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KOYO 7228 Bearing

Bearing 7228 KOYO , KOYO bearing

Dimensional Specifications

  • Bore type KOYO 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
Size mating parts (Da max.)
236
Size mating parts (ra max.)
2.5

Overall dimension

External diameter
250 mm
Internal diameter
140 mm
B Width
42 mm
Weight
7.76 Kg
Outer ring width
42 mm

Size Geometric characteristics

rРадиус наружней фаски
3 mm
r1 outer ring (flange) installation chamfer
1.1 mm
αУгол контакта
30°

Load and resources

Dynamic load capacity
218 кН
C0 Static load capacity
234 кН
Cr Radial dynamic load
218 кН
Maximum speed with grease lubrication
2900 об/мин
WoilЧастота вращения предельная при жидкой смазке
3600 об/мин

Protect

Seal Up
Нет

Other

Number of rolling tracks
1
Расстояние до действительного центра опоры (a)
77.3 mm
Size
140x250x42

HOT BEARING PRICES

    1. MODEL
    2. BRAND
    3. IDD
    4. OD
    5. WIDTH
    6. Weight
    1. 7232
    2. KOYO
    3. 160
    4. 290
    5. 48
    6. 12.1
    1. 322/28CR
    2. KOYO
    3. 28
    4. 58
    5. 20.25
    6. 0.255
    1. 7212
    2. KOYO
    3. 60
    4. 110
    5. 22
    6. 0.820
    1. 7202
    2. KOYO
    3. 15
    4. 35
    5. 11
    6. 0.048
    1. DC5072
    2. KOYO
    3. 360
    4. 540
    5. 243
    6. 197
    1. N328
    2. KOYO
    3. 140
    4. 300
    5. 62
    6. 20.1
    1. DAC3577W-2CS72
    2. KOYO
    3. 35
    4. 77
    5. 42
    1. 7211
    2. KOYO
    3. 55
    4. 100
    5. 21
    6. 0.635
    1. DC4972VW
    2. KOYO
    3. 360
    4. 480
    5. 118
    6. 62
    1. 7210
    2. KOYO
    3. 50
    4. 90
    5. 20
    6. 0.485
    1. 28579R/28521
    2. KOYO
    3. 49.987
    4. 92.075
    5. 24.608
    6. 0.71
    1. 323/28CR
    2. KOYO
    3. 28
    4. 68
    5. 25.75
    6. 0.48
    1. 7219
    2. KOYO
    3. 95
    4. 170
    5. 32
    6. 2.78
    1. 23284R
    2. KOYO
    3. 420
    4. 760
    5. 272
    6. 556
    1. DC5028NR
    2. KOYO
    3. 140
    4. 210
    5. 95
    6. 11
    1. AX
    2. KOYO
    3. 15
    4. 28
    5. 4
    6. 0.009
    1. 23280R
    2. KOYO
    3. 400
    4. 720
    5. 256
    6. 468
    1. NTA-2840
    2. KOYO
    3. 44.45
    4. 63.5
    5. 1.984
    6. 0.014
    1. 7028
    2. KOYO
    3. 140
    4. 210
    5. 33
    6. 3.64
    1. 23288R
    2. KOYO
    3. 440
    4. 790
    5. 280
    6. 613
    1. HAR928CA
    2. KOYO
    3. 140
    4. 190
    5. 24
    6. 1.76
    1. 7238
    2. KOYO
    3. 190
    4. 340
    5. 55
    6. 18.8
    1. AR
    2. KOYO
    3. 15
    4. 28
    5. 5
    6. 0.011
    1. 305428-1
    2. KOYO
    3. 200
    4. 279.5
    5. 76
    6. 14
    1. 7244
    2. KOYO
    3. 220
    4. 400
    5. 65
    6. 35.2
    1. 7222
    2. KOYO
    3. 110
    4. 200
    5. 38
    6. 4.65
    1. 7216
    2. KOYO
    3. 80
    4. 140
    5. 26
    6. 1.50
    1. 7221
    2. KOYO
    3. 105
    4. 190
    5. 36
    6. 3.95
    1. FNTKF-4872
    2. KOYO
    3. 48
    4. 72
    5. 4.7
    6. 0.056
    1. NU28/850
    2. KOYO
    3. 850
    4. 1030
    5. 106
    6. 175