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Ball guides assembled (Bushing / Cage)

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

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Part Number
5002002.5001003
5002002.5001004
5002002.5001005
5002003.5001003
5002003.5001004
5002003.5001005
5002004.5001006
5002004.5001007
5002004.5001008
5002005.5001006
5002005.5001007
5002005.5001008
5002006.5001009
5002006.5001010
5002006.5001011
5002006.5001012
5002006.5001013
5002007.5001009
5002007.5001010
5002007.5001011
5002007.5001012
5002007.5001013
5002008.5001014
5002008.5001015
5002008.5001016
5002009.5001014
5002009.5001015
5002009.5001016
5002010.5000021
5002010.5001017
5002010.5001018
5002010.5001019
5002010.5001020
5002010.5001115
5002010.5001116
5002010.5001117
5002011.5000021
5002011.5001017
5002011.5001018
5002011.5001019
5002011.5001020
5002011.5001115
5002011.5001116
5002011.5001117
5002012.5001021
5002012.5001022
5002013.5001021
5002013.5001022
5002014.5001023
5002014.5001024
5002015.5001023
5002015.5001024
5002016.5001025
5002016.5001026
5002016.5001027
5002016.5001028
5002016.5001120
5002016.5001121
5002016.5001122
5002017.5001025

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)
49.71 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	30	7	10	12	12	0	18
50.46 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	50	7	10	12	20	0	34
55.80 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	75	7	10	12	30	0	54
55.09 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	30	7	10	20	12	0	18
55.85 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	50	7	10	20	20	0	34
61.18 €	1	12 Days	Open Guide Bush	Brass Ball Cage	4	75	7	10	20	30	0	54
53.42 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	72	10	14	16	16	0	26
55.25 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	110	10	14	16	25	0	42
58.69 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	180	10	14	16	40	0	72
61.45 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	72	10	14	25	16	0	26
63.28 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	110	10	14	25	25	0	42
66.72 €	1	12 Days	Open Guide Bush	Brass Ball Cage	6	180	10	14	25	40	0	72
58.80 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	150	13	18	20	20	0	30
60.63 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	190	13	18	20	25	0	36
61.34 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	225	13	18	20	30	0	46
63.11 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	300	13	18	20	40	0	64
60.63 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	220	13	18	20	20	0	30
70.71 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	150	13	18	30	20	0	30
72.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	190	13	18	30	25	0	36
73.25 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	225	13	18	30	30	0	46
75.02 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	300	13	18	30	40	0	64
72.54 €	1	12 Days	Open Guide Bush	Brass Ball Cage	8	220	13	18	30	20	0	30
65.58 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	310	15	20	25	28	0	46
72.11 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	440	15	20	25	40	0	70
80.29 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	550	15	20	25	50	0	90
76.42 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	310	15	20	36	28	0	46
82.94 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	440	15	20	36	40	0	70
91.12 €	1	12 Days	Open Guide Bush	Brass Ball Cage	10	550	15	20	36	50	0	90
50.94 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	12	290	17	22	25	21	0	36
64.94 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	260	17	22	25	20	0	34
66.45 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	365	17	22	25	28	0	50
72.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	520	17	22	25	40	0	78
81.15 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	650	17	22	25	50	0	100
77.00 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	580	17	22	25	36	2.5	80
95.26 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	790	17	22	25	48	2.5	110
101.98 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	1010	17	22	25	60	2.5	140
63.65 €	1	12 Days	Open Guide Bush	Plastic Ball Cage	12	290	17	22	36	21	0	36
77.86 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	260	17	22	36	20	0	34
79.37 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	365	17	22	36	28	0	50
85.89 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	520	17	22	36	40	0	78
94.08 €	1	12 Days	Open Guide Bush	Brass Ball Cage	12	650	17	22	36	50	0	100
89.92 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	580	17	22	36	36	2.5	80
108.18 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	790	17	22	36	48	2.5	110
114.91 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	12	1010	17	22	36	60	2.5	140
78.78 €	1	12 Days	Open Guide Bush	Brass Ball Cage	14	580	20	25	33	34	0	60
83.15 €	1	12 Days	Open Guide Bush	Brass Ball Cage	14	910	20	25	33	48	0	90
88.74 €	1	12 Days	Open Guide Bush	Brass Ball Cage	14	580	20	25	44	34	0	60
93.11 €	1	12 Days	Open Guide Bush	Brass Ball Cage	14	910	20	25	44	48	0	90
82.60 €	1	12 Days	Open Guide Bush	Brass Ball Cage	15	645	21	25	33	34	0	60
86.97 €	1	12 Days	Open Guide Bush	Brass Ball Cage	15	910	21	25	33	48	0	90
88.74 €	1	12 Days	Open Guide Bush	Brass Ball Cage	15	645	21	25	44	34	0	60
93.11 €	1	12 Days	Open Guide Bush	Brass Ball Cage	15	910	21	25	44	48	0	90
70.43 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	525	22	28	25	25	0	40
73.45 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	715	22	28	25	34	0	60
77.82 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1025	22	28	25	48	0	90
83.35 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	1325	22	28	25	63	0	124
82.17 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	750	22	28	25	34	2.8	70
86.91 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1180	22	28	25	48	2.8	110
92.78 €	1	12 Days	Open Guide Bush	Brass Ball Cage with Circlip	16	1610	22	28	25	63	2.8	150
75.77 €	1	12 Days	Open Guide Bush	Brass Ball Cage	16	525	22	28	33	25	0	40

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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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C(N)
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48

50

56

60

72

75

78

95

110

112

122

128

130

146

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170

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190

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220

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258

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290

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310

365

415

440

520

525

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715

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d1(mm)
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48

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73

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112
Clear
dB(mm)
6

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18

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22

25

26

28

30

32

35

38

42

48

55

60

65

72

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90

120

140
Clear
L1(mm)
10

12

12.5

15

16

20

25

26

30

31

33

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49

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112

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132

139

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145

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172

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180

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355
Clear
L2(mm)
10

12

12.5

15

16

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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

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100

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108

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144

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162

168

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192

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216

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234

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256

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270

288

306

308

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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

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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