NSK 6307 2RS 35x80x21 Deep Groove Ball Bearing

Main Description:

The NSK 6307 2RS 35x80x21 Deep Groove Ball Bearing is a single-row deep groove ball bearing designed for demanding industrial environments. With inner diameter 35 mm, outer diameter 80 mm, and width 21 mm, it matches standard shaft sizes while offering enhanced features that support reliability, performance and long life. The “2RS” designation signals rubber seals on both sides, delivering protection against dust, contaminants and moisture—critical in industrial equipment.

Key search phrases for the Polish market include “łożysko kulkowe 35x80x21”, “6307 2RS NSK”, “uszczelnione łożysko kulkowe przemysłowe” and “łożysko kulkowe gotowe do montażu”. These align with user intent focused on durability, ready installation and application in production systems. The bearing excels as part of a bearing unit (jednostka łożyskowa) or when mounted in a suitable bearing housing (obudowa łożyskowa), supporting seamless integration into drive systems, motors, conveyors and gearboxes.

From a procurement perspective for B2B clients, this bearing offers simplicity: you receive a ready-to-mount component with high reliability, which supports uptime, reduces maintenance and streamlines logistics. The deep groove design is well-suited for radial loads and moderate axial loads, with low friction and stable running performance—making the component ideal for applications where “wysoka trwałość” is essential. Its sealed design further reduces contamination risk and extends service life in industrial conditions.

Technical Specifications & Advantages:

• Bore (d): 35 mm - fits shafts of that nominal diameter.

• Outer diameter (D): 80 mm - compatible with many standard housings.

• Width (B): 21 mm - compact profile for constrained spaces while delivering robust performance.

• Bearing type: deep groove ball bearing - reliable for both radial and moderate axial loads.

• Seals 2RS: rubber seals both sides - protect against ingress and extend life.

• High durability: design supports long duty cycles and heavy use in industrial applications.

• Ready unit: when mounted in an appropriate housing or as part of a unitised solution, offers rapid installation and reduced downtime.

• Industrial focus: aligns with key terms like “industrial applications”, “ball bearing”, “high durability” and “bearing unit”.

Installation, Maintenance & Supply-Chain Readiness:

Proper installation requires clean shaft and housing surfaces, correct tolerances and appropriate lubrication to maximize life. The sealed variant reduces down-time risk due to contamination, making this bearing well-suited for production floor, conveyor lines, motor drives and similar machinery. For maintenance and procurement teams, the availability of this bearing, plus rapid dispatch, represents a significant competitive advantage—supporting continuity and helping avoid unplanned stoppages.

FAQ:
Q1: Is the NSK 6307 2RS suitable for a shaft diameter of 35 mm?
A1: Yes — the internal bore is 35 mm, so it fits shafts of that nominal size and is designed for industrial applications requiring reliable ball bearing support.
Q2: What does the suffix “2RS” mean in the bearing designation?
A2: “2RS” indicates there are rubber contact seals on both sides of the bearing, providing protection from dust and moisture and enhancing durability in industrial environments.
Q3: Can this bearing handle axial loads or is it only radial?
A3: The deep groove ball bearing design is primarily for radial loads but also handles moderate axial loads in both directions, making it versatile in many industrial applications.
Q4: Is this bearing delivered as part of a bearing housing or unitised module?
A4: This product is the bearing element itself. It can be mounted within a bearing housing or configured into a bearing unit depending on application requirements.
Q5: How quickly can I get this bearing for production use?
A5: The bearing is in stock and available for rapid dispatch, supporting fast supply-chain turnaround for B2B clients.