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Corrente de rolos com topo de borracha 08B-G2

A corrente de rolos com revestimento de borracha 08B-G2 é um tipo de corrente comumente usada em máquinas industriais. Correntes de rolos são utilizadas para transmitir potência entre eixos rotativos, e o tamanho 08B é uma designação comum para uma corrente com passo (distância entre os centros dos rolos) de 1 polegada. O "G2" no nome indica que esta corrente com revestimento de borracha possui uma construção de dupla camada, ou seja, dois conjuntos paralelos de rolos e placas de ligação lado a lado. A principal característica da corrente de rolos com revestimento de borracha 08B-G2 é o revestimento de borracha aplicado na parte superior dos rolos. Esse revestimento proporciona maior aderência e melhor resistência ao desgaste, tornando a corrente de rolos com revestimento de borracha 08B-G2 ideal para aplicações onde deslizamento ou alongamento podem ser um problema.

REF: 311307 Categoria:

Descrição

Double-strand · ISO 08B
In stock

08B-G2 Rubber Top Chain

Double-strand ISO 08B roller chain with vulcanised rubber top pad · 12.7 mm pitch · 32.0 kN tensile strength · Carbon steel and stainless steel · NBR / NR rubber grades available

12.7
Passo (mm)
32.0
Tensile strength (kN)
2.07
Peso (kg/m)
×2
Strength vs G1 (single)

Dimensões

Chain no. Pitch P (mm) Roller dia. d1 (mm) Inner width b1 (mm) Pin dia. d2 (mm) Pin length L (mm) Plate ht. h2 (mm) Plate thick. T (mm) Tensile Q (kN / lbf) Peso (kg/m)
08B-G2 12.700 8.51 7.75 4.45 34.3 11.80 1.50 32.0 / 7,273 2.07
Attachment plate dims (mm):  A = 28.40  ·  B = 24.20  ·  H = 12.3

Dimensões da corrente superior de borracha 08B-G2

Materials and options

Chain steel Alloy steel (45Mn, 42CrMo, 20CrMo) · Stainless steel (SS304, SS316)
Composto de borracha NBR (nitrile — oil resistant) · NR (natural rubber — high grip)
Shore hardness 65–75 Shore A (standard) · 75–85 Shore A (hard grade)
Tratamento de superfície Shot peening · Blackening · Bluing · Zinc-plated · Nickel-plated · Polishing
Padrão de projeto ISO 606 · DIN 8187 · Customer drawings accepted
Characteristics Fire resistant · Oil resistant · Heat resistant
Certificação ISO 9001:2008
Embalagem Wooden case / pallet / container · OEM packaging available
Sample lead time 20 days
Bulk order lead time 45 days

What is the 08B-G2?

08B = ISO series, 12.7 mm (½″) pitch — the most widely stocked size globally, meaning matching sprockets are readily available. G = rubber top attachment. 2 = double-strand construction: two parallel rows of link plates and rollers on shared pins, delivering roughly twice the tensile strength of the 08B-G1 single-strand variant.

Corrente com topo de borracha 08B-G2 Corrente de rolos com topo de borracha 08B-G2The rubber top pad is vulcanised directly onto the outer plate of each link, projecting above the pitch line to contact the load or conveyed object. NBR is the default for oil and grease resistance; NR offers superior resilience on dry surfaces. Both compounds come in two hardness grades, allowing engineers to tune friction coefficient and compression set to their specific application.

We manufacture this chain from alloy steel as standard, with stainless steel (SS304 / SS316) available for washdown, food-grade, or corrosive environments. All steel stock carries mill certificates traceable to heat number.

Key advantages

▶ Enhanced grip

Vulcanised rubber surface increases friction against conveyed goods, eliminating slip on inclined or variable-speed runs.

▶ Noise reduction

Rubber absorbs impact at every link engagement — typically 3–8 dB quieter than bare steel chains. Essential for food, pharma, and packaging lines.

▶ Lower wear rate

Pad cushions contact forces, reducing surface scoring on both chain and product, extending maintenance intervals and lowering total cost of ownership.

▶ Double-strand strength

Two parallel strands on shared pins deliver 32.0 kN minimum tensile — suitable for shock-loaded systems and heavy conveying applications.

▶ Contamination resistance

Rubber top shields outer plates from dust, wood chips, and moisture ingress — proven in woodworking, plywood production, and outdoor installations.

▶ Material flexibility

Alloy or stainless steel, NBR or NR rubber, two hardness grades — fully configurable to your duty and environment. OEM specifications accepted.

Aplicações típicas

🌳
Wood and plywood processing
Grips board edges on feeder conveyors without surface marking. The most common corrente superior de borracha application worldwide.
📦
Food and beverage packaging
FDA-compatible rubber grades available. Quiet operation meets noise regulations; smooth running surface easy to clean between product runs.
💉
Medical device assembly
Low vibration and particle-free rubber formulations keep assembly environments clean. Ideal for semi-clean-room adjacent conveying.
🌾
Agricultural and outdoor equipment
Weather-resistant rubber protects the chain in high-dust, high-humidity harvest environments; stainless option prevents outer plate rust.
General light manufacturing conveyors
Replaces belt-over-chain solutions where belt tracking is unreliable or contamination from rubber crumb is not acceptable.

Engrenagens correspondentes

Use standard 08B double-strand (duplex) sprockets with a 12.7 mm (½″) pitch. Key parameters to verify before ordering:

Pitch: 12.7 mm (½″)
Strand: double (duplex)
Profile: ISO 606 / DIN 8187
Tooth count: 9T–120T available
Material: carbon steel · cast iron · SS

We stock and manufacture matching 08B duplex sprockets bored to your shaft size and keyway dimensions. Contact us with tooth count and shaft diameter for a combined chain-and-sprocket quotation.

Our quality process

1
Material cert check
2
Pin hardness QC
3
Rubber bonding pull test
4
Pre-load running
5
Final inspection report

Rodas dentadas com topo de borracha 08B-G2 para corrente com topo de borracha 08B-G2

Ready to order or need a custom spec?
Send us pitch · strand count · length · rubber grade · steel spec — we quote within 24 hours.

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editado por gzl