Heavy Duty Roller Runner Blocks FNS, Resist CR R1861…6.

Артикул: RX8837

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Heavy Duty Roller Runner Blocks FNS, Resist CR R1861…6.

Name: Heavy Duty Roller Runner Blocks FNS, Resist CR R1861…6.
Brand: Bosch Rexroth
SKU: RX8837

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Description

Heavy-duty roller runner block for heavy machine construction with extremely high load capacity
Top 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 capacity
Limitless interchangeability and any number of combination options thanks to uniform roller guide rails in different versions across all roller runner block variants

Features

Attachments on the roller runner block can be mounted from above and below
Lube ports on all sides for maximum ease of maintenance
Minimum lubrication quantities thanks to innovative channel design
Smooth running thanks to optimized roller recirculation and guidance
Optimized entry-section geometry and high number of rollers per track minimizes variation in elastic deflection
Aluminum end caps (size 125) and/or plastic (size 100)
End seals integrated as standard for better sealing of all raceways and to protect plastic parts
Corrosion-resistant heavy-duty roller runner blocks and roller guide rails in Resist CR, matt silver finish, hard chrome-plated, available in accuracy class H (preloads C2 and C3).

Product description

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

Steel roller runner block with corrosion-resistant coating "Resist CR", matte silver finish, hard chrome plated

1)	Size 125
2)	Size 45

FNS R1861, size 100

Product description high-precision design

Selection of a linear guide acc. to DIN 637

Technical data

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		CR
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, SP, GP and UP

Combination of hard chrome plated Roller Runner Block 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	‒	‒	‒	‒

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

Diagrams/characteristic curves

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")

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

Dimensions

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
T 1)	mm	105	120
V1	mm	20	25

1)	Dimension T = Division of the Roller Guide Rail

Project planning information

Effect of "Resist CR" coating on tolerances and preload

Differing tolerances for "Resist CR” coating

For Roller Runner Blocks and Roller Guide Rails in Resist CR, hard chrome-plated, be aware of differing tolerances with dimensions H and A3 (see "Accuracy classes and their tolerances")!

Higher preload upon combination of hard chrome-plated Roller Runner Blocks and hard chrome-plated Roller Guide Rails

When hard chrome-plated Roller Runner Blocks are combined with hard chrome-plated Roller Guide Rails, this increases the preload by approx. half a preload class.

Mounting

load error

Maintenance

load error

Certification

load error

Safety Instructions

load error

Downloads

	Profiled rail systems Manual \| R320103885_EN \| 2016-09-01 \| English \| PDF \| 11.5MB Product Groups: Linear guides
	Catalog Roller Rail Systems Catalog \| R999000354 \| 2021-10-01 \| English \| PDF \| 23.5MB Product Groups: Roller Rail Systems only available as PDF file

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