Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | NN3028 | |
| Bore diameter | d | 140 mm |
| Outside diameter | D | 210 mm |
| Width | B | 53 mm |
| Basic dynamic load rating | C | 300 kN |
| Basic static load rating | C0 | 520 kN |
| Fatigue load limit | Pu | 64 kN |
| Mass | ≈m | 6.137 kg |
| Precision class | SP — Tolerance class SP | |
| Internal clearance | C1 (Group 1) — Internal clearance smaller than C2 | |
| Cage | M — Brass Cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 150 °C |
Product characteristics6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Cage | M | Brass Cage |
| Tolerance class | SP | Tolerance class SP |
| Bore type | K | Tapered, taper 1:12 |
| Change mark | A | Internal Variant A |
| Radial internal clearance | C1 (Group 1) | Internal clearance smaller than C2 |
| Number of rows | 2 | Double-row design |
Main Dimensions & Performance Data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 140 mm5.512 in |
| Outside diameter | D | 210 mm8.268 in |
| Width | B | 53 mm2.087 in |
| Basic dynamic load rating, radial | Cr | 300,000 N67,446.043 lbf |
| Basic static load rating, radial | C0r | 520,000 N116,906.475 lbf |
| Fatigue load limit, radial | Cur | 64,000 N14,388.489 lbf |
| Limiting speed for grease lubrication | nG Grease | 3,900 1/min |
| Limiting speed for oil lubrication | nG Oil | 4,600 1/min |
| Mass | ≈m | 6.137 kg13.53 lbs |
Mounting dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter shaft shoulder | da | 160 mm6.299 in |
| Diameter shaft shoulder tolerance | h12 | |
| Diameter of housing shoulder | Da | 196 mm7.717 in |
| Shoulder diameter outer ring clearance | H12 | |
| Maximum recess radius | ra1 max | 2 mm0.079 in |
Dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | r1 min | 2 mm0.079 in |
| Raceway diameter outer ring | E | 192 mm7.559 in |
| Width of lubricating groove | ns | 9.5 mm0.374 in |
| Diameter lubrication hole | ds | 4.8 mm0.189 in |
| Axial displacement | s | 3.4 mm0.134 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 Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 374723 | |
| Brand | FAG | |
| Base Type | NN3028 | |
| Old Designation | ["NN3028ASK.M.SP","NN3028SK.M.SP"] | |
| X Life Marking | n.r. | |
| SAP material number | 0192313500000 | |
| Base product | 230509014D | |
| Bearing X designation | NN3028-AS-K-M-SP | |
| Mounting Manager ID | NN3028-AS-K-M-SP |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Super precision cylindrical roller bearings NN30..-AS-K-M-SP, non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage | |
| Short Description | Cylindrical roller bearing |
Technical Data18 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 140 mm | |
| Outside Diamater (D) | 210 mm | |
| Total Width (B) | 53 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 300,000 N | |
| Basic Static Load Rating, Radial (C0R) | 520,000 N | |
| Diameter Lubrication Hole (Ds) | 4.8 mm | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 3,900 1/min | |
| Minimum Diameter Shaft Shoulder (Da) | 160 mm | |
| Limiting Speed (Ng Oil) | 4,600 1/min | |
| Operating Temperature Max. (Tmax) | 150 °C | |
| Maximum Diameter Of Housing Shoulder (Da) | 196 mm | |
| Minimum Chamfer Dimension (R1 Min) | 2 mm | |
| Width Of Lubricating Groove (Ns) | 9.5 mm | |
| Axial Displacement (S) | 3.4 mm | |
| Maximum Recess Radius (Ra1 Max) | 2 mm | |
| Raceway Diameter Outer Ring (E) | 192 mm | |
| Fatigue Load Limit, Radial (Cur) | 64,000 N |
