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High Precision YRT325 Bearing

As a professional bearing manufacture in China, LYYJ is aimed to the international market. LYYJ develops and manufactures various kinds of bearings and products, such as Slewing bearings, Crossed Roller bearing, Rolling Mill bearing, Cylindrical Roller bearing, Taper Roller bearing, Angular Contact Ball bearing, Deep Groove Ball bearing, Auto bearing, Back-up Roller, Large size bearing, Extra-large bearing and non-standard bearings. LYYJ warmly been certified welcome domestic and overseas clients visit our factory and join hands with us. We always offer our valued customers the reliable products, reasonable price, completed technology and best-quality services. We will build up powerful wings for your enterprise.
Product Details:

High Precision YRT325 Bearing Hot Sale Price from China Yujie

1. Company Profile

Luoyang Yujie ( hereafter be called for short LYYJ) relies on the largest bearing production base in Luoyang, China. We possess potential technical ability, have advanced technical equipment, perfect inspection sets, and strong technical power. Our advanced and experienced professional staff research and develop new products constantly in order to meet different demands of customers.

As a professional bearing manufacture in China, LYYJ is aimed to the international market. LYYJ develops and manufactures various kinds of bearings and products, such as Slewing bearings, Crossed Roller bearing, Rolling Mill bearing, Cylindrical Roller bearing, Taper Roller bearing, Angular Contact Ball bearing, Deep Groove Ball bearing, Auto bearing, Back-up Roller, Large size bearing, Extra-large bearing and non-standard bearings.

LYYJ warmly been certified welcome domestic and overseas clients visit our factory and join hands with us. We always offer our valued customers the reliable products, reasonable price, completed technology and best-quality services. We will build up powerful wings for your enterprise.

2. Manufacturing Process

(1)Forging TestUnderstanding the material of the forging, the status after forging and check whether the forging has any default of lamination and surface cracks.

(2)Turning After rough turning, ultrasonic forging examination to measure whether material inner parts any crack defects or slag inclusion, etc. and to make sure the bearings could reach normal service life and no premature failure.

(3)Heat Treatment Medium frequency quenching on the surface of the bearing raceway, hardness not less than 55HRC, hardening case depth not less than 4mm, soft zone width not less than 50mm, mark in relevant.

(4)Shaping and HobbingFor the slewing bearings with inner and outer teeth, shaping and hobbing process before grinding in accordance with the technical requirements procession grade requirement.

(5)Drilling Mark and test accurately in CNC drilling machine according to technical requirement as drawing, make sure no dimension deviation before drilling. Installing holes combined with soft band 180 degree alternates and holes errors not larger than 0.5mm.

(6)Grinding After rough grinding, resin grinding granularity wheel 46 or 60 degree applied. The finish grinding volume less than rough grinding volume. Finish degree and dimension meet the technology requirement in drawing.

(7)Assembling Clearance preparation, trail assembly be carried out after grinding to get preliminary clearance, finial grinding is processed to reach required clearance in drawing. Then starting torque test, fix raceway, clean again to generate appropriate starting torque. Then component test, and final packing.


3. Design & Installation

1)Bearing installation diagram

① Design & Installation Structure with the requirement shown in following figure:

Retaining screws secure the bearing components during transport. For installing the bearing easier, the screws should be loosened before fitting, and secured again or replaced by positioning screws-after fitting.

② The L-section ring can be fitted with unsupported or supported ring.

uWithout supported ring, the bearing type is YRT.

uWith supported ring, the bearing type is YRT...VSP, and the whole surface of L-section should be supported.

uMounting forces must only be applied to the bearing ring to be fitted, never through the rolling elements. Tighten the fixing screws in crosswise using a torque wrench(shown in figure 2)

uDon’t separate or interchanged bearing components during fitting and dismantling.

uStarting friction torque can be 3 to 3.5 times as high as the value of friction torque in the dimension tables.




4.YRT Rotary Table Bearing Installing:

(1)Put the YRT bearing into bearing house

(2)YRT bearing and bearing house is clearance fit

(3)Tighten outer ring mounting screws in Cross way

(4)Press the Rotary Table onto the YRT bearing

(5)Another side of the YRT bearing connect to flange

(6)Rotary table and YRT bearing is shrink fit

(7)Aligning flange, YRT bearing, Rotary table

(8)Tighten Inner ring mounting screws in Cross way

(9)Connect the flange and bearings to turntable table with mounting screws


5.YRT325 bearing technical parameter:



Model

YRT325

Boundary dimension

d

Unit: mm

325

D

450

H

60

H 1

40

C

20

D 1

415

J

342

J 1

430

Basic load rating (KN)

Axial load

Dynamic

Ca

275

Static

Coa

1930

Radial load

Dynamic

Cr

120

Static

Cor

345

Limiting speed (grease)

R/min

170

Weight

Kg

25


6. Enterprise culture We stick to the principles of “seek survival with quality,build brand with honesty” we constantly take the high quality and best service as our priority.


7. Contact Us


Tina Zuo

WhatsApp: 0086-155 153 99092

Skype: 0086-155 153 99092

Tel.: 0086-379-80865527

Fax: 86-379-65136562

Email:sales01@yujieindustry.com

Web.:www.yogiemachinery.com

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