NSK 3307 ZZ/TNG C3 35x80x34.9 mm Angular Contact Ball Bearing

Design & Technical Features

The NSK 3307 ZZ/TNG C3 is a high-performance double-row angular contact ball bearing, designed with bore 35 mm, outer diameter 80 mm and width 34.9 mm. The suffix “ZZ” signifies metal shields on both sides, TNG denotes a glass-fibre reinforced polyamide cage, and “C3” refers to increased internal clearance, enhancing tolerance to thermal expansion and high-speed operation. Its angular contact geometry enables efficient handling of both radial and axial loads, making it ideal for demanding industrial applications where high durability and precision are required.

Applications & Industrial Benefits

This bearing is suited for heavy-duty equipment such as gearboxes, machine tools, compressors and high-speed shafts. Key benefits for B2B users include:

• Reliable dual-directional load capacity (radial + axial) in one bearing unit.

• Shielded design (ZZ) protects against contaminants, extending working life under harsh conditions.

• C3 internal clearance and robust cage support higher speeds and elevated temperatures, reducing downtime and maintenance.

• Standard dimension (35x80x34.9 mm) simplifies procurement and stock management for maintenance departments.

Specification Outline

• Type: Angular contact ball bearing, double-row

• Bore (d): 35 mm

• Outer diameter (D): 80 mm

• Width (B): 34.9 mm

• Shields: Both sides (ZZ)

• Cage: TNG (glass-fibre reinforced polyamide)

• Internal clearance: C3 - increased

• Primary use: Industrial drives, shafts, high-load mechanical systems

• Core benefits: Precision, durability, efficient installation

FAQ

Q1: What load types can this angular contact bearing support?
A1: It supports both radial and axial loads simultaneously thanks to its angular contact design, making it suitable for industrial drive systems requiring complex load handling.
Q2: How does the “C3” internal clearance affect performance?
A2: The larger C3 clearance accommodates thermal growth, vibration and high-speed operation, increasing bearing longevity and reliability.
Q3: Why choose “ZZ” shielding and TNG cage?
A3: “ZZ” metal shields help exclude dirt and moisture; the TNG cage made of reinforced polyamide provides high strength at lower weight, enhancing performance under industrial stress.
Q4: Is this bearing appropriate for high-speed manufacturing machinery?
A4: Yes — the design supports high rotational speeds and dynamic loads typical for production-line drives, compressors and gearboxes.
Q5: How does this bearing support B2B procurement and maintenance?
A5: Its standard sizing, enhanced durability and industrial grade specification reduce stock variety, streamline maintenance logistics and help control operational costs.