MECHANICAL SEALS
  • Cross Reference(Catalogue)
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  • Cartridge Seals
    		•
  • Metal bellows seals
    		•
  • Replace Burgmann&BT
    		•
  • Replace Johncrane&SEALOL
    		•
  • Flygt Pump seals
    		•
  • Replace Eagle&Latty&Roten&PAC-Seal&Umbra & Chesterton
    		•
  • Replace AES
    		•
  • For Automobile Air-Condition Compressor Seal
    		•
  • For Auto Cooling Pump Seal
    		•
  • Popular seals
    		•
  • Wave Spring and other springs
    		•
    SEALING MATERIAL
  • Tungsten Carbide
    		•
  • SIC & SSIC
    		•
  • Carbon(Graphite)
    		•
  • O-Rings and Rubber Parts
    		•
  • Ceramic
    		•
  • PTFE
    		•
    OIL SEALS
  • TC Double oil seals
    		•
    OTHERS PRODUCTS
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    SJ8B1

     

                       Replace John crane Type 8B1
    　 　 　 　 　 　 　 　
                       Main Characteristics:
                       Pressure: <2.4Mpa   
                       Speed: <25m/s   
                       Temperature: -400C 」 2600C
                       MATERIALS:
                       Seal Face: Carbon/SIC/TC 
                       Stationary Ring: Ceramic/SIC/TC             
                       Secondary Ring: Pure PTFE/Carbon/NBR/EP/VITON   
                       Spring&Other Parts: SUS316/Alloy 400(Monel)

