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FAFNIR SUPERPRECISION BEARINGS

Medium 3MM300WI Series

3MM301WI

0.13

0.061

1,040

4,600

2,450

10,900

42,800

20

90

40

180

70

310

3MM302WI

0.19

0.087

1,270

5,600

2,600

11,600

34,300

20

90

40

180

80

360

3MM303WI

0.23

0.104

1,600

7,100

3,800

16,900

33,100

25

110

60

270

100

440

3MM304WI

0.30

0.137

2,160

9,600

4,800

21,400

29,000

35

160

80

360

140

620

3MM305WI

0.49

0.221

3,350

14,900

6,800

30,200

23,600

50

220

120

530

200

890

3MM311WI

2.93

1.331

11,800

52,500

20,000

89,000

11,200

175

780

400

1780

700

3110

3MM312WI

3.67

1.663

13,700

60,900

22,800

101,400

10,300

200

890

450

2000

800

3560

3MM313WI

4.63

2.099

17,300

77,000

27,500

122,300

9,500

250

1110

600

2670

1000

4450

3MM314WI

5.61

2.546

20,000

89,000

31,000

137,900

8,800

275

1220

650

2890

1150

5120

3MM319WI 12.30

5.581

34,000

151,200

45,500

202,400

6,700

475

2110

1100

4890

2000

8900

Bearing

Weight

Static

Extended

Permis-

Number

Per Bearing

Load Rating

Dynamic

sible

3MM306WI

0.72

0.328

4,300

19,100

8,500

37,800

19,900

60

270

150

670

250

1110

3MM307WI

0.98

0.443

5,600

24,900

10,200

45,400

17,300

80

360

190

850

350

1560

3MM308WI

1.34

0.608

6,950

30,900

12,500

55,600

15,200

100

440

250

1110

400

1780

3MM309WI

1.78

0.808

8,500

37,800

14,600

64,900

13,600

120

530

300

1330

500

2220

3MM310WI

2.30

1.045

10,000

44,500

17,300

77,000

12,200

140

620

350

1560

600

2670

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

Preload Levels **

Load Ratings

Speed

Co

Ce

Ng *

preloaded and grease lubricated bearing. are equivalent to the table above.

PHYSICAL CHARACTERISTICS - LOAD RATINGS

lbs

kg

lbs

N

lbs

N

RPM

Extralight (DUX)

lbs

N

  • *

    Limits shown for a

** All ceramic hybrid

single row, spring bearing preloads

N

Medium (DUM)

lbs

N

N

lbs

Light (DUL)

lbs

Heavy (DUH)

72

102800

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