BOSCH REXROTH
R201172290

$1,142.94 USD

BOSCH REXROTH
Material:R201172290
Model:KWD-030-SNS-C2-P-1

Quantity in stock: 0

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***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth B.RUNNER BLOCK HS KWD-030-SNS-C2-P-1 (R201172290) is a high-speed ball runner block designed for precision and speed in linear motion applications. This runner block features a slimline SNS format with a normal length and standard height, constructed from carbon steel CS for durability. It is classified under preload class C, indicating an average preload, and accuracy class P for precision applications. The product does not include a ball chain and comes with initial lubrication and preservation. The runner block’s body is of the standard version with an overall length of . mm. It offers interchangeability with guide rails of every accuracy, ensuring flexibility in use. Its design facilitates maximum speeds and system rigidity due to the preloaded O-arrangement. The use of ceramic balls allows for electrically insulating properties, high speeds due to lower weight, and the option for long-term lubrication extending over several years. Attachments can be mounted from above on the ball runner block, which also features lube fittings with metal threads on all sides for easy maintenance. It is compatible with all SNS/SNO ball guide rails and supports high load ratings in all four main directions of loading. The design ensures smooth, quiet operation due to the optimally designed ball return and guideway. The product has a permissible ambient temperature range from min ... max °C, suitable for various environments (consultation required for negative temperatures). Additionally, it boasts dynamic load capacity C based on DIN ISO standards with a friction coefficient of 0...0.. The product comes prelubricated from the factory and is available in eight common sizes to suit different installation requirements.

High-speed ball runner block, SNS, size 30, steel CS, accuracy precision, average preload, without ball chain

The ball runner block is highly precise and enables very high travel speeds. Additionally, it is characterized by the following product features:
Size 30
Format SNS: Width = slimline, length = normal, height = standard
Runner block body made of carbon steel CS
Preload class C2: Medium preload
Accuracy class P: Precision
Without ball chain
With initial lubrication and preservation
Roller bearing grease Dynalub 510
Without attachment element, left (front reference edge)
Without attachment element, right (front reference edge)
Straight lube connection loosely attached.
Runner block body in standard version
Overall length of the runner block = 97.7 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 0.850 kg

Product description of Ball Rail Systems

Production description – Ball Runner Block

Materials

Selection of a linear guide acc. to DIN 637

Ball chain and seals

Design and version

Friction

technical illustration-R201172290-High-speed ball runner block, SNS, size 30, steel CS, accuracy precision, average preload, without ball chain

Due to the Rexroth design with four rows of balls, 2-point contact is available in all loading directions. This reduces the friction to a minimum.

Other ball rail systems with two or four rows of balls with 4-point contact have multiple friction: due to the differential slip with lateral loading and in case of comparable prestressing without the load, the gothic raceway profile causes higher friction (depending on the raceway curvature and the load, up to five times the friction coefficient). This high friction leads correspondingly to greater heat.

Seals

Seals are use to prevent dirt, chips and coolants, etc. from working their way into the inside of he Ball Runner Block, thereby preventing reductions to its service life. For further information, see "Selection criteria/seals".

Standard seal (SS)

Universal seals are fitted as standard in Rexroth Ball Runner Blocks. They have a uniform sealing effect for Ball Guide Rails with and without cover strips. Low friction and a good sealing effect have both been taken into account in the design. For applications where effective sealing is required.

Low-friction seal (LS)

For special requirements with regard to ease of movement.

Double-lip seal (DS)

For increased exposure to media

Front seal

For applications in environments with fine dirt or metal particles, as well as coolants or cutting fluids.

Interchangeable during servicing.

Front seals are available as accessories for mounting by the customer.

FKM seal

For applications in extreme environments with fine dirt or metal particles, as well as heavy use of coolants or cutting fluids.

Interchangeable during servicing.

FKM front seals are available as accessories for mounting by the customer.

Cover plate wiper

For use in environments with coarse dirt or chips.

Cover plate wiper are available as accessories for mounting by the customer.

Ceramic balls

Enable maximum speeds

Area of application: For maximum speeds
Maximum system rigidity due to preloaded O-arrangement
Electrically insulating due to use of ceramic balls
High speed thanks to the low weight of ceramic balls
Attachments on the ball runner block can be mounted from above
Lube fittings with metal threads on all sides
Can be used on all SNS/SNO ball guide rails
The same high load ratings in all four main directions of loading
Long-term lubrication is possible over several years
Minimum quantity lubrication with integrated reservoir for oil lubrication
Smooth, quiet running thanks to optimally designed ball return and guideway
End-face fastening thread for all attachments
Ball runner block pre-lubricated at the factory
Available in eight common sizes

