YRTC260-XL-PRL50 Bore 260 Mm, Axial/radial Cylindrical Roller Bearings, Double Direction

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YRTC260-XL-PRL50

Bore Diameter:260 mm

Outside Diameter:385 mm

Width:55 mm

Weight:17.8 kg

Min. Order:1 Piece

The YRTC260-XL-PRL50 Rotary table bearings are suitable for high-precision, high-rigidity rotary applications. Classic applications include CNC machine tool rotary tables and indexing tables, industrial robot joints, military radar antennas, aerospace measurement equipment, astronomical telescopes, and medical devices.

The YRTC260-XL-PRL50 bearing is a Axial/radial cylindrical roller bearings, double direction, YRTC with an inner diameter of 260 mm , an outer diameter of 385 mm, a width of 55 mm. 50Mn,42CrMo rings, XL rolling mlement. Its dynamic radial rated load is approximately 139779 N, its static radial rated load is approximately 354967 N. Its dynamic axial rated load is approximately 167973 N, its static axial rated load is approximately 1089763 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

260 mm

Outside Diameter:

385 mm

Thickness:

55 mm

Weight:

17.8 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

139779 N

Static load Capacity, Radial (Cor):

354967 N

Dynamic load Capacity, axial:

167973 N

Static load Capacity, axial:

1089763 N

Limiting speed (Oil rpm):

284

Specifications:

Structure:

Axial/radial cylindrical roller

Number of Rows:

Three

Bearing Material:

50Mn,42CrMo

Seals Type:

Open

Rolling Mlement Material:

Operating Temperature:

-30 to 120 °C

Series:

YRTC

Rolling Element:

cylindrical rollers

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

50 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

YRTC260-XL-PRL50 bearings ( 260 mm x 385 mm x 55 mm) have the advantages of It can withstand axial, radial and overturning moments simultaneously, has a compact structure, is easy to install, and is suitable for heavy-duty rotation, and are therefore widely used in the positioning axes, swivel type axes.

Part Number	YRTC260-XL-PRL50
X-Life	XL long life design
Mounting	screw
Bearing Type	Axial/radial cylindrical roller bearings, double direction, YRTC
Manufacturer Part Code	YRTC260-XL
Series	YRTC
Seal type	Open
L-section ring	For mounting with unsupported L-section ring
Axial runout and radial runout	PRL50 = Restricted axial runout and radial runout tolerances for rotating inner ring and outer ring
Rolling Element Type	cylindrical rollers
Rolling Element Material	GCr15
Ring Material	50Mn,42CrMo
Rows NO.	Three
Alias	Super Precision Bearings for Rotary Tables
m Weight [kg]	17.8
Reference From	INA YRTC260-XL-PRL50
Grease for relubrication	Arcanol MULTITOP
Main Dimensions
d φ Inside [inch]	10.236
d tolerance [mm]	-0.018 to 0
D Φ Outside [inch]	15.157
D tolerance [mm]	-0.02 to 0
H High [inch]	2.165
H₁ [inch]	1.437
H₂ [inch]	0.728
C [inch]	0.709
D₁ [inch]	13.661
J [inch]	11.024
J₁ [inch]	14.370
Performance
C_r Dynamic Radial [lbf]	31422
C_0r Static Radial [lbf]	79796
C_a Dynamic Axial [lbf]	37760
C_0a Static Axial [lbf]	244978
n_G Limiting speed (oil) [r/min]	284
Operating temperature - T(min) [°C]	-30
Operating temperature - T(max) [°C]	120
Mounting dimensions
d₁ Fixing screws (Inner ring) [inch]	0.366
d₂ Fixing screws (Inner ring) [inch]	0.591
a Fixing screws (Inner ring) [inch]	0.323
Fixing holes Inner ring Quantity	34
d₃ Fixing screws (Outer ring) [inch]	0.366
Fixing holes Outer ring Quantity	33
n Pitch quantity	36
t Pitch separation angle [°]	10
t₁ Axial and radial runout [µm]	6
G Threaded extraction hole	M12
Threaded extraction hole Quantity	3
M_A Screw tightening torque [Nm]	34
M_R Bearing friction torque [Nm]	9
Additional information
C_aL Rigidity of bearing position (axial) [kN/µm]	6.9
C_rL Rigidity of bearing position (radial) [kN/µm]	5.3
C_kL Rigidity of bearing position (Tilting rigidity) [kNm/mrad]	97
C_aL Rigidity of bolling element set (axial) [kN/µm]	19
C_rL Rigidity of bolling element set (radial) [kN/µm]	8.1
C_kL Rigidity of bolling element set (Tilting rigidity) [kNm/mrad]	253

The YRTC260-XL-PRL50 Rotary table bearings are precision bearings with a thrust-radial combined structure. They mainly consist of a housing ring, a shaft ring, two rows of axial cylindrical roller cage assemblies, and one row of radial cylindrical roller cage assemblies. The housing ring and shaft ring are evenly distributed with mounting screw holes for easy direct fixing.

The advantages of rotary table bearing design are that it can simultaneously withstand radial loads, bidirectional axial loads and overturning moments. The negative clearance preload design ensures extremely high rigidity and rotational accuracy. Moreover, the compact structure greatly simplifies rotary table design and reduces installation and maintenance costs.

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YRTC260-XL-PRL50 Bore 260 Mm, Axial/radial Cylindrical Roller Bearings, Double Direction

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