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 | NJ318 | |
| Bore diameter | d | 90 mm |
| Outside diameter | D | 190 mm |
| Width | B | 43 mm |
| Basic dynamic load rating | C | 390 kN |
| Basic static load rating | C0 | 375 kN |
| Fatigue load limit | Pu | 65 kN |
| Reference speed | nref | 3550 r/min |
| Limiting speed | nG | 6300 r/min |
| Mass | ≈m | 6.055 kg |
| Precision class | PN — Normal (ISO 492:2023) | |
| Internal clearance | C3 (Group 3) — Internal clearance larger than CN | |
| Cage | MPAX — One Piece Brass Cage Lip Guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Product characteristics5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Design | E | Increased Capacity Design |
| Cage | MPAX | One Piece Brass Cage Lip Guided |
| Radial internal clearance | C3 (Group 3) | Internal clearance larger than CN |
| 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 | 90 mm3.543 in |
| Outside diameter | D | 190 mm7.48 in |
| Width | B | 43 mm1.693 in |
| Basic dynamic load rating, radial | Cr | 390,000 N87,679.856 lbf |
| Basic static load rating, radial | C0r | 375,000 N84,307.554 lbf |
| Fatigue load limit, radial | Cur | 65,000 N14,613.309 lbf |
| Limiting speed | nG | 6,300 1/min |
| Reference speed | nϑr | 3,550 1/min |
| Mass | ≈m | 6.055 kg13.349 lbs |
Mounting dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum diameter shaft shoulder | da min | 104 mm4.094 in |
| Maximum diameter of shaft shoulder | da max | 111 mm4.37 in |
| Maximum diameter of housing shoulder | Da max | 176 mm6.929 in |
| Minimum shaft shoulder | dc min | 127 mm5 in |
| Maximum recess radius | ra max | 2.5 mm0.098 in |
Dimensions7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | rmin | 3 mm0.118 in |
| Minimum chamfer dimension | r1 min | 3 mm0.118 in |
| Axial displacement | s | 1.5 mm0.059 in |
| Raceway diameter outer ring | E | 169.5 mm6.673 in |
| Raceway diameter inner ring | F | 113.5 mm4.469 in |
| Minimum rib diameter outer ring | D1 min | 161.62 mm6.363 in |
| Maximum rib diameter inner ring | d1 | 124 mm4.882 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 150 °C302 °F |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes |
Manufacturer Identity6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 372982 | |
| Brand | FAG | |
| Base Type | NJ318 | |
| X Life Marking | XL | |
| SAP material number | 0862201950030 | |
| Base product | 2305090111 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Cylindrical roller bearing NJ..-E-XL-MPAX, with cage, single row, semi-locating bearing, 2 ribs on outer ring, 1 rib on inner ring, type NJ | |
| Short Description | Cylindrical roller bearing |
Additional information1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| L-washer | HJ318-E |
Technical Data22 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 90 mm | |
| Outside Diamater (D) | 190 mm | |
| Total Width (B) | 43 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 390,000 N | |
| Basic Static Load Rating, Radial (C0R) | 375,000 N | |
| Raceway Diameter Inner Ring (F) | 113.5 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Minimum Diameter Shaft Shoulder (Da) | 104 mm | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Limiting Speed (Limiting Spe) | 6,300 1/min | |
| Minimum Shaft Shoulder (Dc Min) | 127 mm | |
| Reference Speed (Nϑr) | 3,550 1/min | |
| Maximum Recess Radius (Ra Max) | 2.5 mm | |
| Maximum Diameter Of Housing Shoulder (Da) | 176 mm | |
| Maximum Rib Diameter Inner Ring (D1) | 124 mm | |
| Minimum Chamfer Dimension (R1 Min) | 3 mm | |
| Axial Displacement (S) | 1.5 mm | |
| Minimum Rib Diameter Outer Ring (D1 Min) | 161.62 mm | |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 111 mm | |
| Minimum Chamfer Dimension (Rmin) | 3 mm | |
| Raceway Diameter Outer Ring (E) | 169.5 mm | |
| Fatigue Load Limit, Radial (Cur) | 65,000 N |
