yrt50P4 yrt bearing factoryCross Roller Bearing for the machines tools industry

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yrt50P4 yrt bearing factoryCross Roller Bearing for the machines tools industry
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Features
Specifications
Material: GCr15 Or GCr15SiMn
Accuracy: P4/P2
Application: Machine Tool Or Turntable
Customer: DMG,MAG,Famot,Haas,etc
Dimension: 50*126*30mm
Market: Germany,Italy,USA,Russia,Turket,etc
Samples: Available
Guarantee: 12months
High Light:

industrial turntable bearings

,

skf turntable bearings

Basic Infomation
Place of Origin: CHINA
Brand Name: MONTON
Certification: ISO9001
Model Number: YRT50
Payment & Shipping Terms
Packaging Details: Singlebox
Delivery Time: 7-35 days
Payment Terms: T/T
Supply Ability: 10000PCS/WEEK
Product Description

Axial / Radial Double Direction Rotary Table Slewing Ring Bearing

 

  bountary dirnensions  fixing hoks
  d D H H1 C d1 dn dm inner ring outer ring
bearing :mm d0 ds Ts   dL  
type   quantity mm quantity
YRT50 50 126 30 20 10 105 63 116 5.6 9 4.2 10 5.6 12
YRT80 80 146 35 23.35 12 130 92 138 5.6 10 4.2 10 4.6 12
YRT100 100 185 38 25 12 160 112 170 5.6 10 5.4 16 5.6 15
YRT120 120 210 40 26 12 184 135 195 7 11 6.2 22 7 21
YRT150 150 240 40 26 12 214 165 225 7 11 6.2 34 7 33
YRT180 180 280 43 29 15 244 194 260 7 11 6.2 46 7 45
YRT200 200 300 45 30 15 274 215 285 7 11 6.2 46 7 45
YRT260 260 385 55 36.5 18 345 280 365 9.3 15 8.2 34 9.3 33
YRT325 325 450 60 40 20 415 342 430 9.3 15 8.2 34 9.3 33
YRT395 395 525 65 42.5 20 486 415 505 9.3 15 8.2 46 9.3 45
YRT460 460 600 70 46 22 560 482 580 9.3 15 8.2 46 9.3 45
YRT580 580 750 90 60 30 700 610 720 11.4 18 11 46 11.4 42
YRT650 650 870 122 78 34 800 680 830 14 20 13 46 14 42
YRT850 850 1095 124 80.5 37 1018 890 1055 18.5 26 17 57 18.5 54
YRT950 950 1200 132 86 40 1130 990 1160 18.5 26 17 57 18.5 54
YRT1030 1030 1300 145 92.5 40 1215 1075 1255 18.5 26 17 66 18.5 66
YRT1200 1200 1490 164 108 52 1410 1240 1445 18.5 26 17 66 18.5 66

precision crossed roller bearing factory

 

We can supply the Rotary Table Bearing from YRT50 to YRT 1080 with P4 or P2 level.Our YRT bearings have been widely used on the machine tool industry.We have cooperated with world famous company like DMG,LCM,MKD,etc and our YRT bearings received a very good reputation for our perfect quality!We welcome all the world customers to send inquires to us and we are waiting for our cooperation with you!!!

 

Features:
YRT precision rotary table bearing is a kind of bearing fixed by a bidirectional thrust bearing and a centripetal-guided bearing. They can support radial loads, axial loads from both directions and tilting moments free from clearance and are particularly suitable for bearing arrangements with high requirements for running accuracy,like rotary tables, millings heads and reversible clamps.Due to the fixing holes in the bearing rings, the units are very easy to fit.
The bearings are radially and axially preloaded after fitting.

Sealing/Lubricant:
YRT bearings are supplied with seals. YRT bearings are greased by a lithium complex soap grease and can be lubricated via the outer ring and L-section ring.

Operating temperature:
YRT bearings are suitable for operating temperatures from 30℃ to 120℃

Design and safety guidelines:
Basic rating life:
Please contact us in relation to checking of the basic rating life .The speed ,load and operating duration must be given.

