Bearing steel material-based, high-grade stainless steel, or hybrid ceramic ball bearings, and some also use titanium Process. The basic use of low-end headset ball cage structure, do not use bearings.

27.15 x 38 x 6.5mm   45°/45°          30.15 x 41 x 7 mm    45°/45°         
30.15 x 41 x 6.5mm 45°/45°            30.15 x 41 x 6.5mm 36°/45°      

30.15 x 39 x 6.5mm 45/45°              30.15 x 41.8 x 6.5 mm 45/45°      

30.15 x 41.8 x 7 mm 45/45°             30.5 x 41.8 x 8 mm 45/45°               

30.5 x 41.8 x 8 mm 45/45°               33.5 x 43.8 x 7 mm 30/45°           
34.1 x 46.8 x 7mm 45/45°                34.1 x 46.9 x 7mm 45/45°                

37 x 49 x 7 mm 45/45°                     39.7 x 50.8 x 7mm 90/90° 
40x 51.8 x8 mm 36/45°                    40 x 52 x7 mm 45/45°        

40 x 52 x 8mm 45/45°   40 x 52 x 12mm 45/45°   40 x 52 x 6.5 mm 36/45° 

Axis (BBs) is the most common special regulation ball (which 163110-2RS and 173110-2RS use up) inside use, there are other types of special regulation ball and conventional ordinary ball, as 6802-2RS, 6803-2RS, 6804-2RS, 6805-2RS, 6902-2RS, 6903-2RS, 6905-2RS, and so on. 15267, 15268, 17287, 173110, 163108, 16287, 16277, 6805N, MR2437, 163110

Hubs (front/rear hubs) using conventional single row ball bearing inside more, and some use special rules single/double row ball bearing. As 6804-2RS, 6805-2RS, 6903-2RS, 6904-2RS, 6905-2RS, currently in Taiwan generally upscale hubs, which use a small size specially tapered roller bearings (mainly for high-end car customization). Front wheel hub bearing to separate the main, rear and some use double row bearings, or two separate parallel use.

608 2RS (chrome)   

609 2RS ( chrome)    

6000 2RS (stainless steel)      

6001 2RS (stainless steel)     

6002 2RS (chrome)    

6002 RS (stainless steel)            

6003 2RS (chrome)     

6003 2RS (stainless steel)     

6900 2RS (chrome)          

6901 2RS (stainless steel)    

6902 2RS(stainless steel)        

6903 2RS (chrome)     

6903 2RS (stainless  steel) 

Sprockets in use to 686-2RS, 608-2RS more, with stainless steel or ceramic ball bearings based.

Foot (pedals) which use 686-2RS/ZZ, 688-2RS/ZZ, MR137-ZZ-based, and some also use micro-needle roller bearings HK0810, HK1010.

Pivot (pivots) which use micro thin-walled 688-2RS, 6800-2RS, 6801-2RS, 6900-2RS, 6902-2RS and more.

Item

ID(mm)

OD(mm)

WIDTH(mm)

MH-P09(45°/45°)

27.15

38

6.5

MH-P09H6.3(45°/45°)

27.15

38

6.3

MH-P09K(36°/45°)

27.15

38

6.5

MH-P04 (45°/45°)

30.15

39

6.5

MH-P03 (45°/45°)

30.15

41

6.5

MH-P03K (36°/45°)

30.15

41

6.5

ACB336 (36°/45°)

30.15

41

6.5

ACB345 (45°/45°)

30.15

41

6.5

ACB410.H7 (45°/45°)

30.15

41

7

MH-P08 (45°/45°)

30.15

41.8

6.5

MH-P08F (45°/45°)
(Inner ring with step)

30.15

41.8

6.5

MH-P08/W7 (45°/45°)

30.15

41.8

7

ACB418 (45°/45°)

30.15

41.8

6.5

ACB845 (45°/45°)

30.15

41.8

6.5

ACB418H7 (45°/45°)

30.15

41.8

7

ACB845H8 (36°/45°)

