Minature ball guide rail / Stainless steel / R0445 / R0455

The miniature version of the ball rail system has been developedspecifically for the precision engineering sector, i.e. for the production ofoptical or electronic data processing devices, where rolling-element linearmotion guideways of extremely compact dimensions and high loadcapacity are required.

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Minature ball guide rail

Formats of Minature ball guide rail

SNS – standard, miniature ball guide rail
without / with cover strip R0445 ... ..

BNS – wide, miniature ball guide rail
without / with cover strip R0455 ... ..

SNS – standard, miniature ball guide rail without / with cover strip R0445 ... ..

Features and Ordering

For runner blocks R0442 and R0444.
Guide rails made of corrosion-resistant, martensitic steel.

Part numbers for guide rails

Size	Accuracy class	Part numbers for guide rails Part number, length L (mm)
		without cover strip	with cover strip
7	P	R0445 702 31,....	–
	H	R0445 703 31,....	–
	N	R0445 704 31,....	–
9/M3	P	R0445 802 31,....	R0445 862 31,....
	H	R0445 803 31,....	R0445 863 31,....
	N	R0445 804 31,....	R0445 864 31,....
12	P	R0445 202 31,....	R0445 262 31,....
	H	R0445 203 31,....	R0445 263 31,....
	N	R0445 204 31,....	R0445 264 31,....
15¹⁾	P	R0445 502 31,....	R0445 562 31,....
	H	R0445 503 31,....	R0445 563 31,....
	N	R0445 504 31,....	R0445 564 31,....
20	P	R0445 002 31,....	R0445 062 31,....
	H	R0445 003 31,....	R0445 063 31,....
	N	R0445 004 31,....	R0445 064 31,....

1) Also available in versions for mounting from below (please ask).

Recommended rail lengths

L = n_B · T – 4

L = rail length (mm)
T = hole spacing (mm)
n_B = number of holes

Ordering example 1:
(up to L_max):
Guide rail size 12, accuracy class P, recommended rail length 771 mm
(30 · T, number of holes n_B = 31, T₁ is identical at both ends of the guide rail)
Ordering data: R0445 202 31, 771 mm

Ordering example 2:
(up to L_max with cover strip):
Guide rail size 12 with cover strip, accuracy class P,
recommended rail length 771 mm (30 · T, number of holes n_B = 31,
T₁ at one end of guide rail = 4.5 mm)
Ordering data: R0445 262 31, 771 mm, T₁ = 4.5 mm
(At the other end of the guide rail T₁ = 16.5 mm for production reasons.)

Ordering example 3:
(composite rail over L_max):
Guide rail size 12, accuracy class N, recommended rail length 1271 mm,
2 sections (50 · T, number of holes n_B = 51, T₁ is identical at both ends of
the composite guide rail)
Ordering data: R0445 204 32, 1271 mm
*2 = Number of sections

Ordering example 4:
(one-piece over L_max):
Guide rail size 12, accuracy class P, recommended rail length 1771 mm
(70 · T, number of holes n_B = 71, T₁ is identical at both ends of the guide rail)
Ordering data: R0445 202 31, 1771 mm

If no T₁ is specified by the customer, both ends of the guide rail will be identical.
The rail lengths were calculated using the formula for recommended rail lengths.

Dimensional Drawing and Specifications

221303469606_EN

Size	Dimensions (mm)									Weight g/100 mm
Size	A₂	H₂¹⁾	N₆	D	S₅	T_1min	T_1max	T	L_1max²⁾³⁾	Weight g/100 mm
7	7	4.7	2.2	4.3	2.5	5.0	11.5	15	1000	22
9/M3	9	5.5	2.2	6.0	3.5	6.0	15.5	20	2000	33
12	12	7.8	3.0	6.0	3.5	6.0	20.5	25	2000	61
15	15	9.5	4.7	6.0	3.5	6.0	35.5	40	2000	97
20	20	15.0	6.5	9.5	6.0	6.5	53.5	60	1000	211

1) Dimensions without cover strip
2) For rail lengths longer than L_max factory-made mating sections are joined end-to-end.
3) For special cases one-piece guide rails up to 2000 mm length possible (please ask).

Note on adjacent structures
Permissible mounting hole tolerances for adjacent structures with one-piece guide rails.

Size	Hole position tolerance (mm)
7 - 20	Ø 0.2

BNS – wide, miniature ball guide rail without / with cover strip R0455 ... ..

Features and Ordering

For runner blocks R0443 and R0441
Mounting hole pattern, size 9/M3, 12: single row
Mounting hole pattern, size 15: double row
Guide rails made of corrosion-resistant, martensitic steel.

Part numbers for guide rails

Size	Accuracy class	Part numbers for wide guide rails Part number, length L (mm)
		without cover strip	with cover strip
9/M3	P	R0455 802 31,....	R0455 862 31,....
	H	R0455 803 31,....	R0455 863 31,....
	N	R0455 804 31,....	R0455 864 31,....
12	P	R0455 202 31,....	R0455 262 31,....
	H	R0455 203 31,....	R0455 263 31,....
	N	R0455 204 31,....	R0455 264 31,....
15	P	R0455 502 31,....	R0455 562 31,....
	H	R0455 503 31,....	R0455 563 31,....
	N	R0455 504 31,....	R0455 564 31,....

