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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
5002031.5001140
5002031.5001141
5002031.5001142
5002032.5000005
5002032.5000006
5002032.5001040
5002032.5001041
5002032.5001042
5002032.5001140
5002032.5001141
5002032.5001142
5002033.5000005
5002033.5000006
5002033.5001040
5002033.5001041
5002033.5001042
5002033.5001140
5002033.5001141
5002033.5001142
5002034.5000007
5002034.5000008
5002034.5001043
5002034.5001044
5002034.5001045
5002034.5001046
5002034.5001047
5002034.5001048
5002034.5001145
5002034.5001146
5002034.5001147
5002035.5000007
5002035.5000008
5002035.5001043
5002035.5001044
5002035.5001045
5002035.5001046
5002035.5001047
5002035.5001048
5002035.5001145
5002035.5001146
5002035.5001147
5002036.5000007
5002036.5000008
5002036.5001043
5002036.5001044
5002036.5001045
5002036.5001046
5002036.5001047
5002036.5001048
5002036.5001145
5002036.5001146
5002036.5001147
5002037.5000007
5002037.5000008
5002037.5001043
5002037.5001044
5002037.5001045
5002037.5001046
5002037.5001047
5002037.5001048

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)	f (cage) (mm)	k (mm)
135.86 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	2360	30	38	63	52	2.8	198
140.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	3210	30	38	63	70	2.8	270
148.29 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	4070	30	38	63	84	2.8	342
102.05 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	24	1060	30	38	70	23	0	84
102.91 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	24	1320	30	38	70	30	0	112
131.17 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	1730	30	38	70	51	0	146
135.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	2310	30	38	70	68	0	202
140.28 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	2720	30	38	70	80	0	242
142.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	2360	30	38	70	52	2.8	198
147.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	3210	30	38	70	70	2.8	270
155.40 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	4070	30	38	70	84	2.8	342
114.43 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	24	1060	30	38	79	23	0	84
115.29 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	24	1320	30	38	79	30	0	112
143.77 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	1730	30	38	79	51	0	146
148.03 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	2310	30	38	79	68	0	202
152.88 €	1	12 Days	Open Guide Bush	Brass Ball Cage	24	2720	30	38	79	80	0	242
155.57 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	2360	30	38	79	52	2.8	198
160.14 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	3210	30	38	79	70	2.8	270
168.00 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	24	4070	30	38	79	84	2.8	342
81.58 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1060	31	38	45	23	0	84
82.45 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1320	31	38	45	30	0	112
109.20 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1440	31	38	45	40	0	108
110.38 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1840	31	38	45	51	0	146
111.89 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2100	31	38	45	58	0	168
114.65 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2450	31	38	45	68	0	202
119.49 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2880	31	38	45	80	0	242
129.23 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	3600	31	38	45	100	0	308
122.23 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	2360	31	38	45	52	2.8	198
126.75 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	3210	31	38	45	70	2.8	270
134.62 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	4070	31	38	45	84	2.8	342
95.05 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1060	31	38	63	23	0	84
95.91 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1320	31	38	63	30	0	112
122.88 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1440	31	38	63	40	0	108
124.06 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1840	31	38	63	51	0	146
125.57 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2100	31	38	63	58	0	168
128.32 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2450	31	38	63	68	0	202
133.17 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2880	31	38	63	80	0	242
142.91 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	3600	31	38	63	100	0	308
135.91 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	2360	31	38	63	52	2.8	198
140.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	3210	31	38	63	70	2.8	270
148.29 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	4070	31	38	63	84	2.8	342
102.05 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1060	31	38	70	23	0	84
102.91 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1320	31	38	70	30	0	112
129.98 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1440	31	38	70	40	0	108
131.17 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1840	31	38	70	51	0	146
132.68 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2100	31	38	70	58	0	168
135.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2450	31	38	70	68	0	202
140.28 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2880	31	38	70	80	0	242
150.02 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	3600	31	38	70	100	0	308
143.02 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	2360	31	38	70	52	2.8	198
147.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	3210	31	38	70	70	2.8	270
155.40 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	25	4070	31	38	70	84	2.8	342
114.43 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1060	31	38	79	23	0	84
115.29 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	25	1320	31	38	79	30	0	112
142.58 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1440	31	38	79	40	0	108
143.77 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	1840	31	38	79	51	0	146
145.28 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2100	31	38	79	58	0	168
148.03 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2450	31	38	79	68	0	202
152.88 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	2880	31	38	79	80	0	242
162.62 €	1	12 Days	Open Guide Bush	Brass Ball Cage	25	3600	31	38	79	100	0	308

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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

1290

1320

1325

1390

1400

1440

1510

1550

1610

1620

1625

1670

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1700

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1840

1950

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2070

2100

2200

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4390

4420

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6750

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8130

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