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SKF 7228 Bearing

Bearing 7228 ACD/P4A SKF , SKF bearing

Dimensional Specifications

  • Bore type SKF Bearing
  • Cage material Steel
  • Precision class Class normal (P0)(P6)
  • Old Model 7228
  • Operating Temperature Range -40 to 250 ºF

Connecting Size

Size mating parts (da min.)
154 mm
Size mating parts (Da max.)
236 mm
Size mating parts (ra max.)
2.5 mm
Size mating parts (rb max.)
1.5 mm
Size mating parts (db min.)
154 mm
Size (r1.2 min.)
3 mm
Size (r3.4 min.)
1.5 mm
Size mating parts (Db max.)
241 mm

Overall dimension

External diameter
140 mm
Internal diameter
250 mm
B Width
42 mm
Weight
8.138 Kgкг

Load and resources

C0 Static load capacity
228 кН
Cr Radial dynamic load
212 кН
Maximum speed with grease lubrication
5000 об/мин
WoilЧастота вращения предельная при жидкой смазке
7500 /миноб/мин

Other

DwДиаметр шарика
30.162 mm
ZКоличество шариков
18
PuПредел усталостной прочности
7 кН
Расстояние до действительного центра опоры (a)
66.7 mm
Estimated coefficient (e)
0.68
Size
250x140x42
Size (D1)
213.2 mm
Size (d1)
176.8 mm
d2
176.8 mm
dn
184.8 mm
GrefКонтрольное количество смазки
83.931 cm³
Преднатяг класса A GA
1350 Н
Преднатяг класса B GB
2700 Н
Преднатяг класса C GC
5400 Н
Preload class D GD
10800 Н
Estimated coefficient f
1.09
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
397 Н/мкм
Преднатяг класса B
516 Н/мкм
Преднатяг класса C
679 Н/мкм
Preload class D
911 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. SS7213
    2. SKF
    3. 65
    4. 120
    5. 23
    6. 1.05
    1. 7211
    2. SKF
    3. 100
    4. 55
    5. 21
    6. 0.613
    1. S71928
    2. SKF
    3. 190
    4. 140
    5. 24
    6. 1.686
    1. 7208
    2. SKF
    3. 80
    4. 40
    5. 18
    6. 0.373
    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. 7219
    2. SKF
    3. 170
    4. 95
    5. 32
    6. 2.702
    1. 7226
    2. SKF
    3. 230
    4. 130
    5. 40
    6. 6.33
    1. 7207
    2. SKF
    3. 72
    4. 35
    5. 17
    6. 0.285
    1. SS7200
    2. SKF
    3. 10
    4. 30
    5. 9
    6. 0.032
    1. 7028
    2. SKF
    3. 210
    4. 140
    5. 33
    6. 3.421
    1. 7204
    2. SKF
    3. 47
    4. 20
    5. 14
    6. 0.104
    1. 7213
    2. SKF
    3. 120
    4. 65
    5. 23
    6. 1.027
    1. 7212
    2. SKF
    3. 110
    4. 60
    5. 22
    6. 0.809
    1. SS7206
    2. SKF
    3. 30
    4. 62
    5. 16
    6. 0.2
    1. SS7205
    2. SKF
    3. 25
    4. 52
    5. 15
    6. 0.13
    1. SS7208
    2. SKF
    3. 40
    4. 80
    5. 18
    6. 0.38
    1. SS7214
    2. SKF
    3. 70
    4. 125
    5. 24
    6. 1.15
    1. SS7215
    2. SKF
    3. 75
    4. 130
    5. 25
    6. 1.25
    1. 7220
    2. SKF
    3. 180
    4. 100
    5. 34
    6. 3.242
    1. 7203
    2. SKF
    3. 40
    4. 17
    5. 12
    6. 0.063
    1. 7028
    2. SKF
    3. 210
    4. 140
    5. 33
    6. 3.421
    1. SS7210
    2. SKF
    3. 50
    4. 90
    5. 20
    6. 0.47
    1. 7200
    2. SKF
    3. 30
    4. 10
    5. 9
    6. 0.032
    1. SS7202
    2. SKF
    3. 15
    4. 35
    5. 11
    6. 0.044
    1. 7206
    2. SKF
    3. 62
    4. 30
    5. 16
    6. 0.197
    1. 7228
    2. SKF
    3. 250
    4. 140
    5. 42
    6. 6.923
    1. 7209
    2. SKF
    3. 85
    4. 45
    5. 19
    6. 0.41
    1. 7224
    2. SKF
    3. 215
    4. 120
    5. 40
    6. 5.423
    1. 7202
    2. SKF
    3. 35
    4. 15
    5. 11
    6. 0.043

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