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08:12:13 GMT+0000 (Coordinated Universal Time)
HC71921-E-T-P4S-UL
High speed spindle bearing
High speed spindle bearing HC719..-E, adjusted, in pairs or sets, contact angle α = 25°, with ceramic balls, restricted tolerances
Product information
Metric
Imperial
Main Dimensions & Performance Data
d | 105 mm | Bore diameter |
D | 145 mm | Outside diameter |
B | 20 mm | Width |
Cr | 27.500 N | Basic dynamic load rating, radial |
C0r | 22.400 N | Basic static load rating, radial |
Cur | 1.610 N | Fatigue load limit, radial |
nG Grease | 15.000 1/min | Limiting speed for grease lubrication |
nG Oil | 22.000 1/min | Limiting speed for oil lubrication |
≈m | 0,83 kg | Weight |
Mounting dimensions
da | 112 mm | Diameter shaft shoulder |
da | h12 | Diameter shaft shoulder clearance |
Da | 138 mm | Shoulder diameter outer ring |
Da | H12 | Shoulder diameter outer ring clearance |
ra max | 0,6 mm | Maximum recess radius |
ra1 max | 0,6 mm | Maximum recess radius |
Etk min | 120,2 mm | Minimum diameter injection pitch |
Etk max | 121,9 mm | Maximum diameter injection pitch |
Etk1 min | 117,3 mm | Minimum diameter injection pitch |
Etk1 max | 121,9 mm | Maximum diameter injection pitch |
a | 39,1 mm | Distance between the apexes of the pressure cones |
Dimensions
rmin | 1,1 mm | Minimum chamfer dimension |
r1 min | 1,1 mm | Minimum chamfer dimension |
α | 25 ° | Contact angle |
Temperature range
Tmin | -30 °C | Operating temperature min. |
Tmax | 100 °C | Operating temperature max. |
Additional information
FV L | 113 N | Preload force light |
FV M | 338 N | Preload force medium |
FV H | 676 N | Preload force heavy |
KaE L | 323 N | Lift-off force light |
KaE M | 980 N | Lift-off force medium |
KaE H | 1.987 N | Lift-off force heavy |
ca L | 170 N/µm | Axial rigidity light |
ca M | 250 N/µm | Axial rigidity medium |
ca H | 321 N/µm | Axial rigidity heavy |