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Height of runner block	35.35
Footnote permissible ambient temperature (min ... max)	100 °C admissible for short time. For operation at negative temperatures, please consult us.
Footnote dynamic load capacity C	Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Size E2 (profiled rail systems)	40
Footnote friction coefficient μ	Without friction of seal
Permissible ambient temperature	-10 °C ... +80 °C
Format	SNS - slimline, normal, standard height
Self-aligning for compensation of misalignments	Without self-alignment
Ball chain	Without ball chain (standard)
Friction coefficient μ	0,002 ... 0,003
Size B tolerance (profiled rail systems)	+0.5
Pitch T guide rail	80
Height of runner block with guide rail	42
Static load rating C0	33500
Dynamic torsional moment load capacity Mt	440
Size H2 with cover strip (profiled rail systems)	28.35
Preload class	C2 – Average preload
Size B1 (profiled rail systems)	67.4
Size H (profiled rail system)	42
Friction coefficient μ min.	0.002
Accuracy class	P - Precise
Size K4 (profiled rail systems)	6.05
Size B with tolerance (profiled rail systems)	97,7 mm +0,5
Size K3 (profiled rail systems)	6.05
Size A1 (profiled rail systems)	30
Static torsional moment load capacity Mt0	580
Runner block or guide rail	Runner block
Width of runner block	60
Size E8 (profiled rail systems)	48.4
Length of runner block	97.7
Linear guide type	Ball rail system
Dynamic load capacity C	25500
Static longitudinal moment load capacity ML0	400
Size E9 (profiled rail systems)	14.6
Size E1 (profiled rail systems)	40
Material (profiled rail systems)	Carbon steel
Size N6 with tolerance (profiled rail systems)	17 mm ±0,5
Size S5 (profiled rail system)	9
Max. acceleration amax	500
Size A (profiled rail systems)	60
Size N6 tolerance (profiled rail systems)	±0.5
Size A3 (profiled rail systems)	16
Preload force	1720
Size A2 (profiled rail systems)	28
Maximum permissible linear speed vmax	10
Lubrication	With initial lubrication and preservation
Size N3 (profiled rail systems)	12
Size N6 (profiled rail systems)	17
Friction coefficient μ max.	0.003
Size B (profiled rail systems)	97.7
Size H2 with cover strip (profiled rail systems)	28.55
Seal	SS – Standard seal
Size K2 (profiled rail systems)	21.7
Size V1	7
Productgroup ID	17
Size K1 (profiled rail systems)	20
Dynamic longitudinal moment load capacity ML footnote	Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Permissible ambient temperature (max)	+80
Size S9 thread diameter x lead with tolerance (profiled rail systems)	M3x5
Dynamic longitudinal moment load capacity ML	310
Size S2 (profiled rail systems)	M8
Permissible ambient temperature (min)	-10
Note: Max. acceleration amax	If F_comb◡> 2.8 • F_pr : a_max = 50 m/s²
Size T1 min (profiled rail systems)	16
Dynamic torsional moment load capacity Mt footnote	Determination of the dynamic load capacities and load moments is based on a 100 000 m travel as per DIN ISO 14728-1. Often only 50 000 m are actually stipulated. For comparison: Multiply values C, Mt and ML from the table by 1.26.
Size S9 thread diameter x lead with (profiled rail systems)	M3x5
Internal product information	For LS – low-friction seal with external longitudinal seal
Weight	0.850
Nominal size	30
Size H1 (profiled rail systems)	35.35

Load capacities and load moments

Size		15	20	25	30	35
C	N	6880	16300	20000	25500	36200
C0	N	8860	20800	25100	33500	56500
Mt	Nm	66	210	280	440	780
Mt0	Nm	85	270	360	580	1210
ML	Nm	47	140	200	310	510
ML0	Nm	61	180	250	400	790

	The calculation of the dynamic load ratings and load moments is based on a stroke length of 100,000 m as per DIN ISO 14728-1. However, often only 50,000 m is actually stipulated. For comparison: Multiply the values C,Mt and ML from the table by 1.26.

General technical data

Size		15	20	25	30	35
amax 1)	m/s²	500
vmax	m/s	10
m	kg	0.15	0.35	0.45	0.8	1.15
μ 2)		0.002 ... 0.003
Operating conditions
Size		15	20	25	30	35
Permissible ambient temperature (min ... max) 3)		-10 °C ... +80 °C

1)	If Fcomb > 2.8 • Fpr : amax = 50 m/s2
2)	Without friction of seal
3)	Up to 100 °C permissible for short periods. For operation at negative temperatures, please consult us.

Legend

Symbol	Description	Unit
amax	Maximum acceleration travel	m/s2
C	Dynamic load capacity	N
C0	Static load capacity	N
m	Mass	kg
ML	Dynamic longitudinal moment load capacity	Nm
ML0	Static longitudinal moment load capacity	Nm
Mt	Dynamic torsional moment load capacity	Nm
Mt0	Static torsional moment laod capacity	Nm
vmax	Maximum permissible speed	m/s
μ	Friction coefficient

General Notes

The general technical data and calculations apply to all Ball Rail Systems i.e. to all Ball Runner Blocks and Ball Guide Rails. Specific technical data relating to the individual Ball Runner Blocks and Ball Guide Rails is listed separately.

