plastic bearings | plastic bearings uk | plastic ball bearings

Plastic ball bearings to fit shaft sizes from 3mm to 50mm diameter
See product table below for dimensions and technical drawings
See Products Variants below for flanged options

Our standard plastic ball bearings have acetal (POM-C) rings and nylon (PA66) cages. They are supplied from our UK stock and offer a low-cost, corrosion resistant option. These bearings are also non-conductive. Bearings with glass balls or plastic balls are non-magnetic while those with 316 stainless steel balls are very slightly magnetic. Acetal resin has excellent corrosion resistance. As it is a much softer material than chrome steel or 440 grade stainless steel, plastic bearings are only suitable for low load and low speed use. Plastic bearings cannot be manufactured to tight tolerances so, like 316 marine grade bearings, they are only suitable for low precision applications. Plastic bearings are significantly lighter than steel bearings. Most of our plastic bearings are supplied from stock in the UK. See Products Variants below for flanged plastic bearings.  

The plastic bearings, shown in the table below, are highly resistant to saltwater and many aggressive chemicals. We can supply plastic bearings with alternative ring or cage materials, such as PEEK, PTFE or PVDF, for greater corrosion resistance or extreme temperatures. Please note that plastic is more prone to temperature induced expansion and contraction. The standard bearings are open but may be supplied with plastic shields on request. See Bearing Materials for more information on plastic grades.

Plastic bearings are used in the marine industry and, depending on the ball and cage materials, can be permanently submerged in seawater. They are also used in corrosive environments in the food and beverage industry, the pharmaceutical industry or any low load, low precision application that is too corrosive for 440 grade stainless steel bearings. PVDF bearings are often used in swimming pools due to their resistance to chlorine. For excellent corrosion resistance but higher load capacity, we offer ceramic bearings in zirconia or silicon nitride.

Acetal bearings with nylon cages have a temperature range of -30°C to 100°C. This range can be extended with the use of different ring and cage materials. PTFE can be used down to -190°C while PEEK is a good high temperature option for up to 250°C.

Click on INFO in the rows below to display technical drawings of the bearings with load and speed data. Please note that the maximum loads and speeds are used in theoretical life calculations. It is recommended to use bearings at significantly less than the maximum load and speed ratings to ensure reasonable bearing life.

 

Products Variants
plastic bearings | plastic bearings uk | plastic ball bearings

Plastic Bearings

Flanged

More Information

Product Details Non-Flanged

BORE

(mm)

O.D.

(mm)

WIDTH

(mm)

SMB REFERENCE

(316 Stainless Balls)

MORE INFO

SMB  REFERENCE

(Glass Balls)

