Ceramic Bearings

R&M Bearings specialise in the supply of Ceramic Bearings.  Ceramic bearings have excellent performance with their special
electrical and magnetism resistance, wear and corrosion resistance, maintenance free lubrication, high and low temperature resistance etc.  So they are suitable to be used in tough environments and special conditions.

Full ceramic bearings, not to be confused with hybrid ceramic bearings (steel rings & ceramic balls), have many advantages but given their high cost it’s very important to be sure that they will suit your specific application. To help you choose the right bearing, we explain what full ceramic bearings can and can’t do and give some tips on how to choose the right ceramic material.

Our full ceramic ball bearings can be supplied with rings and balls made from zirconia (ZrO2) or silicon nitride (Si3N4). They are available as full complement (no cage) or with a cage made from PEEK or PTFE. Full ceramic bearings are for medium load and medium speed applications. It is not possible to achieve the inner and outer ring roundness that is found with precision steel bearings so full ceramic bearings have lower speed ratings.

They also have lower load ratings than steel bearings. Ceramic materials are much harder than steel but this also means they are more brittle, particularly silicon nitride. This reduces their load ratings.

One benefit of full ceramic bearings is that they are highly corrosion resistant to seawater and most chemicals, including acids and alkalis. They are found in the chemical industry, food and beverage industry, marine applications, chlorine systems, film processing equipment and fuel handling equipment to name just a few areas of use. Full ceramic bearings have excellent low temperature performance which is why they can be found in cryogenic applications. They can also withstand extremely high temperatures so they are often used in furnace applications. As they are non-magnetic, they are suitable for motors used in MRI scanners, magnetometers, semi-conductor manufacturing equipment or any application in which the bearings may be exposed to a strong magnetic field. These bearings are also non-conductive.

Full ceramic bearings are much more expensive than steel bearings which is why they are normally used in more hostile environments. It may be the case that the efficiency savings from using full ceramic bearings are too negligible to make them worth the added cost. We'd be delighted to advise you on the best options as long as we have some basic information on your application (load, speed, temperature, environment etc.).

Ceramic Hybrid Bearings have a lifetime which is 4-8 times longer than traditional bearings. This enables you to reduce operating costs and increase production efficiency.  Our ceramic hybrid bearings are supplied with Stainless Steel rings and balls made from zirconia (ZrO2) or silicon nitride (Si3N4). They are available as full complement (no cage) or with a cage made from PEEK or PTFE. Ceramic hybrid bearings are for medium/high load and high speed applications.

Benefits of using our EEC Ceramic Hybrids:

The below table is a list of our current range of Ceramic Bearings.


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Reference

Type

Dimensions (mm)

