Timken XR678052 Tapered Cross Roller Bearing 330.2x457.2x63.5mm Nc vertical boring mills
Bearing Model No.: XR678052
(Inner Diameter)d: 330.2mm
(Outer Diameter) D: 457.2mm
(Thickness / Width) B: 63.5mm
Cr(KN):100
Ca(KN):123
Material:GCr15SiMn
Delivery: in stock
Related Taper crossed roller bearings
XR496051/616093A,
XR678052/615661A/912-309A/300XRN50
XR766051/615894A/912-308A/0457XRN060/XD.10.0457P5
XR820060/615662A/580XRN76/912-304A/XD.10.0580P5
XR855053/615659A/0685XRN091/912-305A/XD.10.0686P5
XR882055/615895A/0901XRN112/912-306A/XD.10.0902P5
XR889058/ BFKB353282/H4A /1028XRN132/912-307A/XD.10.1029P5
XR897051/615898A/XD.10.1549P
JXR637050,JXR652050,JXR699050
More parameters

Structure of Tapered Roller Bearings XR series
Precision crossed roller bearings (XR) are designed to offer the highest levels of rotational accuracy and rigidity while conserving space and saving material costs. The bearing features two sets of races and rollers brought together at right angles with alternate rollers facing in opposite directions. This allows two half-rows of rollers to fit into the space of one. The steep-angle, tapered geometry results in a total effective bearing spread much greater than the width of the bearing itself.
Able to withstand high overturning moments, the crossed roller bearing is ideal for the table bearing of machine tools, including vertical boring and grinding machines. It is uniquely suited to many other pivot and pedestal applications where space is limited or the lowest possible center of gravity of a rotating mass is required.
Size range:
ID 203.200 mm to 2463.800 mm (8.000 in. to 97.000 in.)
OD 279.400 mm to 2819.400 mm (11.000 in. to 111.000 in.)
Design Attributes:

• Provides benefits of two-row bearings in single-row space.
• Withstands high overturning moments.
• Combines the compactness of a single-row bearing with the stability of a two-row bearing.

Product Application

Vertical boring mills
Vertical grinding machines
Other machine tools
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Transportation available

Payment Terms:
Most of our customers use T/T( 40% in advance, Balance before shippment), Western Union ,Money Gram, for larger amount consider LC, all can be negotiable.

Many other precision bearings series available
1.INA YRT rotary table bearings YRT50.....YRT1200
2.INA YRTS high speed Axial Radial Load Rotary table bearing YRTS200....YRTS460
3.INA YRTM rotary table bearings with AMO angle measuring system to improve the accurancy. YRTM150.....YRTM460
4.INA ZKLDF serie bi-direction thrust angular contact ball bearings ZKLDF100.....ZKLDF460
5.THK (IKO) RB/CRB/CRBC series crossed roller bearings Inner ring rotate bearing id 35mm----1500mm
6.THK RE series crossed roller bearings ,Outer ring rotate id 35mm----1500mm
7.THK RA thin section crossed roller bearing id 100mm---200mm
8.THK SX series crossed roller bearings ,ID 70mm--------500mm
9.THK RU Series integrate inner ring and outer ring ,industrial robots use cross roller bearing RU42---RU445
10.INA XU/XSU series cross roller slewing bearing,XU050077---XU300515,XSU080168---XSU090398
11.IKO CRBH series integrate inner ring and outer ring cross roller bearing CRBH5013------CRBH25025
12.Timken XR/JXR Crossed Tapered Roller Bearings ,used for high speed vertical lathe XR496051---XR,XR678052,XR766051,XR855053,XR882055,XR889058,JXR637050,JXR652050,JXR699050.
13.Kaydon Thin section ball bearings KA,KG,KD series.
14.Ceramic bearings
15.Slewing bearings
16.Custom made bearings

www.locitymachinery.com
www.yrtbearings.com
www.tradebearings.com/Lcbearing/

Luoyang Yadian Machinery Equipment Co.,Ltd is a professional precision bearing manufacturer,located in the well-kown bearing production base-luoyang city. Many workers with middle and senior bearing production management experiences and the Technicians can supply you perfect products technical service.Mainly produce rotary table bearings,crossed roller bearings,crossed taper roller bearings,Thrust cylindrical roller bearings etc. The precision level is P5,P4,P2. Bearing Size range is from Inner ring 50mm---Outer ring 130Locity Machinery Co.ltd is a professional precision bearing manufacturer,located in the well-kown bearing production base-luoyang city. Many workers with middle and senior bearing production management experiences and the Technicians can supply you perfect products technical service.Mainly produce rotary table bearings,crossed roller bearings,crossed taper roller bearings,Thrust cylindrical roller bearings etc. The precision level is P5,P4,P2. Bearing Size range is from Inner ring 50mm---Outer ring 1300mm.

Main products are rotary table bearings YRT,YRTS,YRTM,ZKLDF series and crossed cylindrical roller bearings RB,RE,RU,RA,RA-C,CRB,CRBC,CRBH,XSU,SX. Crossed taper roller bearings JXR,XR,Thrust cylindrical roller bearings 811,812 series etc. At the same time , Bearings precision level of Locity machinery can achieve to P4,P2 ,we accumulated many experiences After years of service to customers abroad and home, products have been exported to Germany,Italy,Korea,Japan,America,Belgium,Turkey etc. The most application area is precision rotation working table,machining center rotation table,Industrial robot joints and rotation,manipulator rotation parts,calculator,IC manufacturing equipments,CNC machine tool,Automation industry,direct drive motor,precision instrument,radar,Medical equipment,printing,textile industries etc. Replace Import ones.

Yadian Machinery Bearings are all controlled according to ISO9001 quality requirements before factory.Quality is stable and with best performance compare with price. We are always receive good assessment from customers domestic and abroad.Waiting our win-win relations