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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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
5002017.5001026
5002017.5001027
5002017.5001028
5002017.5001120
5002017.5001121
5002017.5001122
5002018.5001025
5002018.5001026
5002018.5001027
5002018.5001028
5002018.5001120
5002018.5001121
5002018.5001122
5002019.5001025
5002019.5001026
5002019.5001027
5002019.5001028
5002019.5001120
5002019.5001121
5002019.5001122
5002020.5000001
5002020.5000002
5002020.5001029
5002020.5001030
5002020.5001031
5002020.5001126
5002020.5001127
5002020.5001128
5002020.5001129
5002020.5001130
5002021.5000001
5002021.5000002
5002021.5001029
5002021.5001030
5002021.5001031
5002021.5001126
5002021.5001127
5002021.5001128
5002021.5001129
5002021.5001130
5002022.5000001
5002022.5000002
5002022.5001029
5002022.5001030
5002022.5001031
5002022.5001126
5002022.5001127
5002022.5001128
5002022.5001129
5002022.5001130
5002023.5001032
5002023.5001033
5002023.5001034
5002024.5001032
5002024.5001033
5002024.5001034
5002025.5001032
5002025.5001033
5002025.5001034
5002026.5000017

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)
78.78 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	715	22	28	33	34	0	60
83.15 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1025	22	28	33	48	0	90
88.69 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1325	22	28	33	63	0	124
87.51 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	750	22	28	33	34	2.8	70
92.25 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1180	22	28	33	48	2.8	110
98.12 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1610	22	28	33	63	2.8	150
85.72 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	525	22	28	45	25	0	40
88.74 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	715	22	28	45	34	0	60
93.11 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1025	22	28	45	48	0	90
98.65 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1325	22	28	45	63	0	124
97.46 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	750	22	28	45	34	2.8	70
102.20 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1180	22	28	45	48	2.8	110
108.08 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1610	22	28	45	63	2.8	150
101.23 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	525	22	28	60	25	0	40
104.25 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	715	22	28	60	34	0	60
108.62 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1025	22	28	60	48	0	90
114.15 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1325	22	28	60	63	0	124
112.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	750	22	28	60	34	2.8	70
117.71 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1180	22	28	60	48	2.8	110
123.58 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1610	22	28	60	63	2.8	150
63.71 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	740	24	32	33	23	0	66
64.46 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	960	24	32	33	30	0	88
83.95 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1000	24	32	33	40	0	88
88.37 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1400	24	32	33	56	0	130
92.94 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1700	24	32	33	68	0	162
94.88 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1290	24	32	33	48	2.8	120
98.38 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1550	24	32	33	56	2.8	144
100.15 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1680	24	32	33	60	2.8	156
105.22 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2070	24	32	33	71	2.8	192
107.58 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2200	24	32	33	76	2.8	204
76.09 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	740	24	32	56	23	0	66
76.85 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	960	24	32	56	30	0	88
96.55 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1000	24	32	56	40	0	88
100.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1400	24	32	56	56	0	130
105.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1700	24	32	56	68	0	162
107.48 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1290	24	32	56	48	2.8	120
110.98 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1550	24	32	56	56	2.8	144
112.75 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1680	24	32	56	60	2.8	156
117.82 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2070	24	32	56	71	2.8	192
120.18 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2200	24	32	56	76	2.8	204
82.45 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	740	24	32	64	23	0	66
83.20 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	18	960	24	32	64	30	0	88
103.02 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1000	24	32	64	40	0	88
107.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1400	24	32	64	56	0	130
112.00 €	1	12 Days	Open Guide Bush	Brass Ball Cage	18	1700	24	32	64	68	0	162
113.94 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1290	24	32	64	48	2.8	120
117.45 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1550	24	32	64	56	2.8	144
119.22 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	1680	24	32	64	60	2.8	156
124.28 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2070	24	32	64	71	2.8	192
126.65 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	18	2200	24	32	64	76	2.8	204
83.95 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1080	25	32	33	40	0	88
88.37 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1510	25	32	33	56	0	130
92.94 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1840	25	32	33	68	0	162
96.55 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1080	25	32	56	40	0	88
100.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1510	25	32	56	56	0	130
105.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1840	25	32	56	68	0	162
103.02 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1080	25	32	64	40	0	88
107.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1510	25	32	64	56	0	130
112.00 €	1	12 Days	Open Guide Bush	Brass Ball Cage	19	1840	25	32	64	68	0	162
63.71 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	20	740	26	32	33	23	0	66

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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)
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42

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52

63

80

100
Clear
C(N)
7

9

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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

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170

180

190

202

220

225

235

258

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310

365

415

440

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525

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715

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1025

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1080

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15400

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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

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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

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38

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48

49

50

56

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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

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84

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90

100

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108

110

112

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124

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134

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140

144

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162

168

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180

192

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202

204

212

216

218

234

242

256

258

262

268

270

288

306

308

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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

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Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Tech Support

Technical Support: Tel：+49 69 668173-0 / FAX：+49 69 668173-360; Technical Inquiry

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

(i)Remark

MARMOTION. High-Precision Rotary Stroke Bearings - Product Lineup

General Description

Features

Maximum guiding accuracy

Backlash-free guiding

Smooth running

High loading capacity and guiding rigidity

Rapid movements, high acceleration

Long service life

Minimum maintenance

Interchangeability

Special designs

Basic information

Tech Support

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