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FAFNIR SUPERPRECISION BEARINGS

Medium MM300K Series Deep Groove Conrad

lbs

kg

lbs

N

lbs

N

RPM

MM305K-CR

0.49

0.222

2,750

12,200

6000

26,700

26,500

MM306K-CR

0.72

0.327

3,550

15,800

7,650

34,000

22,300

MM307K-CR

0.95

0.431

4,150

18,500

8,500

37,800

19,400

MM308K-CR

1.31

0.594

5,100

22,700

10,400

46,300

17,100

MM309K-CR

1.78

0.807

7,100

31,600

13,400

59,600

15,200

MM310K-CR

2.32

1.052

8,500

37,800

15,600

69,400

13,800

MM311K-CR

2.93

1.329

10,000

44,500

18,300

81,400

12,500

MM312K-CR

3.67

1.665

11,600

51,600

20,800

92,500

11,500

MM313K-CR

4.51

2.046

13,400

59,600

23,600

105,000

10,700

MM314K-CR

5.48

2.486

15,300

68,100

26,000

115,600

9,900

Bearing

Weight

Static

Number

Per Bearing

Load Rating

Permissible Speed (grease) (2)

(1) Ce should be used for calculating bearing life only, and should not be confused with CO which is the maximum radial load a bearing can safely support.

(2) Limits shown for a single row, spring preloaded and grease lubricated bearing. For standard, non-preloaded applications, do not exceed 350,000 dN.

Extended Dynamic Load Ratings Ce

(1)

RADIAL LOAD RATING AT 33 13 RPM Based on 1500 Hours L10 Life and Permissible Speed

Co

102800

79

SUPERPRECISION BEARINGS

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