MORE INFO

3

8

3

AC693-316

info

AC693-GL

info

9

3

AC603-316

info

AC603-GL

info

10

4

AC623-316

info

AC623-GL

info

13

5

AC633-316

info

AC633-GL

info

4

9

2.5

AC684-316

info

AC684-GL

info

11

4

AC694-316

info

AC694-GL

info

12

4

AC604-316

info

AC604-GL

info

13

5

AC624-316

info

AC624-GL

info

16

5

AC634-316

info

AC634-GL

info

5

11

3

AC685-316

info

AC685-GL

info

13

4

AC695-316

info

AC695-GL

info

14

5

AC605-316

info

AC605-GL

info

16

5

AC625-316

info

AC625-GL

info

19

6

AC635-316

info

AC635-GL

info

6

13

3.5

AC686-316

info

AC686-GL

info

15

5

AC696-316

info

AC696-GL

info

17

6

AC606-316

info

AC606-GL

info

19

6

AC626-316

info

AC626-GL

info

22

7

AC636-316

info

AC636-GL

info

7

14

3.5

AC687-316

info

AC687-GL

info

17

5

AC697-316

info

AC697-GL

info

19

6

AC607-316

info

AC607-GL

info

22

7

AC627-316

info

AC627-GL

info

26

9

AC637-316

info

AC637-GL

info

8

16

4

AC688-316

info

AC688GL

info

19

6

AC698-316

info

AC698-GL

info

22

7

AC608-316

info

AC608-GL

info

24

8

AC628-316

info

AC628-GL

info

28

9

AC638-316

info

AC638-GL

info

9

17

4

AC689-316

info

AC689-GL

info

20

6

AC699-316

info

AC699-GL

info

24

7

AC609-316

info

AC609-GL

info

26

8

AC629-316

info

AC629-GL

info

30

10

AC639-316

info

AC639-GL

info

10

19

5

AC6800-316

info

AC6800-GL

info

22

6

AC6900-316

info

AC6900-GL

info

26

8

AC6000-316

info

AC6000-GL

info

30

9

AC6200-316

info

AC6200-GL

info

35

11

AC6300-316

info

AC6300-GL

info

12

21

5

AC6801-316

info

AC6801-GL

info

24

6

AC6901-316

info

AC6901-GL

info

28

7

AC16001-316

info

AC16001-GL

info

28

8

AC6001-316

info

AC6001-GL

info

32

10

AC6201-316

info

AC6201-GL

info

37

12

AC6301-316

info

AC6301-GL

info

15

24

5

AC6802-316

info

AC6802-GL

info

28

7

AC6902-316

info

AC6902-GL

info

32

8

AC16002-316

info

AC16002-GL

info

32

9

AC6002-316

info

AC6002-GL

info

35

11

AC6202-316

info

AC6202-GL

info

42

13

AC6302-316

info

AC6302-GL

info

17

26

5

AC6803-316

info

AC6803-GL

info

30

7

AC6903-316

info

AC6903-GL

info

35

8

AC16003-316

info

AC16003-GL

info

35

10

AC6003-316

info

AC6003-GL

info

40

12

AC6203-316

info

AC6203-GL

info

47

14

AC6303-316

info

AC6303-GL

info

20

32

7

AC6804-316

info

AC6804-GL

info

37

9

AC6904-316

info

AC6904-GL

info

42

8

AC16004-316

info

AC16004-GL

info

42

12

AC6004-316

info

AC6004-GL

info

47

14

AC6204-316

info

AC6204-GL

info

52

15

AC6304-316

info

AC6304-GL

info

25

37

7

AC6805-316

info

AC6805-GL

info

42

9

AC6905-316

info

AC6905-GL

info

47

8

AC16005-316

info

AC16005-GL

info

47

12

AC6005-316

info

AC6005-GL

info

52

15

AC6205-316

info

AC6205-GL

info

62

17

AC6305-316

info

AC6305-GL

info

30

42

7

AC6806-316

info

AC6806-GL

info

47

9

AC6906-316

info

AC6906-GL

info

55

9

AC16006-316

info

AC16006-GL

info

55

13

AC6006-316

info

AC6006-GL

info

62

16

AC6206-316

info

AC6206-GL

info

72

19

AC6306-316

info

AC6306-GL

info

35

47

7

AC6807-316

info

AC6807-GL

info

55

10

AC6907-316

info

AC6907-GL

info

62

14

AC6007-316

info

AC6007-GL

info

72

17

AC6207-316

info

AC6207-GL

info

40

52

7

AC6808-316

info

AC6808-GL

info

62

12

AC6908-316

info

AC6908-GL

info

68

15

AC6008-316

info

AC6008-GL

info

80

18

AC6208-316

info

AC6208-GL

info

45

58

7

AC6809-316

info

AC6809-GL

info

68

12

AC6909-316

info

AC6909-GL

info

75

16

AC6009-316

info

AC6009-GL

info

85

19

AC6209-316

info

AC6209-GL

info

50

65

7

AC6810-316

info

AC6810-GL

info

72

12

AC6910-316

info

AC6910-GL

info

80

16

AC6010-316

info

AC6010-GL

info

90

20

AC6210-316

info

AC6210-GL

info

Our determination to remain specialised gives us a high level of product knowledge, providing bearing and lubrication solutions to existing or potential customers, whether individuals or large corporations. We don’t just sell bearings, we help to solve your problems. - Chris Johnson, managing director of SMB Bearings.