BOSCH REXROTH
R186132310

$10,213.08 USD

BOSCH REXROTH
Material:R186132310
Model:RWA-125-FNS-C2-H-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-125-FNS-C2-H-2 (R186132310) is a high-precision roller runner block designed for linear motion applications requiring extreme load capacity and rigidity. This runner block features a size 125, FNS format which denotes a flanged width, normal length, and standard height. It is constructed from unalloyed steel CS, ensuring durability and strength. The preload class C indicates a medium preload while the accuracy class H signifies high precision. The RWA-125-FNS-C2-H-2 does not come with a roller chain and requires no initial lubrication. It is preserved for longevity and does not include attachment elements on either the left or right front reference edges. The lube connection is straight and loosely attached. With an overall length specified by the manufacturer, this runner block offers interchangeability with guide rails of varying accuracies. This heavy-duty roller runner block excels in heavy machine construction environments due to its exceptional load capacity. It provides maximum rigidity in all load directions and features additional mounting screw holes at the center for improved stability under liftoff and side loading conditions. High torque load capacity is another key feature of this model. The uniform Roller Guide Rails across all variants ensure limitless interchangeability and numerous combination options. Attachments can be mounted both above and below the runner block, enhancing versatility. Innovative channel design allows for minimal lubrication quantities while ensuring smooth operation. The optimized design of return pathways and guideways delivers quiet running with minimal elastic deflection variation due to its optimized entry zone geometry and the high number of rollers employed. Aluminum end caps are available for sizes 25+ or plastic for smaller sizes, while integrated front seals come standard to improve sealing across all running tracks. This product's capabilities are further underscored by its compatibility with various profiled rail systems (sizes A, B, E, H, K, N, S, T), each offering specific advantages in terms of static or dynamic load capacities, torsional moment capacities, friction coefficients, permissible ambient temperatures, acceleration limits, preload forces, linear speeds, sealing options (like Doublelip seal DS), material compositions (carbon steel), tolerance profiles as well as weight considerations for comprehensive application suitability according to DIN ISO standards.

Roller runner block, FNS, size 125, steel CS, accuracy high, average preload

The roller runner block is highly precise and characterized by the following product features:
Size 125
Format FNS: Width = flange, length = normal, height = standard
Runner block body made of unalloyed steel CS
Preload class C2: Medium preload
Accuracy class H: High
Without roller chain
Preserved
Without initial lubrication
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 = 386.5 mm
Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Unpacked Weight: 62.1 kg

Heavy-duty roller runner blocks are particularly suitable for heavy machine construction with very high carrying capacity- and rigidity requirements.

technical illustration-R186132310-Roller runner block, FNS, size 125, steel CS, accuracy high, average preload

Product description high-precision design

Selection of a linear guide acc. to DIN 637

Heavy-Duty Roller Runner Block for heavy machine construction with extremely high load capacity
Maximum rigidity in all load directions
Improved rigidity under lift-off and side loading conditions due to three additional mounting screw holes at the center of the Roller Runner Block
High torque load capacity
Limitless interchangeability and any number of combination options thanks to uniform Roller Guide Rails in different versions across all Roller Runner Block variants
Attachments on the Roller Runner Block can be mounted from above and below
Minimum lubrication quantities thanks to innovative channel design
Smooth, quiet running thanks to optimally designed return and guideways of the rollers
Minimal variation in elastic deflection thanks to optimized entry-zone geometry and high number of rollers
Aluminum end caps (size 125) and/or plastic (size 100)
Integrated front seals are included as standard for improved sealing of all running tracks and to protect the plastic parts