    Model
    d
    d1
    D
    d4
    d6
    D1
    L1
    L3
    L4
    SJ8B1-5/8"
    12.7
    15.87
    30.8
    34
    17.5
    31.95
    27.0
    10.30
    7.5
    SJ8B1-3/4"
    15.9
    19.50
    34.0
    37
    21
    35.12
    30.0
    10.30
    7.8
    SJ8B1-7/8"
    19.1
    22.22
    37.2
    40
    24
    38.30
    32.0
    10.30
    8.0
    SJ8B1-1"
    22.2
    25.40
    40.3
    43
    27.5
    41.48
    33.0
    11.15
    8.0
    SJ8B1-1 1/8"
    25.4
    28.58
    43.4
    46
    30.5
    44.65
    35.0
    11.15
    7.9
    SJ8B1-1 1/4"
    28.6
    31.37
    48.3
    51
    33.5
    47.83
    35.0
    11.15
    7.9
    SJ8B1-1 3/8"
    28.6
    34.93
    51.3
    54
    37
    51.00
    37.0
    11.15
    8.7
    SJ8B1-1 1/2"
    31.8
    38.10
    54.5
    58
    40
    54.18
    37.0
    11.15
    8.7
    SJ8B1-1 5/8"
    34.9
    41.28
    60.8
    64
    43.5
    60.53
    45.0
    12.75
    8.7
    SJ8B1-1 3/4"
    38.1
    44.45
    64.0
    67
    46.5
    63.70
    45.0
    12.75
    9.5
    SJ8B1-1 7/8"
    41.3
    47.63
    67.2
    70
    49.5
    66.88
    45.0
    12.75
    9.5
    SJ8B1-2"
    44.5
    50.80
    70.4
    73
    53
    70.05
    45.0
    12.75
    9.5
    SJ8B1-2 1/8"
    47.6
    53.98
    76.7
    80
    56
    76.40
    52.0
    14.33
    11.1
    SJ8B1-2 1/4"
    50.8
    57.15
    79.9
    83
    59
    79.58
    52.0
    14.33
    11.1
    SJ8B1-2 3/8"
    54.0
    60.33
    83.1
    86
    62.5
    82.75
    52.0
    14.33
    11.1
    SJ8B1-2 1/2''
    57.2
    63.50
    86.2
    89
    65.5
    85.93
    52.0
    14.33
    11.1
    SJ8B1-2 5/8"
    60.3
    66.68
    89.4
    92
    68.5
    85.93
    52.0
    15.93
    11.1
    SJ8B1-2 3/4"
    63.5
    69.85
    92.6
    96
    72
    89.10
    52.0
    15.93
    11.1
    SJ8B1-2 7/8"
    66.7
    73.03
    95.8
    99
    75
    95.45
    52.0
    15.93
    11.1
    SJ8B1-3"
    69.9
    76.20
    97.3
    100
    78.5
    98.63
    52.0
    15.93
    11.1
    SJ8B1-3 1/8"
    73.0
    79.38
    100.5
    104
    81.5
    101.80
    52.0
    19.84
    11.1
    SJ8B1-3 1/4"
    76.2
    82.55
    105.3
    108
    84.5
    104.98
    52.0
    19.84
    14.3
    SJ8B1-3 3/8"
    79.4
    85.73
    108.5
    111
    88.5
    108.15
    43.0
    19.84
    14.3
    SJ8B1-3 1/2"
    82.6
    88.90
    111.6
    115
    91.0
    111.13
    43.0
    19.84
    14.3
    SJ8B1-3 5/8"
    85.7
    92.08
    114.8
    118
    94.0
    114.35
    43.0
    19.84
    14.3
    SJ8B1-3 3/4"
    88.9
    95.25
    118.0
    121
    97.5
    117.68
    43.0
    19.84
    14.3
    SJ8B1-3 7/8"
    92.1
    98.43
    121.2
    124
    100.5
    120.85
    43.0
    19.84
    14.3
    SJ8B1-4"
    95.3
    101.60
    124.3
    127
    103.5
    124.03
    43.0
    19.84
    14.3
    SJ8B1-4 1/8"
    98.4
    104.78
    130.2
    134
    107.0
    130.38
    42.9
    19.84
    14.3
    SJ8B1-4 1/4"
    101.6
    107.95
    133.4
    137
    110.0
    133.55
    42.9
    19.84
    14.3
    SJ8B1-4 3/8"
    104.8
    111.13
    136.5
    140
    113.5
    136.72
    42.9
    19.84
    14.3
    SJ8B1-4 1/2"
    107.9
    114.30
    139.7
    143
    116.5
    139.90
    4, 2, .9
    		 ,,
    19.84
    14.3
    SJ8B1-4 5/8"
    111.1
    117.48
    142.9
    146
    119.5
    143.08
    42.9
    19.84
    15.8
    SJ8B1-4 3/4"
    114.3
    120.65
    146.1
    149
    122.5
    146.25
    42.9
    19.84
    15.8
    SJ8B1-4 7/8"
    114.7
    123.83
    149.2
    153
    126.0
    149.43
    42.9
    19.84
    15.8
    SJ8B1-5"
    120.6
    127.00
    152.4
    156
    129.0
    152.60
    42.9
    19.84
    15.8
    SJ8B1-5 1/8"
    		  
    123.8
    130.18
    		 155.6
    159
    132.0
    155.77
    42.9
    19.84
    15.8
    SJ8B1-5 1/4"
    127.0
    133.35
    165.1
    168
    135.5
    158.95
    50.8
    19.84
    15.8
    SJ8B1-5 3/8"
    130.2
    136.53
    161.9
    165
    138.5
    162.12
    50.8
    19.84
    15.8
    SJ8B1-5 1/2"
    133.3
    139.70
    171.5
    175
    141.5
    165.30
    50.8
    19.84
    15.8
    SJ8B1-5 5/8'
    136.5
    142.88
    174.6
    178
    145.0
    168.47
    50.8
    19.84
    15.8
    SJ8B1-5 3/4'
    139.7
    146.05
    177.8
    181
    149.0
    177.23
    50.8
    25.40
    15.8
    SJ8B1-5 7/8"
    142.9
    149.23
    181.0
    184
    152.5
    180.41
    50.8
    25.40
    15.8
    SJ8B1-6"
    146.0
    152.40
    184.2
    188
    155.5
    183.59
    50.8
    25.40
    15.8

     
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