Basic Info.
Application
Chemical Industry, Grain Transportation, Mining Transport, Power Plant, Metallurgy
Structure
Ordinary Roller
Bearing Type
Open Bearing
Type
Grooved Conveyor Idler
Bearing
SKF/ NSK/Hrb/Lyc/Zwz
Working Life
1 Year Under Normal Working Condition
Seal Type
Non-Contact Labyrinth Seal Structure
Testing
Water-Proof and Dust-Proof
Shaft
45# Cold Drawing Round Steel
Welding
Mixed Gas Shielded Arc Welding End
Executive Standard
GB, ISO, Cema, DIN, JIS, etc
Transport Package
Plywood Case
Product Description
Structure of the roller
Roller is assembled with shaft, shell, housing, in seal, bearing, labyrinth seal, cover, protective cover and circlip
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 diameter | Wall thickness | Wall thickness difference |
Normal | High level | Normal | High level |
63.5 | 3.2 | 4.76 | ±0.50 | ±0.30 | ±0.32 | ±0.24 | ≤7.5% |
4.5 | 6.55 | ±0.45 | ±0.34 |
76.0 | 3.2 | 5.74 | ±0.50 | ±0.30 | ±0.32 | ±0.24 |
4.5 | 7.93 | ±0.45 | ±0.34 |
89.0 | 3.2 | 6.77 | ±0.60 | ±0.40 | ±0.32 | ±0.24 |
4.5 | 9.38 | ±0.45 | ±0.34 |
108.0 | 3.2 | 8.27 | ±0.70 | ±0.40 | ±0.32 | ±0.24 |
4.5 | 11.49 | ±0.45 | ±0.34 |
133.0 | 4.5 | 14.26 | ±0.80 | ±0.60 | ±0.45 | ±0.34 |
5.0 | 15.78 | ±0.50 | ±0.38 |
159.0 | 4.5 | 17.14 | ±0.90 | ±0.60 | ±0.45 | ±0.34 |
5.0 | 18.99 | ±0.50 | ±0.38 |
6.0 | 22.64 | ±0.60 | ±0.45 |
194.0 | 5.0 | 23.30 | ±1.0 | ±0.80 | ±0.50 | ±0.38 |
6.0 | 27.32 | ±0.60 | ±0.45 |
219.0 | 5.0 | 26.39 | ±1.1 | ±0.80 | ±0.50 | ±0.38 |
6.0 | 31.52 | ±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 productionCutting 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) | 0.32 | 0.36 | 0.4 | 0.44 | 0.5 | 0.56 | 0.66 | 0.78 |
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 | 100-160 | 160-250 |
Tolerance(mm) | 0.15 | 0.20 | 0.25 |
Diameter tolerance of installing stop of the bearing housing should conform tolerance level H9, for size requirements please see the sheet below.
Size(mm) | 50-80 | 80-120 | 120-180 | 180-250 |
Tolerance(mm) | 0-0.074 | 0-0.087 | 0-0.10 | 0-0.115 |
Depth tolerance on one end of installing stop of bearing housing should be processed and checked on standard 0-0.2mm. Space distance tolerance of bearing housing stop should be in the range of 0-0.2mm. Roughness on processing part of the tube should be checked on 6.3-3.2μm(max value of Ra) without any bur.
Roller Specification:NO. | Standard Diameter | Length Scope (mm) | Bearings Type Min~Max | Idler's Shell Wall Thickness |
| mm | Inch | | | |
1 | 63.5 | 2 1/2 | 150-3500 | 203 204 | 3.0mm~4.0 mm | |
2 | 76 | 3 | | 204 | 3.0mm~4.5 mm | |
3 | 89 | 3 1/3 | | 204 205 | 3.0mm~4.5 mm | |
4 | 102 | 4 | | 204 205 206 305 | 3.2mm~4.5 mm | |
5 | 108 | 4 1/4 | | 204 205 206 305 306 | 3.5mm~4.5 mm | |
6 | 114 | 4 1/2 | | 204 205 206 305 306 | 3.5mm~4.5 mm | |
7 | 127 | 5 | | 204 205 206 305 306 | 3.5mm~5.0 mm | |
8 | 133 | 5 1/4 | | 204 205 206 207 305 306 | 3.5mm~5.0 mm | |
9 | 140 | 5 1/2 | | 205 206 207 305 306 307 | 3.5mm~5.0 mm | |
10 | 152 | 6 | | 205 206 207 305 306 307 308 | 4.0mm~5.0 mm | |
11 | 159 | 6 1/4 | | 205 206 207 305 306 307 308 | 4.0mm~5.0 mm | |
12 | 165 | 6 1/2 | | 206 207 305 306 307 308 | 4.5mm~6.0 mm | |
13 | 177.8 | 7 | | 207 306 307 308 309 | 4.5mm~6.0 mm | |
14 | 190.7 | 7 1/2 | | 207 306 307 308 309 310 | 4.5mm~7.0 mm | |
15 | 194 | 7 5/8 | | 207 306 307 308 309 310 | 4.5mm~8.0 mm | |
16 | 219 | 8 5/8 | | 308 309 310 312 | 4.5mm~8.0 mm | |
Address:
Zhenggang Development Zone, Yanshan County, Cangzhou City, Hebei Province, Cangzhou, Hebei, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components, Metallurgy, Mineral & Energy
Company Introduction:
Hebei ShuangHuan Conveying Equipment Manufacturing Co., Ltd. is founded in 1994, the founder is engaged in the production and design belt conveyor since 1975. And then we establish our own factory, start to produce conveyor roller, starting from the simple carry roller, step by step, we can produce all kinds rollers and idlers...At the same time, we began to produce the pulley, we can produce different type of pulley as customer requirements now.
SH has professional production workshops and modern production lines. Covering an area of more than 60, 000 square meters, with the registered capital of more than USD1, 788, 000.
For more than 20 years, SH mainly engaged in designing and manufacturing bulk conveying systems and equipment, we are specialize in gravity conveyor. Roller and pulley. SH products are widely used in mining, coal, port, power station, building and metallurgy, etc.
Because of rich production experience, SH has exported to Italy, Germany, Hungary, America, Holland, Chile, Tunisia, Malaysia, Vietnam, Philippines, Indonesia, Pakistan and other countries.
In order to keep the quality, we strictly follow ISO standard and GB standard, From the raw material purchase to the production, from the surface painting to the packaging, we all have experienced managers to supervise the inspection.
SH will continue to do well, stable quality, reasonable price, fast delivery time, and good after-sales service. We will provide professional and timely technical support and services to users in our cooperation.
Welcome you to visit our company and looking forward to cooperate with you in the future.
Thanks & Best Wishes