |
Capabilities & suitability4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 369159 | |
| Brand | FAG | |
| Base Type | NU3188 | |
| X Life Marking | n.r. | |
| SAP material number | 0192489460000 | |
| Base product | 2305090102 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Cylindrical roller bearing NU..-M1, with cage, single row, non-locating bearing, 2 ribs on outer ring, 0 ribs on inner ring (smooth), type NU, Running accuracy in P6 | |
| Short Description | Cylindrical roller bearing |
Technical Data22 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 440 mm | |
| Outside Diamater (D) | 720 mm | |
| Total Width (B) | 226 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 5,100,000 N | |
| Basic Static Load Rating, Radial (C0R) | 9,400,000 N | |
| Raceway Diameter Inner Ring (F) | 505 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 466 mm | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Limiting Speed (Limiting Spe) | 1,330 1/min | |
| Reference Speed (Nϑr) | 390 1/min | |
| Maximum Recess Radius (Ra Max) | 5 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 694 mm | |
| Minimum Chamfer Dimension (R1 Min) | 6 mm | |
| Axial Displacement (S) | 19 mm | |
| Minimum Rib Diameter Outer Ring (D1 Min) | 633 mm | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 500 mm | |
| Maximum Recess Radius (Ra1 Max) | 5 mm | |
| Minimum Chamfer Dimension (Rmin) | 6 mm | |
| Raceway Diameter Outer Ring (E) | 665 mm | |
| Minimum Shaft Shoulder (Db Min) | 510 mm | |
| Fatigue Load Limit, Radial (Cur) | 850,000 N |
