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Product Information
LIBO rollers are designed with full sealing to ensure waterproof and dust-proof performance. The bearing assembly uses high-precision bearing chambers and special idler bearings, providing a smooth appearance, low noise, maintenance-free operation, long service life (over 50,000 hours), and high reliability. We have developed controllable braking idlers that effectively address the issue of controlled braking on large downward belt conveyors.

Our Workshop

Parameter Sheet
We provide accurate technical and installation parameters for our standard products to help you make the best choice. If you have any special requirements, please let us know so we can send your needs to our engineers for prompt technical support. Please provide detailed project information, as parameters may vary depending on conditions. We guarantee professional, high-quality products for your satisfaction.

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Company Information
FAQ:
1. What about insurance for goods?
Typically, CIF is arranged by the seller at 110% of the invoice value, covering Free from Particular Average (F.P.A.) under China Insurance Clauses (C.I.C). Additional coverage such as With Particular Average (W.P.A.) or All Risks with War Risks is also available upon request.
2. How do I make payments?
We accept the following payment methods:
1. 30% T/T deposit + 70% sight, confirmed, and irrevocable L/C.
2. 100% sight, confirmed, and irrevocable L/C.
3. 30% T/T deposit + 70% after seeing a copy of the Bill of Lading.
4. Third-party payment through trusted platforms.
5. Other arrangements upon discussion.
3. Can I use express or air transport if needed urgently?
We can arrange express or air transport for urgent orders, although the costs will be borne by the buyer and the order size must be small.
4. Can I get more details about packing and freight?
Yes, you can find detailed information in the "Packing and Freight" section of the product details. You can also contact us via phone, fax, or email for further assistance.
Contact Us
Mobile: +86-15269695872
Fax: +86-538-6925897
Model NO.: dia. 219
Roller Bearing Brand: Domestic and International Leading Brands
Welding: Double-End Circular Seam Automatic Welding
Roller Sealing Type: Low-Resistance Contact Seal
Color: Black, Blue, Red, Green, and More
Packaging: Standard Export Wooden Crates
Brand: Lbhi
Certifications: CE, ISO 9001
Trademark: LBHI
Shipping Package: Standard Export Wooden Crates
Specification: ISO 9001:2008, CE
Origin: China, Shandong
HS Code: 8431390000
Product Information
LIBO rollers are designed with full sealing to ensure waterproof and dust-proof performance. The bearing assembly uses high-precision bearing chambers and special idler bearings, providing a smooth appearance, low noise, maintenance-free operation, long service life (over 50,000 hours), and high reliability. We have developed controllable braking idlers that effectively address the issue of controlled braking on large downward belt conveyors.
No. | Parameter | Description |
1 | Brand | LBHI |
2 | Service Life | Over 50,000 hours |
3 | Production Capacity | 600,000 units per year |
4 | Idler Diameter | 76–219 mm (Custom options available) |
5 | Idler Length | 190 mm to 3500 mm |
6 | Idler Tube | Q235 carbon steel, high-precision ERW, welded according to DIN2394 standard |
7 | Shaft | 45# cold-drawn round steel, compliant with DIN17100 and equivalent standards, ISO h6 precision |
8 | Bearing | Deep groove ball bearing 2RZ and 2Z with C3 clearance |
9 | Bearing Brand | SKF, NSK, HRB, LYC, ZWZ, etc. |
10 | Color | Customizable based on your requirements |
11 | Finish | Ordinary painting, hot galvanized, rubber coating, steel screw, or galvanized |
12 | Welding | Mixed gas shielded arc welding / Automatic CO2 gas shielding welding |
13 | Standards | ISO, BS, JIS, DIN, CEMA, Australia |
14 | Packaging | Standard export wooden crates or iron cages with protective bubble film |
15 | Max Speed | Up to 7 m/s |
16 | Inspection | Professional inspection team |

