ROTOLIN Type ML

Type ML

PRELOADED GENERAL PURPOSE BEARINGS FOR COMBINED LINEAR AND ROTARY MOTION

Rotolin "ML" Series ball bearings support rotary and linear relative shaft motions simultaneously and separately. Shaft rigidity and anti-friction freedom is maintained at all times because all the balls are under an intentional preload. All "ML" Series bearings have low-friction moulded nitrile rubber wiper seals.

Larger, heavy duty and special types are available. 
Please call or email outlining your performance requirements 

DIMENSIONS AND SPECIFICATIONS

METRIC RANGE (Dimensions in mm)

Bearing Ref

B
Shaft Dia

D
Bearing O.D.

E

L+.00
-.13

Total Linear
Travel

ML16-28-25

16

28

16

45.00

25

ML16-28-50

55.00

50

ML20-32-25

20

32

21

50.00

25

ML20-32-50

60.00

50

ML25-39-25

25

39

25

55.00

25

ML25-39-50

65.00

50

ML25-39-75

80.00

75

ML25-39-100

95.00

100

ML32-46-25

32

46

36

65.00

25

ML32-46-50

75.00

50

ML32-46-75

90.00

75

ML32-46-100

105.00

100

ML32-46-150

125.00

150

ML40-55-25

40

55

43

70.00

25

ML40-55-50

85.00

50

ML40-55-75

95.00

75

ML40-55-100

110.00

100

ML40-55-150

135.00

150

ML50-70-25

50

70

58.5

85.00

25

ML50-70-50

100.00

50

ML50-70-75

110.00

75

ML50-70-100

125.00

100

ML50-70-150

150.00

150

Bearing reference indicates bearing type, shaft diameter, outside diameter.

 

 


 

INCH RANGE (Dimensions in inches)

Bearing Ref

B
Shaft Dia

D
Bearing O.D.

E

L+.000
    -.005

Total Linear
Travel

ML500-875-1

.5000

.8750

.500

1.625

1.000

ML500-875-2

2.125

2.000

ML625-1000-1

.6250

1.0000

.656

1.875

1.000

ML625-1000-2

2.375

2.000

ML750-1250-1

.7500

1.2500

.843

2.000

1.000

ML750-1250-2

2.500

2.000

ML875-1500-1

.8750

1.5000

1.031

2.250

1.000

ML875-1500-2

2.750

2.000

ML1000-1625-1

1.0000

1.6250

1.281

2.500

1.000

ML1000-1625-2

3.000

2.000

ML1000-1625-3

3.500

3.000

ML1000-1625-4

4.000

4.000

ML1125-1750-1

1.1250

1.7500

1.531

2.750

1.000

ML1125-1750-2

3.250

2.000

ML1125-1750-3

3.750

3.000

ML1125-1750-4

4.250

4.000

ML1250-1875-1

1.2500

1.8750

1.781

3.000

1.000

ML1250-1875-2

3.500

2.000

ML1250-1875-3

4.000

3.000

ML1250-1875-4

4.500

4.000

ML1250-1875-6

5.500

6.000

ML1500-2125-1

1.5000

2.1250

2.000

3.250

1.000

ML1500-2125-2

3.750

2.000

ML1500-2125-3

4.250

3.000

ML1500-2125-4

4.750

4.000

ML1500-2125-6

5.750

6.000

ML1750-2625-1

1.7500

2.6250

2.375

3.625

1.000

ML1750-2625-2

4.125

2.000

ML1750-2625-3

4.625

3.000

ML1750-2625-4

5.125

4.000

ML1750-2625-6

6.125

6.000

ML2000-2875-1

2.0000

2.8750

2.687

4.000

1.000

ML2000-2875-2

4.500

2.000

ML2000-2875-3

5.000

3.000

ML2000-2875-4

5.500

4.000

ML2000-2875-6

6.500

6.000


Type ML

Bearings must be mounted and used with a shaft that produces an interference between the balls and the shaft. This PRELOADS the balls. Shafts should be hardened to at least 60 HRC and be ground to a finish of at least 0.25(im. Assembly of the shaft will require some sliding of the ball cage to locate it in its proper operating position. Balls and outer race are made from carbon chrome bearing steel of 535 A99. Housing and shaft tolerances listed on these two pages will produce the required fit of the housing and interference of the shaft.

 

ENGINEERING DATA

SHAFT AND HOUSING TOLERANCES AND RESULTING FITS

Metric Dimensions

Seal O.D.
A

Housing
Dh*

Shaft
Bs

Preload Interference Fit
Min                  Max

Eccentricity
O.D. to Bore

Max
R.P.M.

Basic Capacity KN

Static Capacity KN

25.5

28.00

+.007
 -.005

16.00

+.000
-.005

.002

.012

.007

13,000

1.57

1.34

29.5

32.00

+.010
 -.005

20.00

+.000
-.005

.002

.012

.010

12,000

1.94

1.91

36.5

39.00

+.013
 -.005

25.00

+.000
-.005

.002

.012

.010

10,000

2.45

2.24

43

46.00

+.013
 -.005

32.00

+.000
-.005

.002

.012

.010

8,000

3.63

4.18

52

55.00

+.013
 -.005

40.00

+.000
 -.005

.002

.012

.010

7,000

4.41

5.37

63.5

70.00

+.013
 -.005

50.00

+.000
-.005

.002

.012

.010

5,000

6.91

9.34

Inch Dimensions

1.000

1.0000

+.0003
-.0002

.6250

+.0000
-.0002

.0001

.0005

.0003

13,000

352

302

1.125

1.2500

+.0004
-.0002

.7500

+.0000
 -.0002

.0001

.0005

.0004

12,000

440

430

1.312

1.5000

+.0004
-.0002

.8750

+.0000
 -.0002

.0001

.0005

.0004

11,000

562

503

1.437

1.6250

+.0004
-.0002

1.0000

+.0000
 -.0002

.0001

.0005

.0004

10,000

688

692

1.562

1.7500

+.0004
-.0002

1.1250

+.0000
 -.0002

.0001

.0005

.0004

9,000

814

907

1.687

1.8750

+.0005
-.0002

1.2500

+.0000
 -.0002

.0001

.0005

.0004

8,000

967

1195

1.937

2.1250

+.0005
-.0002

1.5000

+.0000
 -.0002

.0001

.0005

.0004

7,000

1147

1612

2.312

2.6250

+.0005
-.0002

1.7500

+.0000
 -.0002

.0001

.0005

.0004

6,000

2185

2978

2.562

2.8750

+.0005
-.0002

2.0000

+.0000
-.0002

.0001

.0005

.0004

5,000

2490

3733

Between Shaft, Balls and Outer Sleeve I.D.

Lubrication and Temperature Requirements

All bearings are supplied in rust preventative oil and should be cleaned and lubricated before use. Good quality medium oils and light ball bearing greases have the advantage of greater surface cohesion. High grade light oil will allow a higher operating speed and greater sensitivity to movement. Working temperatures under maximum load conditions should not exceed 120C although the bearings can operate safely at slightly higher temperatures and under decreased load conditions, with special lubricants. For continuous high temperature operation, suitable grades of silicone grease should be used.

CAUTION:Excessive press fits may affect preload. If in doubt please contact us for alternative mounting methods.

 

 

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