Recommended rail lengths

L = n_B · T – 4

L = rail length (mm)
T = hole spacing (mm)
n_B = number of holes

Ordering example 1:
(up to L_max):
Guide rail size 12, accuracy class P, recommended rail length 836 mm
(20 · T, number of holes n_B = 21, T₁ is identical at both ends of the guide rail)
Ordering data: R0455 202 31, 836 mm

Ordering example 2:
(up to Lmax with cover strip):
Guide rail size 9/M3, accuracy class H, recommended rail length 926 mm
(30 · T, number of holes n_B = 31, T₁ at one end of guide rail = 4.5 mm)
Ordering data: R0455 863 31, 926 mm, T₁ = 4.5 mm
(At the other end of the guide rail T₁ = 21.5 mm mm for production reasons)

Ordering example 3:
(composite rail over L_max):
Guide rail size 15, accuracy class N, recommended rail length 1436 mm,
2 sections (35 · T, number of holes n_B = 36 per row, T₁ is identical at both ends of
the composite guide rail)
Ordering data: R0455 504 32, 1436 mm
*2 = Number of sections

Ordering example 4:
(one-piece over L_max):
Guide rail size 12, accuracy class P, recommended rail length 1636 mm
(40 · T, number of holes n_B = 41, T₁ is identical at both ends of the guide rail)
Ordering data: R0455 202 31, 1636 mm

If no T₁ is specified by the customer, both ends of the guide rail will be identical.
The rail lengths were calculated using the formula for recommended rail lengths.

Dimensional Drawing and Specifications

221303469606_EN

Size	Dimensions (mm)										Weight g/100 mm
Size	A₂	H₂¹⁾	N₆	D	S₅	T_1min	T_1max	T	T₃	L_1max²⁾³⁾	Weight g/100 mm
9/M3	18	7.5	2.7	6.0	3.5	6.0	25.5	30	–	1000	92
12	24	8.5	3.7	8.0	4.5	6.0	34.5	40	–	1000	145
15	42	9.5	4.7	8.0	4.5	6.0	34.5	40	23	2000	286

Note on adjacent structures
Permissible mounting hole tolerances for adjacent structures with one-piece guide rails.

Size	Hole position tolerance (mm)
9/M3 - 15	Ø 0.2

Data to be displayed: 30; 45; 60

Part Number
R044500431.L=[73-1000/1]
R044506431.L=[73-1000/1]
R044520431.L=[34-2000/1]
R044526431.L=[34-2000/1]
R044550431.L=[49-2000/1]
R044556431.L=[49-2000/1]
R044570431.L=[30-1000/1]
R044580431.L=[29-2000/1]
R044586431.L=[29-2000/1]
R045550431.L=[52-2000/1]

Minimum order quantity	Standard Shipping Days ?	Rail Type	Rail Width (mm)	Mounting Height H (mm)	Rail Length L (mm)	Accuracy	Nominal Part Number	T Dimension (mm)	Rail Option
1	56 Days	standard Rail	20	25	73 ～ 1000	Normal Grade (normal)	20	60	None
1	56 Days	standard Rail	20	25	73 ～ 1000	Normal Grade (normal)	20	60	With Cover Strip
1	56 Days	standard Rail	12	13	34 ～ 2000	Normal Grade (normal)	12	25	None
1	56 Days	standard Rail	12	13	34 ～ 2000	Normal Grade (normal)	12	25	With Cover Strip
1	56 Days	standard Rail	15	16	49 ～ 2000	Normal Grade (normal)	15	40	None
1	56 Days	standard Rail	15	16	49 ～ 2000	Normal Grade (normal)	15	40	With Cover Strip
1	56 Days	standard Rail	7	8	30 ～ 1000	Normal Grade (normal)	7	15	None
1	56 Days	standard Rail	9	10	29 ～ 2000	Normal Grade (normal)	9/M3	20	None
1	56 Days	standard Rail	9	10	29 ～ 2000	Normal Grade (normal)	9/M3	20	With Cover Strip
1	56 Days	Wide	42	16	52 ～ 2000	Normal Grade (normal)	15	40	None

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Basic information

Set / Single Item	Rail only	Ball Arrangement	Standard	Rolling Element	Ball

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Basic Attributes

Rail Type
- standard Rail
- Wide
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Rail Width(mm)
7

9

12

15

20

42
Clear
Mounting Height H(mm)
8

10

13

16

25
Clear
Rail Length L(mm)
[29-2000/1mm Unit(s)]
Clear
Nominal Part Number
7

9/M3

12

15

20
Clear
T Dimension(mm)
15

20

25

40

60
Clear
Rail Option
- None
- With Cover Strip
Clear
Type
- R0445
- R0455
Clear
Accuracy
- Normal Grade (normal)
- High Grade (high)
- Precision Grade (higher)
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