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NBR Rubber Bellows

NBR Rubber Bellows

Custom moulded by Xiamen Better Silicone Rubber Co., Ltd. Made to your drawing, 3D model or sample.

ModelBT-RB
Category
Rubber Bellows
Lead time
Quoted with the part
Tooling
Designed and cut in house
Also searched as:NBR BellowsNBR Rubber Expansion Jointnitrile bellowsbuna n bellows

Product description

NBR Rubber Bellows

NBR Rubber Bellow, also call Nitrile & Buna n Bellows, which mainly used as a protective cover expansion joints & boots to maintain inner equipment preformance, especially, oil-proof performance. Elastomer NBR Bellows mainly made by silicone rubber compression molding, extrusion moulding or rubber injection moulding.
NBR Rubber Bellows
NBR Rubber Bellows Advantage:
1. Excellent Oil-proof:  Excellent oil resistance after polysulfide rubber, acrylate and FKM
2. High tensile strength and wear resistance.
3. Good Heat Resistance:  Working Temperature -35oC-110oC. (Short-period working: 120oC)
4. Good air tightness
5. Strong Adhesion

NBR Rubber Bellows Disadvantage:
1. Poor ozone resistance, against storage 
2. Poor electrical property
3. No resistance to aromatic solvents, halogenated hydrocarbon solvents and ketones & esters solvents
4. Low elasticity
NBR Rubber Expansion Joint
NBR Rubber Bellows Main Struction and Shape
nitrile bellows

Straight Convolution Nitrile Rubber Bellows
nitrile nbr bellows
Tapered Rubber Bellows
Metal NBR Bellows
Metal + Rubber Overmolded Bellows
buna n rubber bellows
Rubber Bellows with Clamping, Holes & Locks

Rubber Bellows Main Materials

Material Abbreviation Temperature Range Aging Weathering Ozone Resistance to Oil & Grease Water Swell Resistance  Flex-Fatigue Economy of Material Material Notes
Chloroprene(Neoprene) CR -40F to 250F Good Good Average Very Good Good exposure to refrigerants,can be compounded for FDA applications
Nitrile NBR -22F to 212F Poor Very Good Good Good Very Good Automotive Applications, Good Oil Proof
Ethylence-Propylene EPDM,EPM -60F to 300F Very Good Poor Very Good Good Very Good Outside Applications, Good Weather Proof
Silicone VMQ -75F to 450F Very Good Average Very Good Very Good Average Medical Applications
Fluo Rubber FKM 5F   to 390F Very Good Very Good Good Average Poor Rubber King, Widely Applications

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