Plain bearings of hermetic pumps

Hermetic pumps are designed for pumping chemically active liquids. Absence of leaks is ensured by the drive system through absolutely hermetic insulation. In such pumps there is no mechanical seal of the shaft.

There are 2 main types of sealed pumps:

With the shielded engine (for example: type ЦГ, НГ, БЭН);
With a magnetic clutch.

Hermetic pumps with a shielded motor use radial plain bearings (bushing / insert) made of ceramic materials.

The most common types of plain bearings for sealed pumps with a shielded motor are manufactured according to OST 26-06-1492-87 (drawing designation 8KE).

The following standard sizes are produced in series:

Drawing

D, mm

d, mm

L, mm

bushing 8КЕ 213.325

39,5

24

65

insert 8КЕ 263.271

45

36

55

bushing 8КЕ 213.329

45

32

40

insert 8КЕ 263.150

59

45

36

bushing 8КЕ 213.886

54,85

40

80

insert 8КЕ 263.801

68

55

70

bushing 8КЕ 213.511

64,85

50

105

insert 8КШ 263.009

80

65

93

bushing 8КЕ 213.388

74,85

45

95

insert 8КЕ 263.440

90

75

90


Plain bearings for hermetic pumps with magnetic coupling are making according to the customer's drawings.

Variants of material design of plain bearings:

Reaction-bonded silicon carbide (SCR-Si1, SCR-Si2)
Sintered Silicon Carbide (SCR-S)
Aluminum oxide (ALOX-HP-1, ALOX-HP-2)
Si infiltrate graphite

For hermetic pumps, ceramic enclosures, ceramic shafts and other parts are also manufactured according to the customer's drawings.

Consultation on any issue you are interested in can be obtained from our specialists.

Russia, Sain-Peterrsburg, Kurchatova str., 9
Phone number: +7 (812) 702-12-72, 972-55-29 fax: (812) 702-12-71