JB982 Arruelas de vedação hidráulicas de borracha e metal
Principais características
Integrated Metal and Rubber Construction
The bonded design combines the metal ring and rubber sealing element into one component for easy installation and reduced risk of displacement during assembly.
Reliable Pressure and Oil Sealing
Designed for hydraulic ports and threaded connections, providing stable sealing performance in suitable pressure and operating conditions.
Multiple Material Options
Available in different metal and elastomer combinations to suit applications involving hydraulic oils, water, and selected chemical media, subject to material compatibility.
Wide Size Availability
Standard sizes are available in both metric and imperial dimensions, including M-series sizes. Custom dimensions can also be manufactured upon request.
A bonded seal also known as a rubber-to-metal bonded washer, is a composite sealing component made of a metal washer and an integrated rubber sealing element.
The metal washer provides structural support, while the rubber element compresses during installation to create a reliable sealing contact around bolts, threaded plugs, and fluid connections, helping prevent leakage of oils and other compatible media.
Bonded seals feature reliable sealing performance, easy installation, and a compact design. They are widely used in hydraulic systems, pipe connections, pumps, valves, automotive components, and industrial machinery.
Available with different rubber compounds, including NBR, FKM, and EPDM, and metal options such as carbon steel and stainless steel, bonded seals can be customized to meet specific operating pressure, temperature, and media requirements.
Metal Materials:
Carbon Steel
Zinc Plated Carbon Steel
304 Stainless Steel
316 Stainless Steel
Bronze
Copper
Rubber and Sealing Materials:
NBR (Borracha Nitrílica)
FKM (Fluoroelastômero)
EPDM (Monômero de Etileno Propileno Dieno)
HNBR (Hydrogenated Nitrile Rubber)
PTFE (Polytetrafluoroethylene)
Custom Material Selection
We provide flexible material options for bonded seals, including carbon steel, zinc plated steel, stainless steel, bronze, and copper, combined with NBR, FKM, EPDM, HNBR, or PTFE sealing materials. Custom combinations can be evaluated according to your application, operating temperature, sealing medium, and installation requirements.
Especificações técnicas
Item
Especificação
Nome do produto
Bonded Seal
Alternative Name
Bonded Washer
Estrutura
Metal Washer with Integrated Rubber Sealing Element
Integrated Metal and Rubber Construction: The bonded design combines the metal ring and rubber sealing element into one component for convenient installation and reduced risk of displacement.
Desempenho de vedação confiável: The compressed rubber element helps prevent fluid leakage at threaded and bolted connections.
Oil and Pressure Resistance: Designed for hydraulic sealing applications under suitable operating pressure and installation conditions.
Diversas opções de materiais: Available with NBR, FKM, and VMQ rubber compounds and various metal ring materials.
Flexible Size Options: Metric M-series, imperial, and custom dimensions are available.
Bonded Seal Size Chart / Dowty Washer Specification Table
Modelo
I.D d (mm)
O.D D (mm)
Thickness h
Applicable Thread
4
4.3
9
1
Non-standard
5
5
9
1.5
Non-standard
6 (Thin)
6
10
1
Non-standard
6
6.4
12
2
M6
8
8.4
14
2
M8
10
10.4
16
2
M10(G1/8)
12
12.4
18
2
M12
13
13.2
20
2
Non-standard
14
14.4
20
2
M14(G1/4)
15
15.2
23
2
Non-standard
16
16.4
22
2
M16
17
17.2
25
2
Non-standard
18
18.4
25
2
M18(G3/8)
20
20.5
28
2
M20
21
21.2
30
2
Non-standard
22
22.5
30
2
M22(G1/2)
24
24.5
32
2
M24
26
26.5
35
2
Non-standard
27
27.5
38
2
M27(G3/4)
30
30.5
38
2
M30
33
33.5
42
2
M33(G1)
36
36.6
46
2
M36
39
39.6
50
2
M39
42
42.6
53
2
M42(G1-1/4)
45
45.6
56
2
M45
48
48.7
60
2
M48(G1-1/2)
52
52.7
66
2
M52
60
60.7
75
2
M60(G2)
Aplicações
JB982 Hydraulic Bonded Seals are commonly used in:
Hydraulic Systems and Hydraulic Lines
Hydraulic Fittings and Threaded Connections
Threaded Plugs and Fluid Ports
Pumps, Valves, and Fluid Control Equipment
Industrial Machinery and Automation Equipment
Automotive and Construction Machinery
Why Choose Jinnai Seal?
Vantagem de preço:Direct‑from‑factory pricing without middle‑man markup.Tiered volume pricing to help you cut overall procurement costs.
After‑Sales Warranty:Defective products can be returned or exchanged free of charge within 14‑30 days upon receipt.We provide professional technical support for sealing solution consultation.
Garantia de Qualidade:Internationally certified products with outstanding durability.
Strict production control to meet standard dimensional tolerances.
Compliant with RoHS, IATF16949 and other relevant industrial standards.
Rica experiência no setor:15‑year professional rubber sealing processing experience.
Support standard stock items & custom O‑rings per your drawings or samples.
Serving global industrial clients from hydraulic, automotive, machinery and other sectors.
One-stop industry seals
Perguntas frequentes
What is the difference between a Bonded Washer and a Dowty Washer?
Bonded Washer is a general term for metal-and-rubber composite sealing washers. Dowty Washer commonly refers to a particular style of bonded sealing washer. The actual construction should be verified against the product design.
Quais materiais de borracha estão disponíveis?
Common options include NBR, FKM, and VMQ. The appropriate material depends on the operating temperature and sealing medium.
What metal materials are available?
Available options include zinc-plated carbon steel, copper, 304 stainless steel, and 316 stainless steel.
Are metric and imperial sizes available?
Yes. We offer metric M-series, imperial, and custom dimensions.
What Is JB982 Bonded Seal Standard?
JB982, officially designated as JB/T 982-1977, is a Chinese mechanical industry standard for combined sealing washers, also known as bonded seals.
It specifies the product construction, dimensions, and relevant technical requirements for this type of sealing washer. It is a product standard, not a rubber material standard.
JB982 bonded seals are designed for sealing applications in mechanical and fluid connection systems. The rubber sealing element and metal washer work together to provide sealing contact and structural support.
