Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | KT921 | |
| Bore diameter | d | 234.95 mm |
| Outside diameter | D | 546.1 mm |
| Width | B | 127 mm |
| Limiting speed | nG | 400 r/min |
| Mass | ≈m | 156.1 kg |
| Cage | MPA — Solid brass cage, outer ring guided | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Product characteristics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Heat treatment | Case hardened | |
| Cage | MPA | Solid brass cage, outer ring guided |
| Design | 2 | With step in the bore |
Main Dimensions & Performance Data8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 234.95 mm9.25 in |
| Outside diameter | D | 546.1 mm21.5 in |
| Height | T | 127 mm5 in |
| Basic dynamic load rating, axial, according to ABEC/RBEC 8-1170 | Ca* | 8,000,000 N1,798,561.151 lbf |
| Basic static load rating, axial | C0a | 21,900,000 N4,923,561.151 lbf |
| Fatigue load limit, axial | Cua | 1,620,000 N364,208.633 lbf |
| Limiting speed | nG | 400 1/min |
| Mass | ≈m | 156.1 kg344.141 lbs |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Minimum chamfer dimension at outside diameter | rs min | 16 mm0.63 in |
| Diameter of step | d1 | 266.7 mm10.5 in |
| Width of step | b | 15.875 mm0.625 in |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 120 °C248 °F |
Capabilities & suitability5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Axial load capacity in both directions | Yes | |
| Suitable for grease lubrication | Yes | |
| Suitable for oil lubrication | Yes | |
| Unsealed design | Yes | |
| Largebearing | Yes |
Manufacturer Identity6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 396787 | |
| Brand | FAG | |
| Base Type | KT921 | |
| X Life Marking | n.r. | |
| SAP material number | 0854949840000 | |
| Base product | 2305110401 |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Axial tapered roller bearing KT-SERIES, single direction | |
| Short Description | Axial tapered roller bearing |
Technical Data12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 234.95 mm | |
| Outside Diameter (D) | 546.1 mm | |
| Width (B) | 127 mm | |
| Basic Dynamic Load Rating, Axial, According To Abec/Rbec 8 1170 (Ca*) | 8,000,000 N | |
| Basic Static Load Rating, Axial (C0A) | 21,900,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed (Ng) | 400 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Minimum Chamfer Dimension At Outside Diameter (Rs Min) | 16 mm | |
| Width Of Step (B) | 15.875 mm | |
| Diameter Of Step (D1) | 266.7 mm | |
| Fatigue Load Limit, Axial (Cua) | 1,620,000 N |