Specializing in the production of conveyor belts.

To provide customers with more conveyor accessories and services in the conveyor system.

Rubber Disc Return Roller

Rubber Disc Return Roller

Steel Belt Conveyor Self-Cleaning Return Roller with Rubber Disc . Conveyor rollers(idlers) are important parts on Belt Conveyor, it endure over 70% resistance of one belt conveyor. The conveyor roller(idler) used for supporting conveyor belt and the material.

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Product Details

MONSTER ROLLER conveyor represent the highest quality rubber disc return roller to assist our customers in helping make their plant/mine/facility to become more efficient, saft and productive. 


Sleeve Return Cleaning Roller with Rubber Discs


Conveyor rollers(idlers) are important parts on Belt Conveyor, it endure over 70% resistance of one belt conveyor. The conveyor roller(idler) used for supporting conveyor belt and the material. There are kinds roller we supplied, like steel, nylon, ceramic or rubber. With years designing and manufacturing experience Double Arrow becomes a high quality roller(idler) server in conveyor spares industry.

Technical requirments on the material
1)Steel tube:
*Carbon steel
*Surface of steel tube should be smooth
*without any fault such as crack, folding, layering or lap welding  
*Ovality shoud be less than 1/2 of tolerance of outer diameter
*curvature should be less than 1.0mm/m

Outer D
mm
Thickness S
mm
Theoretical WT
kg/m
Allowable deviation mm
Outer diameterWall thicknessWall thickness difference
NormalHigh levelNormalHigh level
63.53.24.76±0.50±0.30±0.32±0.24≤7.5%
4.56.55±0.45±0.34
76.03.25.74±0.50±0.30±0.32±0.24
4.57.93±0.45±0.34
89.03.26.77±0.60±0.40±0.32±0.24
4.59.38±0.45±0.34
108.03.28.27±0.70±0.40±0.32±0.24
4.511.49±0.45±0.34
133.04.514.26±0.80±0.60±0.45±0.34
5.015.78±0.50±0.38
159.04.517.14±0.90±0.60±0.45±0.34
5.018.99±0.50±0.38
6.022.64±0.60±0.45
194.05.023.30±1.0±0.80±0.50±0.38
6.027.32±0.60±0.45
219.05.026.39±1.1±0.80±0.50±0.38
6.031.52±0.60±0.45


2)Bearing
*Rollers adopt C3 deep groove radial ball bearing which adopts bidirectional seal structure
  to improve the performance of water-proof and dust-proofing.
*Brand: SKF/NSK/NTN/HRB/KOYO/IKO/THK/TIMKEN, etc.
       (Make sure the quality of bearing)

3)Seal
Non-contact seal:
It is seal and its relative motion parts don't contact, and there is proper clearance seal.
Advantage
*Almost do not produce friction heat in the work
*No wear and tear, especially suitable for high speed and high temperature occasion.
*Forming a complex, winding and narrow maze between inner and outer seal part.
*The good performance of water-proof and dust-proof.

4)Lubricating oil
Rolling bearing lubrication purpose is to reduce the bearing internal friction and wear, prevent burning stick.The lubrication effect is as follows.
*Reduce the friction and wear
*To extend the fatigue life  
*Discharge the friction heat and cooling
*To prevent foreign matter into the bearing internal, or to prevent rust and corrosion
ETC.


Technical Requirments on the production
Cutting size of the tube, tube length will be carried out on tolerance level IT. 
 

Size(mm)250-
315
315-
400
400-
500
500-
630
630-
800
800-
1000
1000-
1250
1250-
1600
Tolerance
(mm)
0.320.360.40.440.50.560.660.78


Cut of the tube, bevel roughness will be checked according to max value (12.5_6.3μm) of Ra. The bevel size on two ends should be same without any bur. Cut surface on two ends of the tube should be parallel, will be checked on tolerance level IT10.  Please see tolerance size in the sheet below. (take diameter as standard.)

Size(mm)63-100  100-160160-250
Tolerance(mm)0.150.200.25



Diameter tolerance of installing stop of the bearing housing should conform tolerance level H9, for size requirements please see the sheet below.

Size(mm)50-8080-120120-180180-250
Tolerance(mm)0-0.0740-0.0870-0.100-0.115


Specification: Rubber Disc Return Roller

表格.jpg

Rubber Disc Return Roller Processing Step:


Tube ―→ Auto Cutting―→ Auto Lathing Hole―――――――――

                                                                                                                   |  

* Bearing Housing ―→ Auto Lathing Edge ―→ CO2 Arc Welded       |  ―――→  Pressing Bearing & Seals 

**                                                                                                               |                                  ↓

* Shaft―→ Auto Sawing―→ Auto Machanical Finishing――――――                  Pressing Rubber Rings 

                                                                                                                                                      ↓

                                                                                                                                    Rubber Disc Return Roller

                                                                                                                                                       ↓

                                                                                                                                         Technical Testing

Advantage:

Value price;

Triple labyrinth seal;

Custom powder coated.

Sealed for life ball bearing;

Interchangeable roller assemblies;

Maintenance free sealed ball bearing;

Lifetime more than 20,000-25,000 hours;

Extremely low rolling resistance & lowest operator cost;

JIS, CEMA, SABS, AS standard rubber disc return roller available;


Immersion Test


Sleeve-Return-Cleaning-Roller-with-Rubber-Discs

Hot Tags: rubber disc return roller, China, manufacturers, suppliers, factory, for mining, for cement
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