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Ball guides assembled (Bushing / Cage) (Part Numbers)

Ball-bearing guides for linear and rotational movements without backlash for use in all technical areas where reliability and precision are required.

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Catalog

MARMOTION. High-Precision Rotary Stroke Bearings - Product Lineup

Guide Shafts

N400		to DIN 9825
N421		with internal thread on press - in side
N423		with internal thread on guide side
N425		with internal thread on both sides

Ball Cages

N500		Plastic
N501		Brass
N511		Brass with Circlip

Guide Bushes

N550		open
N552		closed with Stop Rings
N553		closed with Sealing Rings
N570		closed with Wiper Seals

Ball Cages Mini Range

N502

Brass

Guide Bushes Mini Range

N550		open
N552		closed with Stop Rings

Bellows

N820

Chrome Leather

General Description

Recent decades have seen high-precision Mahr MarMotion rotary stroke bearings for linear and rotary motion extend their area of application from the pressing tool sector to include general mechanical engineering, precision mechanical and optical engineering and a wide range of specialized fields.
In the course of this development work, Mahr has devised computation formulae based on the company's long experience and supported by close cooperation with various technical colleges and universities. This expertise helps designers to optimize the rotary stroke bearing for a particular application. This results in excellent guiding accuracy, optimum reliability and long service life.
The rotary stroke bearings manufactured with great precision by Mahr mean that the user can be sure that components are interchangeable. The MarMotion high-precision rotary stroke bearing can therefore be considered an integral part of the mechanical and design elements.

Features

The main features of the MarMotion high-precision rotary stroke bearings are as follows:

Maximum guiding accuracy

The MarMotion high-precision rotary stroke bearing offers high guiding accuracy for both linear and rotary movements. This is guaranteed by the micro-finished running faces of shafts and bushes, whose accuracy of form in terms of roundness and cylindricity lies within 1/3 of ISO tolerance class IT 3. The exclusive use of grade 5, sorting class P0 steel balls (DIN 5401 or ISO 3290) also contributes to the high degree of guiding accuracy.

Backlash-free guiding

There is no backlash whatsoever in the guide because the balls are preloaded under a tension of a few μm between the shaft and the bush. Optimum preloading is ensured in the factory by pairing the shaft, ball cage and bush. This simplifies the process of fitting the rotary stroke bearing.

Smooth running

The MarMotion high-precision rotary stroke bearing ensures both maximum guiding accuracy and very low friction.
A pure contact rolling motion of the balls on the micro-finished running faces ensures very low friction. The coefficient of friction lies between 0.001 and 0.008 and ensures smooth running.

High loading capacity and guiding rigidity

The dense arrangement of the balls and the high form and dimensional accuracy of the balls and bearing faces provide a large number of contact points, thereby ensuring uniform distribution of the load in the guide. The designer can make optimum use of the available space. The functional reliability of the guide is significantly increased.

Rapid movements, high acceleration

The low friction rolling action in the MarMotion high-precision rotary stroke bearing enables rapid movements and high acceleration. The low inertia forces of plastic cages make these particularly well suited for high-frequency linear and rotary movements.

Long service life

Careful selection and heat treatment of the materials used, coupled with top quality bearing faces, means that the MarMotion high-precision rotary stroke bearings are particularly resistant to abrasion.

Minimum maintenance

In most cases, a thin film of lubricant is sufficient for several months' continuous operation. The outlay required for maintenance during operation is minimal.

Interchangeability

All individual components are interchangeable. This is due to continuous quality control, the exclusive use of balls of sorting group P0, and the machining of shafts and bushes to a high standard of precision. This ensures problem-free continuous operation.

Special designs

The extensive range of MarMotion high-precision rotary stroke bearings offers appropriate solutions for many different applications. We can also manufacture special designs for particular applications and requirements on the basis of workpiece drawings. Using alternative materials can also open up new possibilities.

