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SKF 7221 Bearing

Bearing 7221 ACD/P4A SKF , SKF bearing

Dimensional Specifications

  • Bore type SKF Bearing
  • Cage material Steel
  • Precision class Class normal (P0)(P6)
  • Old Model 7221
  • Operating Temperature Range -40 to 250 ºF

Connecting Size

Size mating parts (da min.)
117 mm
Size mating parts (Da max.)
178 mm
Size mating parts (ra max.)
2 mm
Size mating parts (rb max.)
1 mm
Size mating parts (db min.)
117 mm
Size (r1.2 min.)
2.1 mm
Size (r3.4 min.)
1.1 mm
Size mating parts (Db max.)
183 mm

Overall dimension

External diameter
105 mm
Internal diameter
190 mm
B Width
36 mm
Weight
3.868 Kgкг

Load and resources

C0 Static load capacity
146 кН
Cr Radial dynamic load
163 кН
Maximum speed with grease lubrication
6700 об/мин
WoilЧастота вращения предельная при жидкой смазке
10000 /миноб/мин

Other

DwДиаметр шарика
26.988 mm
ZКоличество шариков
15
PuПредел усталостной прочности
5.1 кН
Расстояние до действительного центра опоры (a)
52.6 mm
Estimated coefficient (e)
0.68
Size
190x105x36
Size (D1)
163.8 mm
Size (d1)
131.2 mm
d2
131.2 mm
dn
138.4 mm
GrefКонтрольное количество смазки
48.333 cm³
Преднатяг класса A GA
1000 Н
Преднатяг класса B GB
2000 Н
Преднатяг класса C GC
4000 Н
Preload class D GD
8000 Н
Estimated coefficient f
1.08
Estimated coefficient f1
0.99
Estimated coefficient f2A
1
Estimated coefficient f2B
1.01
Estimated coefficient f2C
1.02
Estimated coefficient f2D
1.05
Estimated coefficient fHC
1
Преднатяг класса A
308 Н/мкм
Преднатяг класса B
399 Н/мкм
Преднатяг класса C
527 Н/мкм
Preload class D
708 Н/мкм
Estimated coefficient (одиночный. тандем) Y2
0.87
Estimated coefficient (одиночный. тандем) Y0
0.38
Estimated coefficient (одиночный. тандем) X2
0.41
Estimated coefficient (спина к спине. лицом к лицу) Y1
0.92
Estimated coefficient (спина к спине. лицом к лицу) Y2
1.41
Estimated coefficient (спина к спине. лицом к лицу) Y0
0.76
Estimated coefficient (спина к спине. лицом к лицу) X2
0.67

HOT BEARING PRICES

    1. MODEL
    2. BRAND
    3. IDD
    4. OD
    5. WIDTH
    6. Weight
    1. 7218
    2. SKF
    3. 160
    4. 90
    5. 30
    6. 2.266
    1. 7202
    2. SKF
    3. 35
    4. 15
    5. 11
    6. 0.043
    1. 7021
    2. SKF
    3. 160
    4. 105
    5. 26
    6. 1.592
    1. 7210
    2. SKF
    3. 50
    4. 90
    5. 20
    6. 0.46
    1. 7201
    2. SKF
    3. 32
    4. 12
    5. 10
    6. 0.037
    1. 7220
    2. SKF
    3. 180
    4. 100
    5. 34
    6. 3.242
    1. SS7208
    2. SKF
    3. 40
    4. 80
    5. 18
    6. 0.38
    1. 7219
    2. SKF
    3. 170
    4. 95
    5. 32
    6. 2.702
    1. SS7215
    2. SKF
    3. 75
    4. 130
    5. 25
    6. 1.25
    1. 7222
    2. SKF
    3. 200
    4. 110
    5. 38
    6. 4.631
    1. SS7212
    2. SKF
    3. 60
    4. 110
    5. 22
    6. 0.82
    1. 7214
    2. SKF
    3. 125
    4. 70
    5. 24
    6. 1.108
    1. SS7200
    2. SKF
    3. 10
    4. 30
    5. 9
    6. 0.032
    1. SS7205
    2. SKF
    3. 25
    4. 52
    5. 15
    6. 0.13
    1. SS7211
    2. SKF
    3. 55
    4. 100
    5. 21
    6. 0.62
    1. SS7214
    2. SKF
    3. 70
    4. 125
    5. 24
    6. 1.15
    1. S71921
    2. SKF
    3. 145
    4. 105
    5. 20
    6. 0.847
    1. SS7206
    2. SKF
    3. 30
    4. 62
    5. 16
    6. 0.2
    1. 7226
    2. SKF
    3. 230
    4. 130
    5. 40
    6. 6.33
    1. 7204
    2. SKF
    3. 47
    4. 20
    5. 14
    6. 0.104
    1. 7217
    2. SKF
    3. 150
    4. 85
    5. 28
    6. 1.856
    1. 7216
    2. SKF
    3. 140
    4. 80
    5. 26
    6. 1.46
    1. 7228
    2. SKF
    3. 250
    4. 140
    5. 42
    6. 8.138
    1. 7221
    2. SKF
    3. 190
    4. 105
    5. 36
    6. 3.142
    1. 7215
    2. SKF
    3. 75
    4. 130
    5. 25
    6. 1.2
    1. SS7202
    2. SKF
    3. 15
    4. 35
    5. 11
    6. 0.044
    1. 7213
    2. SKF
    3. 120
    4. 65
    5. 23
    6. 1.027
    1. SS7210
    2. SKF
    3. 50
    4. 90
    5. 20
    6. 0.47
    1. SS7204
    2. SKF
    3. 20
    4. 47
    5. 14
    6. 0.11
    1. 7211
    2. SKF
    3. 100
    4. 55
    5. 21
    6. 0.613

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