Артикул: RX8739

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Double bearing runner blocks R1904

Name: Double bearing runner blocks R1904
Brand: Bosch Rexroth
SKU: RX8739

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Description

Distance of the runner blocks on the table construction is freely selectable
Zero-clearance adjustment using socket hex screws on the rear side of the runner blocks.
Tough all-round sealing with excellent wiping action. Grease lubrication recommended.
On two half-rails

Product description

Rexroth cam roller guides were specially developed for handling and automation technology.

Product overview

Technical data

Size		32	52	52-h	52-sh
Fy max	N	1000	2500	4500	8000
F0y max	N	1000	2500	4500	8000
Fz max	N	850	1500	2400	4800
F0z max	N	1400	2500	4000	7900
Mx max	Nm	0,42 · a	0,75· a	1,2 · a	2,4 · a
M0x max	Nm	0,7 · a	1,2 · a	2 · a	3,9 · a
My max	Nm	21	49	91	194
M0y max	Nm	35	83	152	320
Mz max	Nm	25	83	171	324
M0z max	Nm	25	83	171	324
vmax 1)	m/s	10
amax	m/s²	50
Temperature stability		-20 °C ... +80 °C
Weight	kg	0.2	0.53	0.82	1.01

1)	For average load.
	Values Fmax and Mmax apply to two double bearing runner blocks.
	Attention: Not to be used for calculating the service life!
	For service life calculations use the load ratings and moments given in the tables.

Load ratings and moments for calculating the service life

Size		32	52	52-h	52-sh
Cy	N	7335	17150	27900	31000
C0y	N	4560	10200	15400	18200
Cz	N	4300	10050	16775	18400
C0z	N	2200	4900	7630	8750
MX	Nm	2,1 · a	5,0 · a	8,3 · a	9,3 · a
M0x	Nm	1,1 · a	2,4 · a	3,8 · a	4,4 · a
My	Nm	105	330	631	740
M0y	Nm	55	158	289	350
Mz	Nm	180	561	1056	1260
M0z	Nm	110	337	578	740

	Load ratings and moments for calculating the service life of two double bearings.
	Observe maximum permissible loads due to forces and moments as shown in the "Technical data” table!

Legend

Symbol	Description	Unit	Picture
Cy	Dynamic load capacity in y-direction	N
C0y	Static load capacity in y-direction	N
Cz	Dynamic load capacity in z-direction	N
C0z	Static load capacity in z-direction	N
Fy max	Maximum dynamic load in y-direction	N
F0y max	Maximum static load due to a resulting force in the y-direction	N
Fz max	Maximum dynamic load in z-direction	N
F0z max	Maximum static load due to a resulting force in the z-direction	N
Mx max	Maximum permissible dynamic torsional moment about the x-axis	Nm
M0x max	Maximum permissible static torsional moment about the x-axis	Nm
My max	Maximum permissible dynamic torsional moment about the y-axis	Nm
M0y max	Maximum permissible static torsional moment about the y-axis	Nm
Mz max	Maximum permissible dynamic torsional moment about the z-axis	Nm
M0z max	Maximum permissible static torsional moment about the z-axis	Nm
vmax	Maximum permissible speed	m/s
amax	Maximum acceleration travel	m/s2
MX	Dynamic torsional moment about the x-axis	Nm
M0x	Static torsional moment about the x-axis	Nm
My	Dynamic torsional moment about the y-axis	Nm
M0y	Static torsional moment about the y-axis	Nm
Mz	Dynamic torsional moment about the z-axis	Nm
M0z	Static torsional moment about the z-axis	Nm

Dimensions

1)	Funnel-type lube nipple ø 3 mm

Dimensions

Size		32	52	52-h	52-sh
A	mm	31	44.5	52	57
A1	mm	43	65	72.5	77.5
A2	mm	2
B	mm	129	159	184.5	194.5
E1	mm	48	60.5	71	76
E2	mm	27	42	45	47.5
H	mm	26	40	42
H1	mm	20.5	29.5	33.5
H2	mm	11	14.9	16.9
H3	mm	2.5		3
O1 1)	mm	M8	M10	M12
S1	mm	18	22	26

1)	Fastening screws are not included. Screws according to ISO 4014 8.8 require a washer according to ISO 7089.

Mounting

Advantage

The adjusting screws allow a zero-backlash run. By means of the adjusting screws, the carriage can be slightly rotated around the z-axis, or displaced in the y-direction, and therefore optimally aligned.

Notes for mounting

Maintenance

Lubrication

Ordering codes

Material numbers

Size	Part number	CAD data	Buy
32	R190413210
52	R190415210
52-h	R190425210
52-sh	R190435210

Downloads

	Profiled rail systems Manual \| R320103885_EN \| 2016-09-01 \| English \| PDF \| 11.5MB Product Groups: Linear guides
	Cam Roller Guides Catalog \| R999000486 \| 2018-12-01 \| English \| PDF \| 3.3MB Product Groups: Cam Roller Guides

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