Oil seals inside Ø 21mm

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Application range
For sealing rotating machine components
Properties
  • rubber outer sheath compensates for expansion and unevenness in the housing bore
  • With zinc-plated steel spring
Technical info
  • CB: rubber sheath, without dust lip
  • CC: rubber sheath, with dust lip
  • BB: steel sheath, without dust lip
  • BC: steel sheath, with dust lip
  • DB: steel sheath, with reinforcement, without dust lip
  • DC: steel sheath, with reinforcement, with dust lip

Interested in buying products?

Want to know more about the prices or order directly? This is possible when you are affiliated with a dealer in your area. Do you want to sell products via Kramp as a dealer? Then sign up!

  • Tailored advice from our specialists
  • Next-day delivery*
  • More than 500.000 products
Product
Unit

Type

Inside diameter

d1

Outside diameter

d2

Width

h

Dust lip

DIN standard

Max working pressure

Maximum shaft speed

Lip material

Spring material

Min working temperature

Max working temperature

Content in sale unit

Each
BB
21 mm
30 mm
6,5 mm
No
3760
0,2 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Each
CB
21 mm
30 mm
6,5 mm
No
3760
0,5 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Each
CB
21 mm
32 mm
7 mm
No
3760
0,5 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Each
CB
21 mm
35 mm
7 mm
No
3760
0,5 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Each
CC
21 mm
35 mm
7 mm
Yes
3760
0,5 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Each
CC
21 mm
40 mm
7 mm
Yes
3760
0,5 BAR
3 m/s
Nitrile rubber [NBR]
Spring steel
-35 °C
100 °C
1 pcs
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
BB
21
30
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
CB
21
30
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
CB
21
32
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
CB
21
35
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
CC
21
35
Type
Inside diameter (millimetre)
Outside diameter (millimetre)
CC
21
40