BOSCH REXROTH
R182122116

$707.40 USD

BOSCH REXROTH
Material:R182122116
Model:RWA-025-SNH-C2-S-2

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 R.RUNNER BLOCK CS RWA-025-SNH-C2-S-2 (R182122116) is a high-precision roller runner block designed for linear motion applications requiring super precision and medium preload. This model, part of the R.RUNNER BLOCK series, is characterized by its slimline width, normal length, and high height format SNH. The runner block body is constructed from unalloyed steel CS, ensuring durability and reliable performance. The product features a preload class C which provides an average preload to the system and an accuracy class SP for super precision movement. It is designed without a roller chain, initial lubrication, or attachment elements on either front reference edge. The absence of a lube connection attached signifies that users will need to provide external lubrication. This model has an overall length that allows for compatibility with various guide rails within the same accuracy range. Its interchangeability feature means it can be combined with different guide rails seamlessly. The dynamic load capacity C and static load rating C0 are based on DIN ISO standards, ensuring reliability in load-bearing applications. With a permissible ambient temperature range from minimum to maximum degrees Celsius for short periods of time, this runner block can operate within various environmental conditions. It also boasts self-aligning capabilities to compensate for any misalignments during installation or operation. The Bosch Rexroth R.RUNNER BLOCK CS RWA-025-SNH-C2-S-2 (R182122116) is suitable for oil and grease lubrication from above and comes preserved but without initial lubrication. Its design allows for potential speeds up to 5 meters per second; however, such speeds would limit service life due to increased stress on plastic parts. Overall, this product offers a combination of high precision and versatility suitable for various industrial linear motion applications where accuracy and reliability are paramount.

Roller runner block, SNH, size 25, steel CS, accuracy super precision, average preload

The roller runner block is highly precise and characterized by the following product features:
Size 25
Format SNH: Width = slimline, length = normal, height = high
Runner block body made of unalloyed steel CS
Preload class C2: Medium preload
Accuracy class SP: Super precision
Without roller chain
Preserved
Without initial lubrication
Without attachment element, left (front reference edge)
Without attachment element, right (front reference edge)
No lube connection attached.
Runner block body in standard version
Overall length of the runner block = 97.0 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 0.6 kg

Roller runner blocks are suitable for all typical applications as well as for special installation, environmental and conditions of use.

Roller Runner Blocks for oil and grease lubrication from above

Product description high-precision design

Selection of a linear guide acc. to DIN 637

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Size diameter S5 (profiled rail systems)	7
Height of runner block	34
Footnote friction force FR	Guideline value for frictional drags of the complete, sealed and lubricated roller runner block.
Product information	Oil and grease lubrication from above
Footnote permissible ambient temperature (min ... max)	100 °C admissible for short time. For operation at lower minus 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 1.23.
Size E2 (profiled rail systems)	35
Footnote friction coefficient μ	Without friction of seal
Permissible ambient temperature	-10 °C ... +80 °C
Size N5 (profiled rail systems)	9.5
Format	SNH - slimline, normal, high
Self-aligning for compensation of misalignments	Without self-alignment
Ball chain	Without roller chain
Friction coefficient μ	0,0004 ... 0,001
Height of runner block with guide rail	40
Static load rating C0	53200
Dynamic torsional moment load capacity Mt	348
Size H2 with cover strip (profiled rail systems)	23.4
Size B2 (profiled rail systems)	93
Note: Maximum permissible speed vmax	Possible speeds of up to 4 m/s. Service life is limited by heightened stress to plastic parts.
Preload class	C2 – Average preload
Friction force	30
Size B1	63.5
Size H (profiled rail system)	40
Friction coefficient μ min.	0.0004
Accuracy class	SP - Super precise
Size A1 (profiled rail systems)	24
Size B3	97
Static torsional moment load capacity Mt0	690
Runner block or guide rail	Runner block
Width of runner block	48
Size E8 (profiled rail systems)	33.4
Length of runner block	91
Linear guide type	Roller rail system
Dynamic load capacity C	26900
Static longitudinal moment load capacity ML0	520
Size E9 (profiled rail systems)	12.4
Size E1 (profiled rail systems)	35
Material (profiled rail systems)	Carbon steel
Size N6 with tolerance (profiled rail systems)	14,3 mm ±0,5
Max. acceleration amax	150
Size A (profiled rail systems)	48
Size N6 tolerance (profiled rail systems)	±0.5
Size A3 (profiled rail systems)	12.5
Size A2 (profiled rail systems)	23
Maximum permissible linear speed vmax	3
Lubrication	With preservation and without initial lubrication
Size N3 (profiled rail systems)	9
Size N6 (profiled rail systems)	14.3
Friction coefficient μ max.	0.001
Size B (profiled rail systems)	91
Size H2 with cover strip (profiled rail systems)	23.6
Seal	SS – standard seal
Size V1	7.5
Productgroup ID	17
Size K1 (profiled rail systems)	19.1
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 1.23.
Permissible ambient temperature (max)	+80
Dynamic longitudinal moment load capacity ML	260
Size S2 (profiled rail systems)	M6
Size S9 thread diameter (profiled rail systems)	M3
Permissible ambient temperature (min)	-10
Note: Max. acceleration amax	Requirement: There must be preload, even during operation under load.
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 1.23.
Size T2	30
Weight	0.6
Nominal size	25
Version	Roller rail systems
Size H1 (profiled rail systems)	34