Product Description | LIBO rollers feature a fully sealed design, offering excellent waterproof and dustproof protection. The bearing system includes high-precision bearing chambers and specialized idler bearings, resulting in a sleek appearance, low noise, maintenance-free operation, long service life (over 50,000 hours), and high reliability. Our controllable braking idlers provide an effective solution for braking systems on large downward conveyor belts. |
Technical Features | 1. Impact idler rubber rings are made from flame-retardant rubber. 2. Bearing housings are stamped parts machined by CNC lathes. 3. Bearings used are KA series special bearings for idlers. 4. High-strength 45# steel is used for bearing shafts, with CNC turning and grinding to ensure precision. 5. Special sealing design provides self-compensation, low resistance, waterproof and dustproof capabilities, keeping bearings well-lubricated for extended periods. |
Certificates | LBHI holds comprehensive quality system certifications, including ISO 9001, ISO 14001, OHSAS 18001, and GB/T 28001. We comply with American, European, and international standards and hold the EN-1090-2 structural steel certificate. With over 250 registered patents, we deliver high-quality products to global customers. |
Packing and Freight | 1. Packing: Standard export wooden crates (9–15 mm thickness) are used, or solid wood crates with fumigation and inspection certificates. 2. Freight: We cooperate with reliable international shipping agencies for timely delivery. Liner shipping is typically used, but we can adjust as needed. For urgent needs, express or air transport is available, though at additional cost and for small quantities. 3. Multimodal transport is also available to ensure on-time delivery via container transport. |
Insurance | Usually CIF at 110% of invoice value, covering Free from Particular Average (F.P.A.) under China Insurance Clauses (C.I.C). Other coverage like With Particular Average (W.P.A.) or All Risks with War Risks is also available upon request. |
Payment Methods | 1. 30% T/T deposit + 70% sight, confirmed, and irrevocable L/C. 2. 100% sight, confirmed, and irrevocable L/C. 3. 30% T/T deposit + 70% after receiving a copy of the Bill of Lading. 4. Third-party payment through trusted platforms. 5. Other arrangements upon discussion. |

Our Workshop

Parameter Sheet
We provide accurate technical and installation parameters for our standard products to help you make the best choice. If you have any special requirements, please let us know so we can send your needs to our engineers for prompt technical support. Please provide detailed project information, as parameters may vary depending on conditions. We guarantee professional, high-quality products for your satisfaction.

More Products
Explore more products with our best wishes.

Company Information
Company Information | LIBO Heavy Industry Science & Technology Co., Ltd. is located at the foot of Mount Tai, and is a state-level high-tech enterprise integrating production, research, and development. We specialize in the development and manufacturing of complete sets and key components for bulk material handling, especially belt conveyors and stacker-reclaimers used in circular stockyards. With a registered capital of ¥119.6 million, we are one of the largest companies in the bulk materials handling industry, offering advanced technical equipment and comprehensive services. |
Technical Performance | With over 800 employees, including 244 engineers, we have 109 R&D personnel, 66 sales engineers, and 69 welding, equipment, process, and QC engineers to ensure top-tier production and quality control. |
Overseas Partners | LBHI is recognized globally for its high-performance products and environmentally friendly production methods. These qualities make LBHI a preferred supplier and reliable business partner for many companies worldwide. |
1. What about insurance for goods?
Typically, CIF is arranged by the seller at 110% of the invoice value, covering Free from Particular Average (F.P.A.) under China Insurance Clauses (C.I.C). Additional coverage such as With Particular Average (W.P.A.) or All Risks with War Risks is also available upon request.
2. How do I make payments?
We accept the following payment methods:
1. 30% T/T deposit + 70% sight, confirmed, and irrevocable L/C.
2. 100% sight, confirmed, and irrevocable L/C.
3. 30% T/T deposit + 70% after seeing a copy of the Bill of Lading.
4. Third-party payment through trusted platforms.
5. Other arrangements upon discussion.
3. Can I use express or air transport if needed urgently?
We can arrange express or air transport for urgent orders, although the costs will be borne by the buyer and the order size must be small.
4. Can I get more details about packing and freight?
Yes, you can find detailed information in the "Packing and Freight" section of the product details. You can also contact us via phone, fax, or email for further assistance.
Contact Us
Mobile: +86-15269695872
Fax: +86-538-6925897
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