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 | ZKLF50140 | |
| Bore diameter | d | 50 mm |
| Outside diameter | D | 140 mm |
| Width | B | 108 mm |
| Mass | ≈m | 9.2 kg |
| Precision class | Standard | |
| Sealing | 2RS — Contact lip seals on both sides | |
| Minimum operating temperature | Tmin | -30 °C |
| Maximum operating temperature | Tmax | 120 °C |
Product characteristics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Number of bearings | 2AP | Axial angular contact ball bearings, matched pair |
| Type of Seal | 2RS | Contact lip seals on both sides |
| Tolerance class | Standard |
Main Dimensions & Performance Data15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 50 mm1.969 in |
| Bore diameter upper tolerance | 0 mm0 in | |
| Bore diameter lower tolerance | -0.005 mm0 in | |
| Outside diameter | D | 140 mm5.512 in |
| Outside diameter upper tolerance | 0 mm0 in | |
| Outside diameter lower tolerance | -0.1 mm-0.004 in | |
| Width | B | 108 mm4.252 in |
| Width upper tolerance | 0 mm0 in | |
| Width lower tolerance | -0.5 mm-0.02 in | |
| Basic dynamic load rating, axial | Ca | 203,000 N45,638.489 lbf |
| Basic static load rating, axial | C0a | 500,000 N112,410.072 lbf |
| Fatigue load limit, axial | Cua | 30,500 N6,857.014 lbf |
| Limiting speed for grease lubrication | nG Grease | 2,900 1/min |
| Thermally safe operating speed | nϑ | 1,200 1/min |
| Mass | ≈m | 9.2 kg20.283 lbs |
Mounting dimensions7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Maximum diameter of housing | Da max | 98 mm3.858 in |
| Minimum diameter shaft | da min | 63 mm2.48 in |
| Position tolerance of bore in the housing | t1 | 0.2 mm0.008 in |
| Size of fixing screws | M10X120 | |
| Number of holes in adjacent construction | na | 12 |
| Pitch separation angle of holes in adjacent construction | ta | 30 ° |
| Connection thread for lubrication | M6 |
Dimensions10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Rib diameter inner ring | d1 | 80 mm3.15 in |
| Minimum chamfer dimension | rmin | 0.6 mm0.024 in |
| Minimum chamfer dimension | r1 min | 0.6 mm0.024 in |
| Pitch circle diameter fixing holes | J | 113 mm4.449 in |
| Fixing holes diameter | d2 | 11 mm0.433 in |
| Width of extraction slot | b | 3 mm0.118 in |
| Distance of extraction slot | I | 99 mm3.898 in |
| Pitch quantity of fixing holes | n | 12 |
| Pitch separation angle of fixing holes | t | 30 ° |
| Contact angle | a | 60 ° |
Temperature range2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Operating temperature min. | Tmin | -30 °C-22 °F |
| Operating temperature max. | Tmax | 120 °C248 °F |
Capabilities & suitability6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Radial load capacity | Yes | |
| Axial load capacity in one direction | Yes | |
| Axial load capacity in both directions | Yes | |
| Lifetimelubricationfreedomfrommaintenance | Yes | |
| Suitable for grease lubrication | Yes | |
| Sealedonbothsides | Yes |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Schaeffler Product Code | 799034 | |
| Brand | FAG | |
| Base Type | ZKLF50140 | |
| X Life Marking | XL | |
| SAP material number | 0801837270000 | |
| Base product | 2305100203 | |
| Bearing X designation | ZKLF50140-2RS-2AP-XL | |
| Mounting Manager ID | ZKLF50140-2RS-2AP-XL |
Product Identity2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Construction | Axial angular contact ball bearings ZKLF..-2RS-2AP-XL, matched pair, double direction, lip seals on both sides | |
| Short Description | Axial angular contact ball bearing |
Additional information5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Axial runout | 2.5 µm0.0001 in | |
| Recommended INA precision locknut for radial locking | ZMA50/75 | |
| Recommended INA precision locknut for axial locking | AM50 | |
| Tightening torque for the recommended INA precision locknut | MA | 150 Nm110.619 ft-lbs |
| Required locknut force axial | 28,451 N6,396.358 lbf |
Technical Data34 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore Diameter (D) | 50 mm | |
| Outside Diamater (D) | 140 mm | |
| Total Width (B) | 108 mm | |
| Basic Dynamic Load Rating, Axial (Ca) | 203,000 N | |
| Basic Static Load Rating, Axial (C0A) | 500,000 N | |
| Operating Temperature Min. (Tmin) | -30 °C | |
| Limiting Speed For Grease Lubrication (Ng Grea) | 2,900 1/min | |
| Operating Temperature Max. (Tmax) | 120 °C | |
| Pitch Circle Diameter Fixing Holes (J) | 113 mm | |
| Fatigue Load Limit, Axial (Cua) | 30,500 N | |
| Number Of Holes In Adjacent Construction (Na) | 12 | |
| Bore Diameter Lower Tolerance (Bore Diamete) | -0.005 mm | |
| Contact Angle (Α) | 60 ° | |
| Minimum Diameter Shaft (Da Min) | 63 mm | |
| Width Lower Tolerance (Width Lower) | -0.5 mm | |
| Minimum Chamfer Dimension (R1 Min) | 0.6 mm | |
| Pitch Separation Angle Of Fixing Holes (T) | 30 ° | |
| Width Upper Tolerance (Width Upper) | 0 mm | |
| Maximum Diameter Of Housing (Da Max) | 98 mm | |
| Bore Diameter Upper Tolerance (Bore Diamete) | 0 mm | |
| Rib Diameter Inner Ring (D1) | 80 mm | |
| Distance Of Extraction Slot (I) | 99 mm | |
| Pitch Quantity Of Fixing Holes (N) | 12 | |
| Required Locknut Force Axial (Required Loc) | 28,451 N | |
| Outside Diameter Lower Tolerance (Outside Diam) | -0.1 mm | |
| Tightening Torque For The Recommended Ina Precision Locknut (Ma) | 150 Nm | |
| Minimum Chamfer Dimension (Rmin) | 0.6 mm | |
| Pitch Separation Angle Of Holes In Adjacent Construction (Ta) | 30 ° | |
| Width Of Extraction Slot (B) | 3 mm | |
| Axial Runout (Axial Runout) | 2.5 µm | |
| Fixing Holes Diameter (D2) | 11 mm | |
| Thermally Safe Operating Speed (Nϑ) | 1,200 1/min | |
| Position Tolerance Of Bore In The Housing (T1) | 0.2 mm | |
| Outside Diameter Upper Tolerance (Outside Diam) | 0 mm |
