Mining Belt Q235 Carbon Conveyor Steel Roller Weld On Bearing

Mining Belt Q235 Carbon Conveyor Steel Roller Weld On Bearing

High Quality Mining Belt Conveyor Steel Roller , Return Idler Roller , Carrying Idler Roller​

Stainless steel rollers are also called 304 rollers and anti-magnetic rollers. Anti-magnetic rollers are mainly used under the iron separators of belt conveyors in underground mines or power plants to prevent the rollers from being picked up by the iron separators. Because the roller is at the head of the belt conveyor, the impact is relatively large, so the roller tube, roller shaft, bearing seat, bearing and shaft are all made of stainless steel.

The characteristics of the stainless steel roller: high performance, low friction coefficient, not easy to wear the belt; excellent self-lubricating, no oil injection, not easy to jam under harsh conditions; with, flame retardant, chemical resistance (acid, alkali and Solvent) corrosion.

RAW MATERIAL OF ROLLERS:
1. Pipe:
High precision longitudinal seam-welded steel pipe, materials S235JR(EN 10025-2),St37-2 (DIN 17100)
Remove internal and external welding bars and uniform wall thickness ensure the roller good dynamic balance
Good out of roundness of pipe ensure the roller have small T.I.R
The pipe is cut and machined using automatic CNC machines, that guarantee the tolerances precision
Roller surface treatment is electrostatic powder coating, thickness of coating approx. 80-120 μ.

2. Shaft:
Cold-drawn round steel bar, materials S235JR(EN 10025-2),St37-2 (DIN 17100)
High precision diameter tolerance, seat IT6 acc. to EN ISO 286-1, perfect match with bearings.
Cut and machined by automatic numerically controlled machines
Precise positioning of circlip groove ensure roller have very small axial movement.
Galvanized shaft are available.

3. Bearing:
Deep-groove ball bearings, tolerance class P5 (DIN 620)
C4 radial clearance provides for optimum roller operation
Bearings are filled with lithium base grease throughout its service life
Nylon cage advantage: self-lubricating, abrasion resistance and low heat by friction, low noise, long service life
A variety of brands are available (HRB,ZWZ,LYC,SKF,FAG,TIMKEN,NSK,NTN etc.)

4. Bearing House:
Made of high quality cold-rolled steel plate, materials DC01(EN 10130), St12(DIN 1623)
High precision, smooth and no burr, bearing fit tolerance standard ISO M7
Perfect concentricity ensure the roller low T.I.R

5. Seal System:
The system comprises of inner seal, labyrinth seal, galvanized metal dust cover, protective cover
Inner lip seal prevent the pipe internal rusting entering the bearing, material is Nylon.
Labyrinth seal have two parts, female labyrinth seal and male labyrinth seal, both material are Nylon or POM,especially effective against the intrusion of outside contaminants
Labyrinth seal filled with lithium lubricating grease, maintenance-free throughout its service life
The labyrinth system can be fitted with a rubber friction ring to prevent the intrusion of water

Conveyor roller parameters

Conveyor Steel Roller Application

Conveyor steel roller is an important component for light to heavy industry bulk material handling equipment,

such as overland conveyors, coal-conveyors, high-speed trough belt conveyor system projects,

crushing and screening.

These equipment are widely used in coal and lignite mining, cement, quarries, tunneling,

power plants installation, ports, salt, iron ore, process plants and fertilizers, sugar plants, and recycling.