Data Sheet	Download Data Sheet
3D CAD	Download 3D CAD
3D CAD	Download 3D CAD
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Size diameter S5 (profiled rail systems)	33
Height of runner block	135.5
Footnote friction force FR	Guideline value for frictional drags of the complete, sealed and lubricated roller runner blocks. The friction is approx. 50% higher immediately after lubrication.
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)	205
Footnote friction coefficient μ	Without friction of seal
Permissible ambient temperature	-10 °C ... +80 °C
Size N5 (profiled rail systems)	29
Format	FNS - flanged, normal, standard height
Self-aligning for compensation of misalignments	Without self-alignment
Ball chain	Without roller chain
Friction coefficient μ	0,0004 ... 0,001
Pitch T guide rail	120
Height of runner block with guide rail	160
Static load rating C0	1324000
Dynamic torsional moment load capacity Mt	54520
Size B2 (profiled rail systems)	377
Preload class	C2 – Average preload
Friction force	600
Size B1 (profiled rail systems)	255
Size H (profiled rail system)	160
Friction coefficient μ min.	0.0004
Accuracy class	H - Highly accurate
Size A1 (profiled rail systems)	160
Size B3	386.5
Static torsional moment load capacity Mt0	95330
Runner block or guide rail	Runner block
Width of runner block	320
Size E8 (profiled rail systems)	80
Length of runner block	371
Linear guide type	Roller rail system
Dynamic load capacity C	757200
Static longitudinal moment load capacity ML0	51860
Size E9 (profiled rail systems)	12
Size N1 (profiled rail systems)	45
Size E1 (profiled rail systems)	270
Material (profiled rail systems)	Carbon steel
Size N6 with tolerance (profiled rail systems)	74,5 mm ±0,5
Max. acceleration amax	150
Size A (profiled rail systems)	320
Size N6 tolerance (profiled rail systems)	±0.5
Size A3 (profiled rail systems)	97.5
Preload force	60600
Size A2 (profiled rail systems)	125
Maximum permissible linear speed vmax	2
Lubrication	With preservation and without initial lubrication
Size N7 (profiled rail systems)	92
Size N2 (profiled rail systems)	29
Size N6 (profiled rail systems)	74.5
Friction coefficient μ max.	0.001
Size B (profiled rail systems)	371
Size H2 with cover strip (profiled rail systems)	115.3
Seal	SS – Standard seal
Size K2 (profiled rail systems)	50
Size V1	25
Productgroup ID	17
Size K1 (profiled rail systems)	50
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
Size B4	130
Footnote of size T (profiled rail systems)	T = Rail separation of the Roller Guide Rail
Dynamic longitudinal moment load capacity ML	29660
Size S2 (profiled rail systems)	M27
Permissible ambient temperature (min)	-10
Note: Max. acceleration amax	Requirement: There must be preload, even during operation under load.
Size T1 min (profiled rail systems)	40
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.
Weight	62.1
Nominal size	125
Size H1 (profiled rail systems)	135.5

Load capacities and load moments

Size		100	125
C	N	461000	757200
C0	N	811700	1324000
Mt	Nm	26600	54520
Mt0	Nm	47500	95330
ML	Nm	13550	29660
ML0	Nm	23850	51860

	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		100	125
amax 1)	m/s²	150
vmax	m/s	2
m	kg	32	62.1
FR 2)	N	400	600
μ 3)		0.0004 ... 0.001
Material		CS
Operating conditions
Size		100	125
Permissible ambient temperature (min ... max) 4)		-10 °C ... +80 °C

1)	Prerequisite: There must be preload, even during operation under load.
2)	Guideline value for frictional drags of the complete, sealed and lubricated roller runner blocks. The friction is approx. 50% higher immediately after lubrication.
3)	Without friction of seal
4)	Brief peaks up to 100 °C are permitted. For even lower sub-zero temperatures, please consult us.

Legend

Symbol	Description	Unit
amax	Maximum acceleration travel	m/s2
C	Dynamic load capacity	N
C0	Static load capacity	N
Fpr	Preload force	N
FR	Friction force	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 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

Down load

1)	δel. = elastic deformation μm
2)	F = load N

lift-off load

1)	δel. = elastic deformation μm
2)	F = load N

side load

1)	δel. = elastic deformation μm
2)	F = load N

Rigidity of roller rail system for preload C3

Heavy-duty roller runner block FNS R1861

Roller runner block mounted with 9 screws:

Externally with 6 screws of strength class 12.9

In the middle with 3 screws of strength class 8.8

Preload class

C3 = Preload (in accordance with table for pre-tensioning force Fpr in section "Technical information")

a)	For O-ring Ø 15 • 2.5 (mm)
	For lube port from above:
	- size 100: Open lube port (see section entitled "Lubrication").
	- size 125: Remove screw plug.
b)	Lube nipple, thread M8x1:
	Connection possible on all sides.
	All lube ports of size 125 in metal.
c)	Side lube ports on two sides, in end caps only with size 100.

Note

For short stroke (< 2xB1), use additional lube ports (size 125: B4 and N7). All lube ports with thread M8x1 (size 125 in metal).

Dimensions

Size		100	125
A	mm	250	320
A1	mm	125	160
A2	mm	100	125
A3	mm	75	97.5
B	mm	296.5	371
B1	mm	204	255
B2	mm	301.5	377
B3	mm	309.5	386.5
B4	mm	-	130
E1	mm	200	270
E2	mm	150	205
E8	mm	64	80
E8.2	mm	130	205
E8.3	mm	162.6	205
E9	mm	9	12
E9.2	mm	29.4	40
E9.3	mm	70	92
H	mm	120	160
H1	mm	105	135.5
Dimension H2 with cover strip	mm	87.3	115.3
K1	mm	44	50
K2	mm	49.9	50
N1	mm	30	45
N2	mm	22	29
N5	mm	17.5	29
N6		55 mm ±0.5	74.5 mm ±0.5
N7	mm	-	92
ØS1	mm	17,5	25
S2		M20	M27
ØS5	mm	25	33
T2 1)	mm	105	120
V1	mm	20	25