A new era total solution|Wrapped sliding bearing, bronze/PTFE sliding layer, Maintenance-free VSB-11

A new era total solution|Wrapped sliding bearing, bronze/PTFE sliding layer, Maintenance-free VSB-11

添加时间:2017-05-08 14:54:00



·         Specific load capacity static ≤ 250 [N/mm2]

·         Specific load capacity dynamic ≤ 140 [N/mm2]

·         Sliding speed ≤ 2.5 [m/s]

·         Friction value 0.03 [µ] to 0.25 [µ]

·         Temperature strain -200 [°C] to 280 [°C]






·         Support material Bronze

·         Intermediate layer Sintered bronze

·         Sliding layer PTFE

Tolerance details

·         Housing Ø H7

·         Bushing inner-Ø after mounting H9

·         Shaft tolerance f7 or h8

Range of application

·         hydraulic cylinders, cranes and construction machinery, all sorts of production machinery, pumps and medial devices

Suitable for dry running, low coefficient of friction, lower wear, good sliding characteristics, the transfer film created can protect the mating metal surface, suitable for rotary and oscillating movement. Very high chemical resistance, low absorption of water and swelling, also performs very good lubrication feature, the bronze backing provides the improved corrosion resistance 


PTFE/fibre mixture thickness 0.01~0.03mm, provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film.

Sintered bronze powder thickness 0.20-0.35mm, provides max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE/Fibre mixture.

Steel backing, provides high load carrying capacity, excellent heat dissipation

Bronze backing, provides exceptionally high load carrying capacity, excellent heat dissipation and very good corrosion resistance.


This material meets the demanding criteria for long life and trouble-free performance with or without lubricant. The bronze backing provides high corrosion resistance, anti magnetic properties and a good thermal conductivity, The bearings are particularly appropriate for high temperature environment where no oil is efficient and the machine must be under successive long period working condition. Typical applications covered Steel metallurgy industry such as bushes for roller grooves of successive casting machines, cement grouting pumps and screw conveyers for cement.

VSB-11 (see the above profile picture) is backed with tinbronze with porous bronze sintered on it and polymers imbedded into the bores of the bronze. The tin-bronze backprovides the products with stronger mechanic strength and load capability. By combining the metals and the polymers together, its products are endowed with the lower friction coefficient and good capacity of anti-abrasion and selflubrication. Moreover, the tin-bronze back is of good heat conducting capability. Products of VSB11series are widely applied in metallurgy machine and casting machines, consecutive casting machines, cemetery machines, spiral transporting machines, etc.


   Bearings and Componments 

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Website: www.viiplus.com       


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