Data to be displayed: 30; 45; 60

Part Number
5003072.5001026
5003073.5001025
5003073.5001026
5003073.5001027
5003074.5001025
5003074.5001026
5003074.5001027
5003074.5001028
5003076.5000276
5003077.5000276
5003077.5000277
5003077.5000278
5003078.5000276
5003078.5000277
5003078.5000278
5003083.5000017
5003083.5000018
5003083.5001093
5003084.5000017
5003084.5000018
5003084.5001035
5003084.5001036
5003084.5001093
5003085.5000017
5003085.5000018
5003085.5001035
5003085.5001036
5003085.5001037
5003085.5001093
5003086.5000017
5003086.5000018
5003086.5001035
5003086.5001036
5003086.5001037
5003086.5001038
5003086.5001039
5003086.5001093
5003093.5000007
5003093.5000008
5003094.5000007
5003094.5000008
5003094.5001043
5003094.5001044
5003095.5000007
5003095.5000008
5003095.5001043
5003095.5001044
5003095.5001045
5003095.5001046
5003096.5000007
5003096.5000008
5003096.5001043
5003096.5001044
5003096.5001045
5003096.5001046
5003096.5001047
5003096.5001048
5003099.5000011
5003099.5000012
5003099.5001052

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	Bushing type	Cage type	dw (mm)	C (N)	d1 (mm)	dB (mm)	L1 (mm)	L2 (mm)	k (mm)	L3 (mm)
100.48 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	715	22	28	45	34	60	39
114.58 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	525	22	28	60	25	40	54
117.60 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	715	22	28	60	34	60	54
121.97 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	1025	22	28	60	48	90	54
162.83 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	525	22	28	92	25	40	86
165.85 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	715	22	28	92	34	60	86
170.22 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	1025	22	28	92	48	90	86
175.75 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	16	1325	22	28	92	63	124	86
103.12 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	295	22	28	45	30	84	39
120.14 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	295	22	28	60	30	84	54
125.46 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	415	22	28	60	40	118	54
131.82 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	530	22	28	60	50	152	54
168.38 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	295	22	28	92	30	84	86
173.71 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	415	22	28	92	40	118	86
180.06 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage - Mini Range	18	530	22	28	92	50	152	86
80.62 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	740	26	32	42	23	66	36
81.37 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	960	26	32	42	30	88	36
99.51 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	870	26	32	42	28	56	36
90.52 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	740	26	32	56	23	66	50
91.28 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	960	26	32	56	30	88	50
111.31 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1160	26	32	56	40	88	50
113.14 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1390	26	32	56	48	108	50
109.63 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	870	26	32	56	28	56	50
97.52 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	740	26	32	64	23	66	58
98.28 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	960	26	32	64	30	88	58
118.42 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1160	26	32	64	40	88	58
120.25 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1390	26	32	64	48	108	58
122.83 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1620	26	32	64	56	130	58
116.74 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	870	26	32	64	28	56	58
169.57 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	740	26	32	112	23	66	106
170.32 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	20	960	26	32	112	30	88	106
191.75 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1160	26	32	112	40	88	106
193.58 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1390	26	32	112	48	108	106
196.17 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1620	26	32	112	56	130	106
200.74 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	1970	26	32	112	68	162	106
207.31 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	2320	26	32	112	80	194	106
190.08 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	20	870	26	32	112	28	56	106
97.52 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1060	31	38	45	23	84	38
98.38 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1320	31	38	45	30	112	38
112.92 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1060	31	38	63	23	84	56
113.78 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1320	31	38	63	30	112	56
141.08 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1440	31	38	63	40	108	56
142.26 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1840	31	38	63	51	146	56
130.80 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1060	31	38	79	23	84	72
131.66 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1320	31	38	79	30	112	72
159.28 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1440	31	38	79	40	108	72
160.46 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1840	31	38	79	51	146	72
161.97 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	2100	31	38	79	58	168	72
164.72 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	2450	31	38	79	68	202	72
241.40 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1060	31	38	132	23	84	125
242.26 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	25	1320	31	38	132	30	112	125
271.92 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1440	31	38	132	40	108	125
273.11 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	1840	31	38	132	51	146	125
274.62 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	2100	31	38	132	58	168	125
277.37 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	2450	31	38	132	68	202	125
282.22 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	2880	31	38	132	80	242	125
291.95 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	25	3600	31	38	132	100	308	125
124.77 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	32	1400	40	48	63	25	75	55
125.57 €	1	12 Days	Closed Guide Bush with Stop Rings	Plastic Ball Cage	32	1680	40	48	63	30	90	55
160.63 €	1	12 Days	Closed Guide Bush with Stop Rings	Brass Ball Cage	32	3030	40	48	63	54	138	55