Ring Material

Ball Material

15267-2RS-FC-ZRO2

Full Ceramic

15 x 26 x 7

ZrO2 Rings

ZrO2 Balls

60002RS-CH-SS-ZRO2

Ceramic Hybrid

10 x 26 x 8

S/S Rings

ZrO2 Balls

60012RS-CH-SS-ZRO2

Ceramic Hybrid

12 x 28 x 8

S/S Rings

ZrO2 Balls

60012RS-FC-ZRO2

Full Ceramic

12 x 28 x 8

ZrO2 Rings

ZrO2 Balls

60022RS-CH-SS-ZRO2

Ceramic Hybrid

15 x 32 x 9

S/S Rings

ZrO2 Balls

60032RS-CH-SS-ZRO2

Ceramic Hybrid

17 x 35 x 10

S/S Rings

ZrO2 Balls

60042RS-CH-SS-ZRO2

Ceramic Hybrid

20 x 42 x 12

S/S Rings

ZrO2 Balls

60052RS-CH-SS-ZRO2

Ceramic Hybrid

25 x 47 x 12

S/S Rings

ZrO2 Balls

60062RS-CH-SS-ZRO2

Ceramic Hybrid

30 x 55 x 13

S/S Rings

ZrO2 Balls

60062RS-FC-ZRO2

Full Ceramic

30 x 55 x 13

ZrO2 Rings

ZrO2 Balls

6082RS-CH-SI3N4

Ceramic Hybrid

8 x 22 x 7

S/S Rings

Si3N4 Balls

6082RS-FC-ZRO2

Full Ceramic

8 x 22 x 7

ZrO2 Rings

ZrO2 Balls

6092RS-FC-ZRO2

Full Ceramic

9 x 24 x 7

ZrO2 Rings

ZrO2 Balls

618002RS-CH-SS-ZRO2

Ceramic Hybrid

10 x 19 x 5

S/S Rings

ZrO2 Balls

618022RS-FC-ZRO2

Full Ceramic

15 x 24 x 5

ZrO2 Rings

ZrO2 Balls

618032RS-CH-SS-ZRO2

Ceramic Hybrid

17 x 26 x 5

S/S Rings

ZrO2 Balls

618042RS-CH-SS-ZRO2

Ceramic Hybrid

20 x 32 x 7

S/S Rings

ZrO2 Balls

618052RS-CH-SS-ZRO2

Ceramic Hybrid

25 x 37 x 7

S/S Rings

ZrO2 Balls

618062RS-CH-SS-ZRO2

Ceramic Hybrid

30 x 42 x 7

S/S Rings

ZrO2 Balls

618072RS-CH-SS-ZRO2

Ceramic Hybrid

35 x 47 x 7

S/S Rings

ZrO2 Balls

619002RS-CH-SS-ZRO2

Ceramic Hybrid

10 x 22 x 6

S/S Rings

ZrO2 Balls

619012RS-CH-SS-ZRO2

Ceramic Hybrid

12 x 24 x 6

S/S Rings

ZrO2 Balls

619032RS-CH-SS-ZRO2

Ceramic Hybrid

17 x 30 x 7

S/S Rings

ZrO2 Balls

619032RS-FC-ZRO2

Full Ceramic

17 x 30 x 7

ZrO2 Rings

ZrO2 Balls

619042RS-CH-SS-ZRO2

Ceramic Hybrid

20 x 37 x 9

S/S Rings

ZrO2 Balls

619052RS-CH-SS-ZRO2

Ceramic Hybrid

25 x 42 x 9

S/S Rings

ZrO2 Balls

619062RS-CH-SS-ZRO2

Ceramic Hybrid

30 x 47 x 9

S/S Rings

ZrO2 Balls

62012RS-CH-SS-ZRO2

Ceramic Hybrid

12 x 32 x 10

S/S Rings

ZrO2 Balls

62012RS-FC-ZRO2

Full Ceramic

12 x 32 x 10

ZrO2 Rings

ZrO2 Balls

62022RS-CH-SS-ZRO2

Ceramic Hybrid

15 x 35 x 11

S/S Rings

ZrO2 Balls

62022RS-FC-ZRO2

Full Ceramic

15 x 35 x 11

ZrO2 Rings

ZrO2 Balls

62032RS-CH-SS-ZRO2

Ceramic Hybrid

17 x 40 x 12

S/S Rings

ZrO2 Balls

62042RS-CH-SS-ZRO2

Ceramic Hybrid

20 x 47 x 14

S/S Rings

ZrO2 Balls

6204-CH-SS-SI3N4

Ceramic Hybrid

20 x 47 x 14

S/S Rings

Si3N4 Balls

62052RS-CH-SS-ZRO2

Ceramic Hybrid

25 x 52 x 15

S/S Rings

ZrO2 Balls

62062RS-CH-SS-ZRO2

Ceramic Hybrid

30 x 62 x 16

S/S Rings

ZrO2 Balls

63002RS-CH-SS-ZRO2

Ceramic Hybrid

10 x 35 x 11

S/S Rings

ZrO2 Balls

693-FC-ZRO2

Full Ceramic

3 x 8 x 3

ZrO2 Rings

Si3N4 Balls

R42RS-FC-ZRO2

Full Ceramic

1/4 x 5/8 x 10/51

ZrO2 Rings

ZrO2 Balls

UC205-CH-SS-SI3N4

Ceramic Hybrid

25 x 52 x 34.11

S/S Rings

Si3N4 Balls