HZ-ST Steel bushing Suppliers, Company - Zhejiang Huazhou Technology Co., Ltd.

HZ-ST Steel bushing

Application characteristics：

Compared to traditional steel based heat-treated sliding bearings, the special surface heat treatment process increases hardness while further reducing friction coefficient and improving wear resistance. Under good sealing conditions, the durability test under heavy load and initial lubrication conditions even exceeds the performance of copper alloy solid lubricating materials. This type of bearing design is used in low-speed, high load, impact, powder and other harsh working conditions with lubrication. Compared with traditional steel based bearings, the oil supply cycle is greatly extended, and its service life is also greatly improved.

Material structure

Using high-quality alloy steel as the matrix, through special surface infiltration treatment and processing technology, the wear resistance and anti bite performance of traditional alloy steel heat-treated bearings have been further improved, while significantly reducing the friction coefficient. The special structure of the surface design has greatly extended the oil supply cycle.

CSB-260

standard oil tank

CSB-262

Regular mesh oil tank

CSB-265

Rule oil hole

Technical Parameter
Model		CSB260	CSB262	CSB265
Maximum Load	Static bearing capacity	250Mpa	300Mpa	300Mpa
Maximum Load	Dynamic load bearing	100Mpa	100Mpa	150Mpa
Maximum linear velocity	lubrication	10m/min	15m/min	30m/min
Maximum PV value	lubrication	1.5N/mm²*m/s	2.0N/mm²*m/s	2.5N/mm²*m/s
Fensity		7.8g/cm³	7.8g/cm³	7.8g/cm³
Surface hardness		≥550 HV1	≥550 HV1	≥550 HV1
Thermal expansion coefficient		1.1×10*℃	1.1×10*℃	1.1x10*℃
Friction coefficient	lubrication	0.05~0.2	0.05~0.2	0.05~0.2
Usage temperature		-40℃-+250℃	-40℃-+250℃	-40℃-+250℃
Matching axis	roughness	Ra<0.8	Ra<0.8	Ra<0.8
Matching axis	hardness	HRC 58-62	HRC 58-62	HRC 58-62
Recommended lubrication interval time		<50hr	50-100hr	250hr
Recommended seat hole: H7. Shaft 17

Typical applications

The development of this type of bearing aims to replace traditional heat-treated steel based sliding bearings, in order to reduce maintenance costs, lubrication costs, and early abnormal wear during use. Typical applications include port machinery, forest machinery, engineering machinery, truck axles, logistics equipment and other oil cylinder ear bushings, articulated bearings.