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Basic information

Sales Operation	Set	No. of Bushings	1	Shaft type	No shaft
f (shaft)(mm)	0

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Basic Attributes

Bushing type
- Closed Guide Bush with Sealing Rings
- Closed Guide Bush with Stop Rings
- Closed Guide Bush with Wiper Seals
- Open Guide Bush
Clear
Cage type
- Brass Ball Cage
- Brass Ball Cage - Mini Range
- Brass Ball Cage with Circlip
- Plastic Ball Cage
Clear
dw(mm)
2.5

3

4

5

6

8

10

12

14

15

16

18

19

20

24

25

30

32

40

42

50

52

63

80

100
Clear
C(N)
7

9

11

14

15

19

23

24

26

29

30

34

35

40

48

50

56

60

72

75

78

95

110

112

122

128

130

146

150

170

180

190

202

220

225

235

258

260

290

295

300

310

365

415

440

520

525

530

550

580

645

650

715

740

750

790

870

910

960

1000

1010

1025

1060

1080

1160

1180

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1325

1390

1400

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1950

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6750

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8800

9750

10800

11200

13300

14000

14400

15400

18500

18900

22000

22400

30100

33000

36000

49000
Clear
d1(mm)
4.1

5

6

7

8

10

13

15

17

20

21

22

24

25

26

30

31

38

40

48

50

60

62

73

92

112
Clear
dB(mm)
6

7

8

10

11

14

18

20

22

25

26

28

30

32

35

38

42

48

55

60

65

72

77

90

120

140
Clear
L1(mm)
10

12

12.5

15

16

20

25

26

30

31

33

35

36

38

40

42

44

45

46

48

49

50

56

57

58

60

63

64

65

66

70

71

73

75

78

79

80

82

83

86

90

92

96

97

100

112

119

120

125

126

132

139

140

145

150

152

160

172

178

180

210

220

260

315

355
Clear
L2(mm)
10

12

12.5

15

16

20

21

23

25

28

30

34

35

36

40

48

50

51

52

54

56

58

60

62

63

68

70

71

75

76

77

78

80

84

87

88

90

93

95

100

102

108

110

125

135

140

150

160

165

180

185

215

220

245
Clear
f (cage)(mm)
- 0
- 2.5
- 2.8
- 4.8
Clear
k(mm)
18

22

24

26

28

30

34

36

38

40

42

46

50

54

56

60

64

66

70

72

75

76

78

80

84

88

90

100

104

108

110

112

118

120

122

124

130

134

138

140

144

146

150

152

154

156

162

168

176

180

192

194

196

198

202

204

212

216

218

234

242

256

258

262

268

270

288

306

308

310

318

322

328

336

342

360

382

386

402

428

468

486

562

578

602

662

668

696

922
Clear
L3(mm)
0

11

13

18

22

23

27

28

33

36

38

39

42

47

50

54

55

56

58

59

63

64

66

67

70

72

74

82

86

96

106

108

110

123

124

125

137

147

150

162

178

183

230

273

320
Clear
e(mm)
0

51

53

56

66

83

98

110

115

135

138

170

180

218

275

310
Clear
m(mm)
- 0
- 6
- 8
- 10
- 12
- 15
Clear
n(mm)
- 0
- 16
- 19
- 22
- 25
- 28
- 31
- 34
- 36
Clear