Preload classes

To cover the widest possible range of applications, Rexroth Ball Runner Blocks are available in different preload classes.

The following preload classes are available:

Ball Runner Block without preload (preload class C0) Ball Runner Blocks with moderate preload (preload class C1) Ball Runner Blocks with average preload (preload class C2) Ball Runner Blocks with high preload (preload class C3)

To prevent reductions to the service life, the preload should not exceed 1/3 of the load on bearing F.

In general, the rigidity of the Ball Runner Block rises with increasing preload. If vibrations occur, select a correspondingly high preload (≥ preload class C2).

Guide systems with parallel rails

When choosing the preload class, pay attention to permissible parallelism offset of rails too ("Accuracy class selection criterion").

When specifying ball rail systems of accuracy class N, we recommend preload class C0 or C1 to avoid distortive stress due to the tolerances.

Accuracy classes

System preload

a)	For O-ring
	Size 15: Ø 4 · 1.0 (mm)
	Sizes 20 – 35: Ø 5 · 1.0 (mm)
	Open lube port if necessary (see general technical notes and information in the "Maintenance" section).
b)	Lube nipple, sizes 15 – 20:
	Funnel-type lube nipple DIN 3405-A M3x5, B2 = 1.6 mm
	When using different lube nipples, pay attention to the screw-in depth of 5 mm!
	Lube nipple, sizes 25 – 35:
	Hydraulic-type lube nipple DIN 71412-A M6x8, B2 = 9.5 mm
	When using different lube nipples, pay attention to the screw-in depth of 8 mm!
	The lube nipple is included in the scope of delivery (not installed).
	Connection is possible on all sides.

Dimensions

Size		15	20	25	30	35
A	mm	34	44	48	60	70
A1	mm	17	22	24	30	35
A2	mm	15	20	23	28	34
A3	mm	9.5	12	12.5	16	18
B		58.2 mm +0.5	75 mm +0.5	86.2 mm +0.5	97.7 mm +0.5	110.5 mm +0.5
B1	mm	39.2	49.6	57.8	67.4	77
E1	mm	26	32	35	40	50
E2	mm	26	36	35	40	50
E8	mm	24.55	32.5	38.3	48.4	58
E9	mm	6.7	7.3	11.5	14.6	17.35
H	mm	24	30	36	42	48
H1	mm	19.9	25.35	29.9	35.35	40.4
Dimension H2 with cover strip	mm	16.3	20.75	24.45	28.55	32.15
Dimension H2 without cover strip	mm	16.2	20.55	24.25	28.35	31.85
K1	mm	10	13.8	17.45	20	20.5
K2	mm	11.6	13.8	18.6	21.7	22
K3	mm	3.2	3.35	5.5	6.05	6.9
K4	mm	3.2	3.35	5.5	6.05	6.9
N3	mm	6	7.5	9	12	13
N6		10.3 mm ±0.5	13.2 mm ±0.5	15.2 mm ±0.5	17 mm ±0.5	20.5 mm ±0.5
S2		M4	M5	M6	M8
ØS5	mm	4.5	6	7	9
S9		M2.5x3.5	M3x5
T	mm	60			80
V1	mm	5	6	7.5	7	8

Load on bearing for calculating the service life

Loads and service life

General mounting instructions

Notes on lubrication

Scraper plates for Ball Rail Systems

R16.0 .10 ..

Scraper plates for Ball Rail Systems

R16.0 .10 ..

Material: Corrosion-resistant steel as per DIN EN 10088 Design: bright Precision design with a maximum gap dimension of 0.1 to 0.3 mm

CAD data

Instructions

Service

Front seals for Ball Rail Systems

R1619 .2. .0

Front seals for Ball Rail Systems

R1619 .2. .0

Material: Corrosion-resistant steel as per DIN EN 10088 with plastic seal Design: bright Two sections

CAD data

Instructions

Service

FKM seals, one piece for Rexroth Ball Rail Systems

R1619 620 30

FKM seals, one piece for Rexroth Ball Rail Systems

R1619 620 30

Material: Corrosion-resistant steel as per DIN EN 10088 and FKM seal

CAD data

Instructions

Service

FKM seals, two piece for Rexroth Ball Rail Systems

R1619 .20 30

FKM seals, two piece for Rexroth Ball Rail Systems

R1619 .20 30

Material: Corrosion-resistant steel as per DIN EN 10088 with FKM seal See Selection criteria/Seals for the area of application and resistance Simple assembly/removal on fixed ball guide rail

CAD data

Instructions

Service