factory customized Steel Gravity Roller - Rubber Disc Return Roller – Joyroll

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We insist on the principle of development of 'High quality, Efficiency, Sincerity and Down-to-earth working approach' to deliver you with great provider of processing for Pulley Rubber Lagging, Belt Conveuor Idler, Rubber Conveyor Rollers, As a result of our hard perform, we have always been around the forefront of clean technology merchandise innovation. We've been a eco-friendly partner you can rely on. Get hold of us today for additional data!
factory customized Steel Gravity Roller - Rubber Disc Return Roller – Joyroll Detail:

The rubber disc return roller avoid the build up of material that can be deposited onto the roller surface which can cause the roller diameter to develop an irregular worn surface and change shape. This is often a major cause of belt mistracking. JOYROLL rubber disc roller are a reliable and simple maintenance solution to this common belt conveyor problem.

SPECIFICATION:
Roller Diameter: 89, 102, 108, 114, 127, 133, 140, 152, 159, 165, 178, 194, 219mm

Roller Length: 100-2400mm.
Shaft Diameter: 20, 25, 30, 35, 40, 45, 50mm
Bearing type: 6204, 6205, 6305, 6206, 6306, 6307, 6308, 6309, 6310
Surface Treatment: Paint Spraying, Electrostatic Powder Coating, Galvanization.
Standard: DIN, CEMA, JIS, AS, SANS-SABS, GOST, AFNOR etc.

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

7. Lubricating Grease:
#2 Long lasting lubricating grease, working condition -20°c to 120°c

8. Surface Treatment:
Electrostatic Powder Coating

FEATURES

  1. Non-stick roller shell surface
  2. Cost savings of replacement rollers with less failures and maintenance free;
  3. Ideal for return belt carryback problems;
  4. Highly-effective labyrinth seals protected from dust & water into the bearing;
  5. Designed and manufactured for a long, trouble-free life;
  6. Maintenance-free, high-quality sealed ball bearing.

APPLICATION:
Mining

Steel mill
Cement plant
Power plant
Chemical Plant
Sea Port
Storage etc.

CERTIFICATE:
ISO9001, SGS, CE


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factory customized Steel Gravity Roller - Rubber Disc Return Roller – Joyroll detail pictures


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  • The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!
    5 Stars By Evangeline from Venezuela - 2017.09.28 18:29
    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Aaron from Austria - 2017.11.01 17:04
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