Beijing XLBearings Limited

Chinese

English

·	Ceramic bearings
	The advantage of ceramic bearings Technical service of ceramic bearings Full ceramic(All-ceramic) bearing of ZrO2 material Full ceramic(All-ceramic) bearing of Si3N4 material Full ceramic(All-ceramic) bearing of full complement balls Full ceramic(All-ceramic) bearing of ceramic cage Hybrid construction ceramic ball bearing
·	Ceramic balls

·	Plastic Bearings
	Precision plastic bearings Anti-Corrosion Plastic Bearings Anti-Acid & Anti-Alkali Bearing High Temperature Application Plastic Bearings Plastic Inserts & Plastic Pillow Blocks
	Wheel hub bearings Auto clutch bearings Auto universal joint Auto water pump bearings Auto Tensioner & Idler Bearings Auto alternator bearings Auto steering wheel bearings Auto air-condition bearings

· Add:1904, No.11, Jianwai
         SOHO, 39 East 3rd-Ring
         Road, Chao Yang District,
          Beijing, China
· Tel: +86 10 81572284
· Fax: +86 10 81572284
· Email:xlb@xlb.cc
· URL:www.bj-xlbearings.com


Products

The performance of stainless steel

In some special place, normal chrome steel can't meet the requirements. It can be choosen stainless steel bearings with the same type. Our company usually take the following materials: SISI SUS304, AISI SUS316L, AISI SUS440C, AISI SUS440B etc. The Martensite stainless steel AISI SUS440C is our stainless steel bearings' standard material. It suits for middle speed and higher load. For special order, we can also supply The Austenite stainless stell bearings(304,316or316L). Because of its hardness, it suits for low speed and low load.

Austensite Stainless Steel

Anti-Corrosion:
It has the character of anti-rust and anti-corrosion. As the quanlity of Cr is increased, anti-nitric acid and other oxidizability acid's corrosion and high-temperature anti-oxidizability, acidiablity will be increased. Alonged with Ni be increased, anti chlorid corrosion character and anti reducibility acid's character will be increased. When the Cr will be reduced or add stable element, the steel's anti crystal structure corrosion will be improved. As increased the Mo, steel's anti reducibility acid and anti pitting corrosion and gap corrosion character will be increased. The steel contains Cu, especially Mo and Cu compound, the steel's anti-nitric acid character has aparently improved. When it contains Si 4%, it can anti fuming nitric acid corrosion. When low down some impurities in the steel, such as C, Si, P, Ti. It can be used as nitric, carbamide class stainless steel.

Mechanics and Physical Character:
It has intensity-toughness-moldness good cooperation. It has good toughness in the low temperature environment, it can be used as low temperature steel. Along with C in the steel is reduced, steel's strongness will be downed a little. ( generally low carbon steel is lower than high carbon for 29.4~~49Mpa). Along with distortion measurement which in the cold states increased, steel's intensity and elasticity would be improved. When steel contains N, steel' s intensity Because of Mn and N' s consolidation, Cr-Mn Austenite Stainless Steel's intensity is 3% higher than Cr-Ni Austenite Steel, and moldness & toughness are still good. This kind of steel is non-magnetism, so it can be used as non-magnetic steel.

Martensite Stain Steel

Anti-corrosion:
The Martensite Nickel Chrome Stainless Steel has anti-rust, anti weak-medium corrosion. Along with Cr is increased and add Mo, its anti-corrosion is increased. Along with C is increased, its anti-corrosion is low-down.And when its hardness increase, its anti-sulfureted hydrogen and corrosion. The Martensite Nickel Chrome Stainless Steel has anti-rust, when it contains Cr17%, its anti corrosion will be same or a little lower than 18-8.

Mechanics and Physicaly Character:
The Martensite Nickel Chrome Stainless Steel along with C increased, steel's intensity & hardness is increased, it can up to RC60 and above. Steel's anti-milling, but its toughness is bad. When it contains Mo&V, steel' s intensity would be increased. When it contains fewer Ni, steel' s intensity & toughness has good cooperation. This kind of steel has brittleness changeable temperature differences. It has magnetism, low density and good anti-shake character, its elastic measurement is a little bit lower than carbon steel. The Martensite Nickel Chrome Stainless Steel has high intensity(

s no more than 9800Mpa) and high hardness (RC no more than 36) , has higher intensity/weight ratio.

Meterial In the Stainless Steel Bearings:
SUS304, SUS316, SUS316L: the Austenite stainless steel bearing's inner&outer ring, ball, cage, rivet, pillow block, terminal strand, anti-dirt shield,seal framework. The Martensite Stainless Steel bearing's cage, rivet, pillow block, terminal strand, anti-dirt shield and seal framework.
SUS440C,SUS440B: The Martensite Stainless Steel bearing's inner&outer ring,ball.

Austenite
type	GB	ASTM	JIS	DIN	usage
Austenite	1Cr17Ni7	301	SUS301	X12CrNi177	anti high temperature,anti corrosion,and other usage
	1Cr18Ni9	302	SUS302	X12CrNi188
	y1Cr18Ni10	303	SUS303	X12CrNiS188
	0Cr18Ni9	304	SUS304	X5CrNi189
	00Cr19Ni10	304L	SUS304L	X2CrNi189
	0Cr17Ni12Mo2	316	SUS316	X5CrNiMo1810
	00Cr17Ni14Mo2	316L	SUS316L	X2CrNiMo1810
	00Cr18Ni14Mo2Cu2		SUS316JIL
	0Cr18Ni10Ti	321	SUS321	X10CrNiTi189
	0Cr19Ni13Mo3	317	SUS317	X2CrNiMo1816
	0Cr19Ni13Mo3	317L	SUS317L
	5Cr21Mn9Ni4N		SUH35		make power machine,admission&exhaust door
	5Cr21Mn8Ni2N	21-2N	SUH37
	2Cr21Ni12N	21-12N	SUH37
	0Cr18Ni1Nb	347	SUS347	X10CrNiNb189	high-pressure boil tube

Martensite
type	GB	ASTM	JIS	DIN	USAGE
Martensite	1-6Cr13	410	SUS410	X10Cr13	dishware,operation instrument
	1Cr17Ni2	431	SUS431	X22Cr17Ni17
	7Cr17	440A	SUS440A
	9Cr18	440C	SUS440C	105CrMoV17
	9Cr19Mo	440C	SUS440C
	9Cr18MoV	440B	SUS440B	X90CrMoV18
	4Cr9Si2	HNV3	SUS11,SUH1	X90CrMoV18	make power machine,admission&exhaust door