Load capacities and load moments

Size		25
C	N	26900
C0	N	53200
Mt	Nm	348
Mt0	Nm	690
ML	Nm	260
ML0	Nm	520

	Determination of the dynamic load ratings and load moments is based on a 100,000 m stroke in accordance with DIN ISO 14728-1. Often only 50,000 m are actually stipulated. For comparison: Multiply values C, Mt, and ML from the table by 1.23.

General technical data

Size		25
amax 1)	m/s²	150
vmax 2)	m/s	3
m	kg	0.6
FR 3)	N	30
μ 4)		0.0004 ... 0.001
Material		CS
Operating conditions
Size		25
Permissible ambient temperature (min ... max) 5)		-10 °C ... +80 °C

1)	Prerequisite: There must be preload, even during operation under load.
2)	Speeds of up to 4 m/s are possible. Service life is limited by wear of plastic parts.
3)	Guideline value for frictional drags of the complete, sealed and lubricated roller runner blocks.
4)	Without friction of seal
5)	Brief peaks up to 100 °C are permitted. For even lower sub-zero temperatures, please consult us.

Legend

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

General technical data and calculations

Accuracy classes

Definition of preload class

The preload class is the pre-tensioning force Fpr based on the dynamic load rating C of the particular roller runner block.

Selection of the preload class

Code	Application area
C1	Special version on request
C4
C5
C2	For precise guide systems with both high external loading and high demands on overall rigidity;also recommended for single rail systems.
	Above average moment loads can be absorbed without significant elastic deflection.
	Further improved overall rigidity with only medium moment loads.
C3	For highly rigid guide systems such as precision machine tools, etc.
	Above average loads and moments can be absorbed with the least possible elastic deflection.
	Roller runner blocks with preload C3 available in accuracy classes P, SP (GP) and UP only.

Recommended combination based on preload and accuracy class

Recommendation for preload C2: Accuracy classes H and P

Recommendation for preload C3: Accuracy classes P and SP (GP)

Combination of hard chrome plated roller runner blocks with hard chrome plated roller guide rails

Upon combination of hard chrome plated roller runner blocks with preload C2 or C3 and hard chrome plated roller guide rails, the preload increases by approx. half a preload class.

Preload force Fpr (N)

Roller Runner Blocks			Size	25	35	45	55	65	100	125	55/85	65/100
	Type	Design type	Preload class	Preload force Fpr (N)
Roller runner block, steel1) Roller runner block, Resist CR2)	R1851 R1822 R1821 R1861	FNS SNS SNH	C1	830	1680	2930	3860	6520	‒	‒	‒	‒
			C2	2240	4510	7890	10400	17600	36900	60600	‒	‒
			C3	3640	7320	12800	16800	28500	59900	98400	‒	‒
			C4	4770	9610	16800	22100	37400	‒	‒	‒	‒
			C5	5610	11300	19700	26000	43900	‒	‒	‒	‒
	R1853 R1823 R1824 R1863	FLS SLS SLH	C1	1010	2060	3640	4790	8140	‒	‒	‒	‒
			C2	2720	5540	9790	12900	21900	50600	81600	‒	‒
			C3	4420	8990	15900	20900	35500	82200	132600	‒	‒
			C4	5800	11800	20800	27400	46600	‒	‒	‒	‒
			C5	6810	13900	24500	32200	54700	‒	‒	‒	‒
	R1854	FXS	C2	‒	‒	‒	‒	29300	‒	‒	‒	‒
	R1854	FXS	C3	‒	‒	‒	‒	47700	‒	‒	‒	‒
Wide roller runner block, steel1) Wide roller runner block, Resist CR2)	R1872	BLS	C2	‒	‒	‒	‒	‒	‒	‒	13200	21200
	R1872	BLS	C3	‒	‒	‒	‒	‒	‒	‒	21500	34500

1)	All steel parts made of carbon steel
2)	Steel roller runner block body with corrosion-resistant coating, matt silver finish, hard chrome-plated