Static load safety factor:
02-1The static load safety factor S0 indicates the security against impermissible permanent deformations in the bearing. It is determined as follows:
Static load safety factor :Cor Coa N
Basic static load rating according to dimension tables: For Foa N
Maximum static load on the radial or axial bearing.
Caution! In machine tools and similar areas of application, S0 should be >4

Limiting speeds:
The bearings allow the limiting speeds given in the dimension tables. The operating temperatures occurring are heavily dependent on the environmental conditions. Calculation is possible by means of a thermal balance analysis based on frictional torque data.

Frictional torque:
The bearing frictional torque MRL is influenced primarily by the viscosity and quantity of the lubricant and the bearing preload.
The lubricant viscosity and quantity are dependent on the lubricant grade and operating temperature. The bearing preload is dependent on the mounting fits, the geometrical accuracy of the adjacent parts, the temperature difference between the inner and outer ring, the screw tightening torque and the mounting situation.

Starting torque:
For YRT bearing, it must be taken into consideration that the frictional torque can increase by a factor of between 2 and 2.5 with increasing speed.

Accuracy of adjacent construction:
The adjacent construction should be produced in accordance with Figure and the tolerances must be in accordance with the tables starting on page. Any deviations will influence the bearing frictional torque ,running accuracy and running characteristics.

02-2

Legend to Figure:
1.Support over whole bearing height. It must be ensured that the means of support has adequate rigidity.
2.A precise fit is only necessary if radial support due to the load or a precise bearing position is required.
3.Note the bearing diameter D1 according to the dimension tables. Ensure that there is sufficient distance between the rotating bearing rings and the adjacent construction.
Geometrical and positional accuracy of the adjacent construction:

nominal shaft diameter
d
mm
Deviation
d
Roundness
Parallelism
Perpendicularity
t2,t2,t8,
over incl. for tolerance h5
µm
µm
50 80 0 -13 3
80 120 0 -15 4
120 150 0 -18 5
150 180 0 -18 5
180 250 0 -20 7
250 315 0 -23 8
315 400 0 -25 9
400 500 0 -27 10
500 630 0 -28 11
630 800 0 -32 12
800 1000 0 -36 14

 

 
nominal shaft diameter
D
mm
Deviation
D
Roundness
Parallelism
Perpendicularity
t2,t2,t8,
over incl. for tolerance zone h5
µm
µm
120 150 +18 -7 5
150 180 +18 -7 5
180 250 +22 -7 7
250 315 +25 -7 8
315 400 +29 -7 9
400 500 +33 -7 10
500 630 +34 -7 11
630 800 +38 -8 12
800 1000 +44 -12 14
1000 1250 +52 -14 16

Mounting dimensions H1,H2

05

 

 

L-section ring without support ring:
For the case “L-section ring without support ring”, the bearing designation is :YRT
L-section ring with support ring:YRT bore diameter VSP
For the case “L-section ring with support ring”, the bearing designation is :YRT VSP
Caution! For bearing arrangements with a supported L-section ring , only bearings with the suffix VSP,EB or T52EA can be ordered. If the normal design is mounted with a supported L-section ring, there will be a considerable increase in the bearing frictional torque .The support ring should be at least twice as the shaft locating washer of the bearing.

05-4(1)

 

 

 

 

Fitting:
Retaining screws secure the bearing components during transport, For easier centring of the bearing ,the screws should be loosened before fitting and either secured again or removed after fitting. Tighten the fixing screws in crosswise sequence by using a torque wrench in three stages to the specified tightening torque MA, rotating the bearing:
Stage 1 40% of MA
Stage 2 70% of MA
Stage 3 100% of MA
Observe the correct grade of the fixing screws.
Caution! Mounting forces must only be applied to the bearing ring to be fitted, never through the rolling elements. Bearing components must not be separated or interchanged during fitting and dismantling. If the bearing is unusually difficult to move ,loosen the fixing screws and tighten them again in steps with a crosswise sequence. This will eliminate any distortion. Bearings should only be fitted in accordance with ,Fitting and Maintenance Manual.