30.15

41.8

8

ACB845F (45°/45°)
(Inner ring with step)

30.15

41.8

8

MH-P08 H8(45°/45°)

30.5

41.8

8

ACB32438-2RS (45°/45°)

32.4

43.8

7

MH-P15 (45°/45°)

33.05

43.8

7

ACB460 (45°/45°)

34.1

46

7

ACB469 (45°/45°)

34.1

46.9

7

MH-P22

34.1

46.9

7

ACB37469 (45°/45°)

37

46.9

7

ACB3749S (45°/45°)

37

49

7

ACB3749 (45°/45°)

37

49

7

T808

40

52

12

ACB518K (36°/45°)

40

51.8

8

ACB25K (36°/45°)

40

52

6.5

ACB520* (36°/45°)

40

52

6.5

MH-P16 (45°/45°)

40

52

7

MH-T808(45°/45°)

40

52

12

ACB520.H7 (45°/45°)

40

52

7

ACB520.H8 (45°/45°)

40

52

8

ACB4052 (45°/45°)

40

52

7

ACB4052H8 (45°/45°)

40

52

8

SS MH-P09

27.15

38

6.5

SS MH-P17

34.1

46.8

7

SS MH-P21

37

49

7

Bicycle Metric Series Bearing

型号

ID

OD

WIDTH

685-2RS

5

11

5

695-2RS

5

13

4

686-2RS

6

13

5

696-2RS

6

15

5

626-2RS

6

19

6

MR137-2RS

7

13

4

688-2RS

8

16

5

698-2RS

8

19

6

608-2RS

8

22

7

689-2RS

9

17

5

699-2RS

9

20

6

MR2297-2RS

9

22

7

609-2RS

9

24

7

6800-2RS

10

19

5

63800-2RS

10

19

7

6900-2RS

10

22

6

6000-2RS

10

26

8

16100-2RS

10

28

8

6200-2RS

10

30

9

MR12174-2RS

12

17

4

6801-2RS

12

21

5

6901-2RS

12

24

6

6901V-2RS

12

24

6

MR12268-2RS

12

26

8

MR12278-2RS

12

27

8

6001-2RS

12

28

8

6201-2RS

12

32

10

6802/14-2RS

14

24

5

6802-2RS

15

24

5

63802-2RS

15

24

7

152415-2RS

15

24

15

MR15267-2RS

15

26

7

MR15268-2RS

15

26

8

6902-2RS

15

28

7

6902V-2RS

15

28

7

6002-2RS

15

32

9

MR16257-2RS

16

25

7

16277-2RS

16

27

7

6902-16-2RS

16

28

7

MR16287-2RS

16

28

7

163010-2RS

16

30

10

MR16318-2RS

16

31

8

163110-2RS

16

31

10

163113-2RS

16

31

13

16329-2RS

16

32

9

MR17255-2RS

17

25

5

6803-2RS

17

26

5

63803-2RS

17

26

7

MR17286-2RS

17

28

6

MR17287-2RS

17

28

7

6903-2RS

17

30

7

173010-2RS

17

30

10

173110-2RS

17

31

10

MR17329-2RS

17

32

9

6003-2RS

17

35

10

MR18287-2RS

18

28

7

MR18307-2RS

18

30

7

61903/18-2RS

18

30

7

MR19285-2RS

19

28

5

MR19327-2RS

19

32

7

MR19317-2RS

19

31

7

19379-2RS

19

39

9

MR190537-2RS

19.05

37

9

MR1905317-2RS

19.05

31

7

MR2520-2RS

20

25

4

MR20307-2RS

20

30

7

MR20317-2RS

20

31

7

6804-2RS

20

32

7

6904-2RS

20

37

9

MR212385-2RS

21.2

38.5

9.5

MR215317-2RS

21.5

31

7

22317-2RS

22

31

7

MR22379-2RS

22

37

9

MR223787-2RS

22

