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 | NN3021 | |
| Bore diameter | d | 105 mm |
| Outside diameter | D | 160 mm |
| Width | B | 41 mm |
| Basic dynamic load rating | C | 226 kN |
| Basic static load rating | C0 | 310 kN |
| Fatigue load limit | Pu | 49 kN |
| Mass | ≈m | 2.673 kg |
| Precision class | SP — Tolerance class SP | |
| Internal clearance | C1 (Group 1) — Internal clearance smaller than C2 | |
| Cage | TVP — Plastic cage | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Product characteristics6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Cage | TVP | Plastic cage |
| Tolerance class | SP | Tolerance class SP |
| Bore type | K | Tapered, taper 1:12 |
| Change mark | D | Internal Variant D |
| 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 | 105 mm4.134 in |
| Outside diameter | D | 160 mm6.299 in |
| Width | B | 41 mm1.614 in |
| Basic dynamic load rating, radial | Cr | 226,000 N50,809.353 lbf |
| Basic static load rating, radial | C0r | 310,000 N69,694.245 lbf |
| Fatigue load limit, radial | Cur | 49,000 N11,016.187 lbf |
| Limiting speed for grease lubrication | nG Grease | 6,500 1/min |
| Limiting speed for oil lubrication | nG Oil | 7,600 1/min |
| Mass | ≈m | 2.673 kg5.893 lbs |
Mounting dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter shaft shoulder | da | 120 mm4.724 in |
| Diameter shaft shoulder tolerance | h12 | |
| Diameter of housing shoulder | Da | 149 mm5.866 in |
| Shoulder diameter outer ring clearance | H12 | |
| Injection pitch diameter min | Etk 1 nom | 143.5 mm5.65 in |
| Maximum recess radius | ra1 max | 2 mm0.079 in |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension | r1 min | 2 mm0.079 in |
| Raceway diameter outer ring | E | 146 mm5.748 in |
| Axial displacement | s | 2.6 mm0.102 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 120 °C248 °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 Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 374778 | |
| Brand | FAG | |
| Base Type | NN3021 | |
| X Life Marking | XL | |
| SAP material number | 0872459570000 | |
| Base product | 230509014D | |
| Bearing X designation | NN3021-D-K-TVP-SP-XL | |
| Mounting Manager ID | NN3021-D-K-TVP-SP-XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Super precision cylindrical roller bearings NN30..-D-K-TVP-SP, Non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage | |
| Short Description | Cylindrical roller bearing |
Technical Data17 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 105 mm | |
| Outside Diamater (D) | 160 mm | |
| Total Width (B) | 41 mm | |
| Basic Dynamic Load Rating, Radial (Cr) | 226,000 N | |
| Basic Static Load Rating, Radial (C0R) | 310,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 6,500 1/min | |
| Minimum Diameter Shaft Shoulder (Da) | 120 mm | |
| Limiting Speed (Ng Oil) | 7,600 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Maximum Diameter Of Housing Shoulder (Da) | 149 mm | |
| Minimum Chamfer Dimension (R1 Min) | 2 mm | |
| Axial Displacement (S) | 2.6 mm | |
| Injection Pitch Diameter Min (Etk 1 N) | 143.5 mm | |
| Maximum Recess Radius (Ra1 Max) | 2 mm | |
| Raceway Diameter Outer Ring (E) | 146 mm | |
| Fatigue Load Limit, Radial (Cur) | 49,000 N |