YRT Dimensional tolerances, mounting dimensions, axial and radial runout YRT

Dimensional tolerance Mounting dimensions Axial and radial
runout
Bore Outside
diameter
H1
mm
ΔH1s
mm
Restr-
icted
ΔH1s
mm
H1
mm
Restr-
icted
ΔH1s
mm
Stan-
dart
µm
Restri-
cted
µm
d
mm
Δds
mm
D
mm
ΔDs
mm
50 -0.008 126 -0.011 20 ±0.125 ±0.025 10 ±0.02 2 1
80 -0.009 146 -0.011 23.35 ±0.15 ±0.025 11.7 ±0.02 3 1.5
100 -0.01 185 -0.015 25 ±0.175 ±0.025 13 ±0.02 3 1.5
120 -0.01 210 -0.015 26 ±0.175 ±0.03 14 ±0.02 3 1.5
150 -0.013 240 -0.015 26 ±0.175 ±0.03 14 ±0.02 3 1.5
180 -0.013 280 -0.018 29 ±0.175 ±0.03 14 ±0.025 4 2
200 -0.015 300 -0.018 30 ±0.175 ±0.04 15 ±0.025 4 2
260 -0.018 385 -0.02 36.5 ±0.2 ±0.05 18.5 ±0.025 6 3
325 -0.023 450 -0.023 40 ±0.2 ±0.05 20 ±0.025 6 3
395 -0.023 525 -0.028 42.5 ±0.2 ±0.05 22.5 ±0.025 6 3
460 -0.023 600 -0.028 46 ±0.225 ±0.06 24 ±0.03 6 53
580 -0.025 750 -0.035 60 ±0.25 ±0.075 30 ±0.03 10 53
650 -0.038 870 -0.05 78 ±0.25 ±0.1 44 ±0.03 10 53
852 -0.05 1095 -0.063 80.5 ±0.3 ±0.12 43.5 ±0.03 12 63
950 -0.05 1200 -0.063 86 ±0.3 ±0.12 46 ±0.03 12 63
1030 -0.063 1300 -0.08 92.5 ±0.3 ±0.15 52.5 ±0.03 12 63

For rotating inner and outer ring,measured on fitted bearing, with ideal adjacent construction.
Special design,YRT only.
By agreement only for rotating outer ring.

Dimensional tolerance Mounting dimensions Axial and radial
runoutµm
Bore Outside
diameter
H1
mm
ΔH1s
mm
H2
mm
d
mm
Δds
mm
D
mm
ΔDs
mm
200 -0.015 300 -0.018 30 +0.04
-0.06
15 4
260 -0.018 385 -0.02 36.5 +0.05
-0.07
18.5 6
325 -0.023 450 -0.023 40 +0.06
-0.07
20 6
395 -0.023 525 -0.028 42.5 +0.06
-0.07
22.5 6
460 -0.023 600 -0.028 46 +0.07
-0.08
24 6

For rotating inner and outer ring,measured on fitted bearing, with ideal adjacent construction.

Special design:
For YRT, axial and radial runout tolerances reduced by 50%,
Additional text: axial/radial runout 50%
For YRT, loser tolerance on mounting dimensions H1 and H2. Additional text:H1 with tolerance±…; H2 with tolerance.

 

 

In the same time,we can also supply the below goods:

The type of YRT rotary table YRT series are as below:

YRT50,YRT80,YRT100,YRT120,YRT150,YRT180,YRT200,YRT260,YRT325,YRT460,

YRT580,YRT650,YRT850,YRT950,YRT1030

YRTS series:

YRTS50,YRTS80,YRTS100,YRTS120,YRTS150,YRTS180,YRTS200,YRTS260,YRTS325,YRTS460,YRTS580,YRTS650,YRTS850,YRTS950,YRTS1030

ZKLDF series:

ZKLDF100, ZKLDF120, ZKLDF150, ZKLDF200, ZKLDF260, ZKLDF325, ZKLDF395, ZKLDF460

YRTM series:

YRTM50,YRTM80,YRTM100,YRTM120,YRTM150,YRTM180,YRTM200,YRTM260,YRTM325,YRTM460,YRTM580,YRTM650,YRTM850,YRTM95

 

Welcome here if you have any demands!

 

 

 

 

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Fax : 86--13213639372
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