Rigidity of the Roller Rail System at preload C2

Standard Roller Runner Block SNH R1821

Roller Runner Block mounted using 6 screws of strength class 12.9

Preload class

C2 = preload 8% C

Down load

technical illustration-R182122116-Roller runner block, SNH, size 25, steel CS, accuracy super precision, average preload

	δel. = elastic deformation (μm)
	F = load (N)

lift-off load

	δel. = elastic deformation (μm)
	F = load (N)

side load

	δel. = elastic deformation (μm)
	F = load (N)

Rigidity of the Roller Rail System at preload C3

Standard Roller Runner Block SNH R1821

Roller Runner Block mounted using 6 screws of strength class 12.9

Preload class

C3 = preload 13% C

Down load

	δel. = elastic deformation (μm)
	F = load (N)

lift-off load

	δel. = elastic deformation (μm)
	F = load (N)

side load

	δel. = elastic deformation (μm)
	F = load (N)

a)	For O-ring: Size 25: Ø 5 · 1.5 (mm). Open the lube port if required. Please request instructions. For new designs, use the runner blocks for lubrication from above.
b)	Recommended position for pin holes (see general technical notes and information in the "Maintenance" section). Pre-drilled holes may be present at this position for manufacturing reasons. They are suitable for drilling out.
c)	Lube nipple, thread M6 – 8 deep: Connection is only possible on end-face. Dimensions differ among different connection pieces. See "Accessories" for more information about lube fittings.
d)	For guide rails of accuracy class H, this base area may be without a slot for manufacturing reasons.

Dimensions

Size		25
A	mm	48
A1	mm	24
A2	mm	23
A3	mm	12.5
B	mm	91
B1	mm	63.5
B2	mm	93
B3	mm	97
d8	mm	6
d8.2	mm	5
E1	mm	35
E2	mm	35
E8	mm	33.4
E8.2	mm	40.22
E9	mm	12.4
E9.2	mm	25.4
H	mm	40
H1	mm	34
Dimension H2 with cover strip	mm	23.6
Dimension H2 without cover strip	mm	23.4
K1	mm	19.1
N3	mm	9
N5	mm	9.5
N6		14.3 mm ±0.5
S2		M6
ØS5	mm	7
S9 1)		M3 ‒ 5 mm deep
T2 2)	mm	30
V1	mm	7.5

1)	Thread for adjoining parts
2)	Dimension T2 = hole spacing in the roller guide rail

Mounting instructions Roller Rail Systems generation 1

Lubrication Roller Runner Blocks generation 1

Scraper plates for Roller Rail Systems

R1820.10.0

Scraper plates for Roller Rail Systems

R1820.10.0

For mounting on Roller Runner Blocks for all roller guide rails with cover strip Scraper plates; material: Rust-free spring steel in as per DIN EN 10088; version: blank Spacer plate; material: Aluminum

CAD data

Service

Front seals for Roller Rail Systems

R1810 .1. 00

Front seals for Roller Rail Systems

R1810 .1. 00

Already integrated in RSHP (replacement only for first generation roller runner blocks) Material: Corrosion-resistant spring steel as per DIN EN 10088 with plastic seal Design: bright

CAD data

Instructions

Service

End cap set with front seals for Roller Rail Systems

R1810 .9. ..

End cap set with front seals for Roller Rail Systems

R1810 .9. ..

For replacement when servicing roller runner blocks

Instructions

Service

Viton seal for Roller Guide Rails

R1810.00..

Viton seal for Roller Guide Rails

R1810.00..

For mounting on Roller Runner Blocks for all Roller Guide Rails Material: Stainless steel plus seal made of Viton Easy mounting and removal even when Guide Rail is screwed down (note the mounting instructions). Two sections

CAD data

Service

NBR seal for Roller Rail Systems

R181060090

NBR seal for Roller Rail Systems

R181060090

For mounting on Roller Runner Blocks for all Roller Guide Rails Material: Stainless steel plus FKM seal Easy mounting and removal even when Guide Rail is screwed down (note the mounting instructions). Two sections

Service

FKM seal and scraper plate set for Roller Rail System

R181060570

FKM seal and scraper plate set for Roller Rail System

R181060570

For mounting on Roller Runner Blocks for Roller Guide Rails with cover strip

Service

Front lube units

R1810 .25 00

Front lube units

R1810 .25 00

Front lube units suitable for RSHP Roller Runner Blocks and generation 1 Roller Runner Blocks For travel up to 5,000 km without relubrication Roller runner block only needs initial lubrication with grease Front lube units on both sides of the roller runner block Low lubricant loss

CAD data

Mounting of Front Lubrication Unit (Video)

Service