3307BD-2RS Double Row 30° Contact Angle Rubber Sealed Angular Contact Ball Bearing 35×80×34.9mm For Heavy Reducers & Construction Machinery

3307BD-2RS is a double row angular contact ball bearing with BD reinforced internal structure and double-sided 2RS rubber seals, dimension 35×80×34.9mm, 30° large contact angle.

It simultaneously bears heavy radial load and bidirectional axial load with excellent anti-overturning rigidity. The double lip rubber seals effectively block mud, dust and water splashes, perfectly suitable for medium-heavy equipment operating in dusty and humid industrial environments.

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👉 Full technical data and drawings available upon request

• 30° large contact angle BD structure greatly enhances bidirectional axial load capacity and tilting rigidity
• Double row ball arrangement handles combined radial-axial loads, stable under frequent impact loads
• Dual lip 2RS rubber seals isolate dust, metal debris and liquid splashes to extend service life
• Full heat treatment ensures high surface hardness, excellent wear resistance and fatigue life
• Support customized clearance, OEM laser marking and neutral export carton packaging

👉 Helps reduce maintenance cost and improve machine performance

This bearing is widely used in:

• Heavy-duty gear reducers, construction machinery transmission parts
• Large agricultural harvesters and feed processing equipment
• Mining heavy conveyor rollers and mixing machinery
• Industrial water pumps and medium vehicle differential assemblies

👉 Ideal for customers looking for reliable heavy-duty sealed bearing solutions

• 25+ years experience in double row angular contact ball bearing manufacturing
• Full stock of 33 series open / 2RS / ZZ BD structure bearings for fast delivery
• 100% strict dimensional, noise, sealing and load testing before shipment
• Professional technical support reply within 24 hours
• Stable mass supply for machinery factories and overseas spare parts distributors

👉 We focus on quality, reliability, and long-term partnership

• Raw material composition & hardness inspection
• Precision grinding and heat treatment process monitoring
• Contact angle tolerance and load rating calibration test
• 2RS rubber seal dustproof & splash resistance endurance test
• Final anti-rust oil coating and packaging inspection before delivery

👉 Ensuring consistent performance for every bearing

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Looking for reliable heavy load double row sealed angular contact bearing supplier?

👉 Send your inquiry to get:

• Fast quotation within 24 hours
• Engineer one-on-one equipment matching support
• Custom clearance and OEM marking service
• Competitive factory bulk wholesale price

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