30208 J2/Q [SKF]محمل بكرات مدبب - 40 X 80 X 19.75 MM
Manufacturer designation:
30208 J2/Q
Designation via standards:
30208 DIN 720, ISO 355;
7208 GOST 27365-87, formerly GOST 333-79
Design:
The bearing consists of two rings (inner and outer) and rolling elements (tapered rollers) which are connected by a cage. The inner ring with a cage and rolling elements is a CONE. The outer ring is a CUP.
The design of tapered roller bearings suites for the perception of combined (radial and axial) loads. Tapered roller bearings have a split construction: the inner ring with the rollers and separator create the unit, that can be mounted separately from the outer ring.
Features:
Metric dimensions
الوزن , W | kg | 0.4 |
---|---|---|
Bore diameter , d | mm | 40 |
القطر الخارجي , D | mm | 80 |
العرض الكلي , T | mm | 19.75 |
عرض القفص , C | mm | 16 |
عرض القفص الداخلي مم , B | mm | 18 |
الحمل الساكن , Co | kN | 68 |
الحمل الديناميكي , C | kN | 75.8 |
السرعة القصوى المسموح بها , Nlim | RPM | 8500 |
زاوية الأتصال , a | ° | 14.036 |
السرعة المرجعية , Nref | RPM | 7000 |