38

7

224212-2RS

22

42

12

R12-2RS/d22

22

41.275

11.112

6805-2RS/d22.5

22.5

37

7

MR2222537

22.225

37

Inner:11.5, Outer:8.00

MR23227-2RS

23

32

7

MR24367-2RS

24

36

7

MR24377-2RS

24

37

7

MR24378-2RS

24

37

8

MR24379-2RS

24

37

9

61805/6-2RS

25

37

6

6805-2RS

25

37

7

6905-2RS

25

42

9

MR275377-2RS

27.5

37

7

ET3528-2RS

28

35

4

MR304076-2RS

30

40

6

MR30407-2RS

30

40

7

6806-2RS

30

42

7

MR314357-2RS

31

43.5

7

6807-2RS

35

47

7

6808-2RS

40

52

7

Bicycle MAX Bearing( without retainers)

B543-2RS MAX

39.7

50.8

7.14

$3.20

605-2RS MAX

5

14

5

687-2RS MAX

7

14

5

688-2RS MAX

8

16

5

698-2RS MAX

8

19

6

698E-2RS MAX

8

19

6/7.5

699-2RS MAX

9

20

6

608-2RS MAX

8

22

7

628-2RS MAX

8

24

8

689-2RS MAX

9

17

5

609-2RS MAX

6800-2RS MAX

10

19

5

63800-2RS MAX

10

19

7

6900-2RS MAX

10

22

6

6000-2RS MAX

10

26

8

6801-2RS MAX

12

21

5

63801-2RS MAX

12

21

7

6901-2RS MAX

12

24

6

6001-2RS MAX

12

28

8

37802-2RS MAX

12.7

24

8.44

6802-2RS MAX

15

24

5

63802-2RS MAX

15

24

7

15267-2RS MAX

15

26

7

6902-2RS MAX

15

28

7

16257-2RS MAX

16

25

7

6803-2RS MAX

17

26

5

63803-2RS MAX

17

26

7

17286-2RS MAX

17

28

6

17287-2RS MAX

17

28

7

6903-2RS MAX

17

30

7

6003-2RS MAX

17

35

10

MR19285-2RS MAX

19

28

5

MR1905317-2RS MAX

19.05

31

7

6804-2RS MAX

20

32

7

21531-2RS MAX

21.5

31

7

2231-2RS MAX

22

31

7

6805-2RS MAX

25

37

7

6806-2RS MAX

30

42

7

6807-2RS MAX

6808-2RS MAX

6809-2RS MAX

45

58

7

7900-2RS MAX(6900-2RS)

10

22

6

7902-2RS MAX(6902-2RS)

15

28

7

R6-2RS MAX

3/8"

7/8"

9/32"

R8-2RS MAX

1/2"

1 1/8"

5/16"

MR215317-2RS MAX

21.5

31

7

B539-2RS MAX

19.05

30.16

7.14

Double Row

398-2RS MAX

3900-2RS MAX

3901-2RS MAX

3902-2RS MAX

3903-2RS MAX

3800-2RS MAX H7

3800-2RS MAX H8

3801-2RS MAX H7

3801-2RS MAX H8

3802-2RS MAX H7

3803-2RS MAX H7

3804-2RS MAX H7

Bicycle Inch Series Bearing

型   号

ID

OD

WIDTH

R4-2RS

1/4"

5/8"

.196"

R6-2RS

3/8"

7/8"

9/32"

R8-2RS

1/2"

1 1/8"

5/16"

R12-2RS

3/4"

1 5/8"

7/16"

R14-2RS

7/8"

1 7/8"

1/2"

1614-2RS

3/8"

1 1/8"

3/8"

1616-2RS

1/2"

1 1/8"

3/8"

PWS3KDD2

3/8"

7/8"

3/8"

PWS1KDD7

1/4"

5/8"

11/32"

KP6A

0.375"

0.875"

0.313"/0.25"

Bicycle Needle Bearing

型   号

ID

OD

WIDTH

HK0810

8

12

10

HK1010

10

14

10

HK1210

12

16

10

HK1614 RS

16

22

14