NSK 3206 B TNG C3 Angular Contact Ball Bearing 30x62x23.8 mm

Application Spectrum

The NSK 3206 B TNG C3 angular contact ball bearing is a high-precision double-row design optimized for applications demanding combined radial and axial load handling. With nominal dimensions of 30 mm bore x 62 mm outer diameter x 23.8 mm width, this bearing serves industries such as automation, machine tools, industrial gearboxes, and high-speed drive systems. Key search phrases in English include “angular contact ball bearing 30x62x23.8”, “NSK 3206 B TNG C3”, “double row angular contact bearing”, and “industrial angular contact bearing”.
The “B” designation indicates a standard contact angle (commonly 25° for BTNG series) and the “TNG” suffix denotes a glass-fibre reinforced polyamide cage. The “C3” indicates greater internal clearance which supports operation under thermal expansion or variable shaft/housing conditions.

Key Advantages & Technical Profile

• Double-row angular contact design - built to support both axial and radial loads simultaneously through a single bearing, decreasing assembly costs and simplifying the bearing configuration.
• Increased internal clearance C3 - allows thermal expansion and is beneficial in high-speed or elevated-temperature applications, reducing risk of seizure or undue pre-load.
• Precision cage (TNG) - the glass-fibre reinforced polyamide cage offers low friction, lightweight construction, and supports high-RPM performance while maintaining structural integrity.
• Compact size 30x62x23.8 mm - suitable for machine spindles, housings, or assemblies where high performance and minimal footprint are required.
• Brand reliability (NSK) - recognized global manufacturer of bearings with strong engineering pedigree, guaranteeing consistent quality and long service life.

Technical Specifications

• Manufacturer: NSK

• Model: 3206 B TNG C3

• Type: Angular Contact Ball Bearing - double row

• Bore (d): 30 mm

• Outer diameter (D): 62 mm

• Width (B): 23.8 mm

• Contact angle: approx. 25° (series BTNG)

• Internal clearance: C3 (greater than normal)

• Cage: Glass-fibre reinforced polyamide (TNG)

• Typical applications: machine tools, spindles, drive units, industrial automation, high-speed assemblies

• Search terms: “30 x 62 x 23.8 bearing”, “NSK 3206 BTNG C3”, “angular contact ball bearing double row 30x62x23.8”, “industrial angular contact bearing NSK”.

FAQ (Frequently Asked Questions)

Q1: What differentiates an angular contact ball bearing from a deep-groove ball bearing?
A1: Angular contact bearings are designed to carry significant axial load in one or both directions in addition to radial load, thanks to their contact angle. Deep-groove bearings primarily handle radial loads with limited axial capacity.

Q2: What does the ‘C3’ clearance mean and why is it important?
A2: C3 indicates a greater internal radial clearance than standard (C0/CN). This extra clearance accommodates thermal expansion, shaft deflection, and high-speed rotation, safeguarding the bearing from premature failure.

Q3: When should the TNG cage variant be chosen?
A3: The TNG cage (fabric-reinforced polyamide) is ideal for high-speed, precision machinery where low friction, stable cage behaviour, and reduced inertia are required. It provides elevated performance vs. standard steel cages.

Q4: Is this bearing suitable for industrial machine spindles?
A4: Yes - its 30x62x23.8 mm dimensions, double-row configuration and precision design make it well-suited for spindles, gear units and high-speed drive systems in industrial applications.

Q5: What benefits does a double-row angular contact bearing offer in B2B procurement?
A5: By combining radial and axial load capacity in one unit, it reduces the need for paired bearings or complex mounting arrangements, simplifies inventory, and supports high-performance machines—ideal for maintenance and industrial procurement.