Roller Needle Aligning Bearings

1、Conception Our company produces PNA,RPNA series of complete models, good quality, is the best choice to replace imported bearings. According to the different internal structure of the needle roller bearing, there are four types of R, RH, RHA and SR. Because the arc center of the outer ring...

Product Details

1、Conception

Our company produces PNA,RPNA series of complete models, good quality, is the best choice to replace imported bearings.

According to the different internal structure of the needle roller bearing, there are four types of R, RH, RHA and SR. Because the arc center of the outer ring raceway is consistent with the bearing center, it has the property of centering, so it can automatically adjust the misalignment caused by the deflection of shaft or shell or different cores. Can bear radial load and bidirectional axial load. Especially, the radial load capacity is large, which is suitable for bearing heavy load and impact load. Taper bore bearings can be disassembled on the shaft by using fasteners or removable sleeves.

The roller bearing can bear a large radial load and a certain axial load. Self-aligning roller bearing outer ring raceway is spherical shape, so has a self-aligning performance, when the axial stress bending or leaning and make the center line of the center line of the inner ring and outer ring relative tilt is not more than 1 ° ~ 2.5 °, the bearing can still work.

 

2、Use field

The aligning bearing is widely used in rolling screen, ring cooler, hydraulic pump and so on.

 

3、Product features:

A stamping outer ring, an outer ring with a spherical surface, a needle rolling and cage assembly and a detachable inner ring can compensate the maximum shaft tilt deviation of 3 degrees. Easy to install.


Structure

Code name

Shaft scope

Without inner ring

1.jpg

RPNA

Φ5-Φ45

With inner ring

2.jpg

PNA

Φ12-Φ40


mm

g

mm

N

rpm

 

Without inner ring

15

RPNA15/28

32

--

15

28

12

24.5

--

4660

5700

24000

18

RPNA18/32

52

--

18

32

16

27

--

9800

14000

22000

20

RPNA20/35

62

--

20

35

16

30.5

--

10500

15500

21000

25

RPNA25/42

109

--

25

42

20

36.5

--

14900

27800

18000

28

RPNA28/44

112

--

28

44

20

38.5

--

20500

31900

16000

30

RPNA30/47

125

--

30

47

20

42

--

20980

33500

15000

35

RPNA35/52

131

--

35

52

20

47.5

--

21500

39600

13000

40

RPNA40/55

141

--

40

55

20

50.5

--

24000

44700

11000

45

RPNA45/62

176

--

45

62

20

58

--

24800

50900

10000

With inner ring

12

PNA12/28

37

12

15

28

12

24.5

0.5

4660

5700

24000

15

PNA15/32

62

15

18

32

16

27

0.5

9800

14000

22000

17

PNA17/35

73

17

20

35

16

30.5

0.5

10500

15500

21000

20

PNA20/42

136

20

25

42

20

36.5

0.5

14900

27800

18000

22

PNA22/44

145

22

28

44

20

38.5

0.5

20500

31900

16000

25

PNA25/47

157

25

30

47

20

42

0.5

20980

33500

15000

30

PNA30/52

181

30

35

52

20

47.5

0.5

21500

39600

13000

35

PNA35/55

177

35

40

55

20

50.5

0.5

24000

44700

11000

40

PNA40/62

227

40

45

62

20

58

0.5

24800

50900

10000


4、Advantage

Self-aligning roller bearing can be automatically adjusted to 3 ° of the static. Low cross section in the application of the space is lesser, self-aligning roller bearing provides a compact solution. High bearing capacity of the huge number of roller, self-aligning roller bearing capacity is higher 


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