Belt Convey or Conveyor Spare Bulk Handling Return Roller

Product Description

CONVEYOR ROLLERS IDLERS ,CONVEYOR SPARE PARTS
Main features:
1. Solid design, most suitable for heavy lifting.
2. The bearing housing and steel tube are assembled and welded with a concentric automatic,welding machine.
3. Cutting of the steel tube and bearing is performed with the use of a digital auto device/ machina/equipment.
4. The bearing end is constructed to ensure that the roller shaft and bearing can be firmly connected.
5. Fabrication of the roller is effected by an auto device and 100% tested for its concentricity.
6. Roller and supporting components/materials are manufactured to DIN/AFNOR/FEM/ASTM/CEMA standard.
7. The casing is manufactured with highly composite, anti corrosive alloy.
8. The roller is lubricated and free from maintenance.
9. Working life expectancy is up to 30,000 hours or more, depending on usage.
10. Vacuum sealed with: inner-seal, 3 slot labyrinth seal, V shape rubber ring and eccentrically autocleaning body which has withstood anti water, salt, snuff, sandstone and dust proof experiments.

raw materials and specifications

Axle(shaft)	cold-draw steel ST ST37DINI7100,E24 AFNOR NFA 35501.
Rod	2 0.2 25.2 30.2 40.2 lSO hll accuracy fine polished to 20,25, 30, 40 levels on the universal sealed bearing packaging area. The precision attained isISO h6.
Steel roll	welded with DlN2394 standard, components are ST37 to fit DlN17100 standard.
Bearing housing	cold press working fit lSO M7 accuracy deep press steel with raw material fit DIN1623-1624 standard.
Inner seal circle	lip-lining sealed, component is made of NYLON6 (ISO Pa6).
Bearing	trough type, deep groove ball bearing (Wind age level C3) DlN 6263 series.
Labyrinth seal circle	3 troughs, component is made of NYLON6 (ISO Pa6).
Housing/cover	deep press steel fit DlNl623-1624 standard.
Outer seal circle	sliding rubber ring with V shape, components are nitrosation rubbers which are long lasting, wear resistant, and antioxidant.
Function of protecting cover	used to protect the roller from axial vibration, made by copper alloy which is anticorrosive.
Lubricating oil	to ensure the roller bearing is lubricated continuously, using 2, 3 grade long-lasting lithium grease.

lt contains threelayers of dust proof structure each fabricated with long lasting rubber seals which can effectively prevent penetration by dust and water.lt generates a high volume,high speed,conveyor belt system resulting.In the design of multiple components. 

Welded quality
Roller and bearing housing are welded using an advance,automatic, circular welding machine. The welding process can effectively prevent dust and water from entering the spaces /gap between roller and bearing housing.Also,the smooth surface left by the weld can minimize belt damage.

Bearing and Bearing Housing
All rollers use high quality ball bearings with deep grooves.The bearing housing is shaped through various stages of precision stamping(pressing,forging),to efficiently connect to the bearing cover part.lt needs only to be assembled once,with the various sealed components,which increases the effectiveness of the seal whilst,at the sametime,decreasing the(spinning)impediments to theroller.(enhancing concentricity)

Dynamic Balancing
Our automatic manufacturing and assembling technique has succeeded in accurately balancing the unit to reduce all deviation,therefore both minimizing impact whilst the bearing works at high speed, consequently extending its life span.

Seal
Bearings of the roller are protected by internal and external sealing systems.These help to prevent the deterioration of the lubricating oil and protect the bearings from external dirt infiltration.
The sealing system fabrication incorporates:
* An anti corrosive,protecting shield firmly covering the roller to prevent the penetration from impurities.
* A rubber sealed cover which protects the lip line and prevents penetration by external liquids.
* A steel cover with shell as a guard to protect the bearing from external infiltration.
* A labyrinth seal with lubricating oil as the final stage of protection of the bearing even from dust molecules which may have by-passed the preceding levels of protection.

Examining and Testing
All rollers are subiect to extensive quality control testing and has gone through appropriate standards compliance.

Free from Maintenance
The labyrinth type of inner sealing is manufactured as a lubrication-free device avoiding the need for costly maintenance.

Advantages and Benefits:
1, Solid design for heavy duty roller.
2, Waterproof and dustproof design 
3, Low indicated run out (T.I.R) , good balance, stable operation .
4, Low resistance for start and friction, high efficiency and energy saving.
5, The bearing house and tube are assembled and welded with a concentric automatic welding machine.
6, Cutting of steel tube and shaft is performed with digital auto equipment.
7, Fabrication of roller is effected by an auto device.
8, The conveyor rollers are manufactured accoding to CEMA,ASTM,DIN standard.
9, The conveyor roller is lubricated and free from maintenance.
 

Technical Parameters
Standard Diameter		Length scope ( mm)	Bearings Type (Min~Max)	Idler's Shell Wall Thickness
mm	Inch
63.5	2 1/2	150~3500	204	3.0mm~3.75mm
76	3	150~3500	204 205	3.0mm~4.0mm
89	3 1/3	150~3500	204 205	3.0mm~4.0mm
102	4	150~3500	204 205 305	3.5mm~4.0mm
108	4 1/4	150~3500	204 205 305 306	3.5mm~4.0mm
114	4 1/2	150~3500	205 206 305 306	3.5mm~4.5mm
127	5	150~3500	204 205 305 306	3.5mm~4.5mm
133	5 1/4	150~3500	205 206 207 305 306	3.5mm~4.5mm
140	5 1/2	150~3500	205 206 207 305 306	3.5mm~4.5mm
152	6	150~3500	205 206 207 305 306 307 308	4.0mm~4.5mm
159	6 1/4	150~3500	205 206 207 305 306 307 308	4.0mm~4.5mm
165	6 1/2	150~3500	207 305 306 307 308	4.5mm~6.0mm
177.8	7	150~3500	207 306 307 308 309	4.5mm~6.0mm
190.7	7 1/2	150~3500	207 306 307 308 309	4.5mm~6.0mm
194	7 5/8	150~3500	207 307 308 309 310	4.5mm~6.0mm
219	8 5/8	150~3500	308 309 310	4.5mm~6.0mm

Typical applicatios:Mining---coal, iron ore,gold,Coal process plants,Coal fired power stations,Import/export terminals,Steel plants,Fertilizer plants,Cement plants,Gravel plants,Quarry.

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FAQ

1) Can we get your free samples?
Yes, it is ok. Our Samples are free for the customers. But the freight for express is on buyer's account.

1)How long to get the sample?
After you pay the freight charge and send us confirmed files, the samples will be ready for delivery in 3-7 days. The samples will be sent to you via express and arrive in 3~5 days.

3) Can we combine many items size in one container in my first order?
Yes, it is ok. But the quantity of each ordered item should reach the MOQ for trail order.

4) What is the normal lead time ?
A. For inventory products, we will send goods to you within 7-10 work days after we receive the deposit.
B. For mass production, the delivery time is 25-28 days after we received the deposit
C.For OEM products, the delivery time is 30-35 work days after we receive the deposit.

5) What is your payment term?
T/T 30% advanced before production,70% balance payment before delivery

6) What is your shipping way?
We will help you to choose the best shipping way according to your detail requirements.
By sea, by air, or by express delivery, etc.

7)How is your package?
Normally packed with wooden cases and cartons, other ways can be done according you.

8)How about your quality control?
Our professional QC will check the quality during the production and do thequality test before shipment.