NSK Deep groove ball bearing

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Product Introduction

NSK deep groove ball bearings are the most versatile single-row rolling bearings. The inner and outer rings have continuous arc-shaped deep groove raceways, which can bear both large radial loads and bidirectional axial loads. They have small friction torque, high limit speed, low operating noise, and are suitable for high-speed and smooth operation conditions.

The product line is divided into open type, steel plate dust cover ZZ type, non-contact rubber seal VV type, contact rubber seal DDU type, with outer ring stop ring and other structures. The ZZ steel plate dust cover can only block dry dust and is not waterproof; the VV non-contact seal has excellent high-speed performance; the DDU contact rubber seal ring has the best dust-proof and waterproof effect. The sealed model is pre-filled with long-lasting grease at the factory, which can achieve long-term maintenance-free operation under normal working conditions and reduce subsequent maintenance costs.

The cage comes standard with a high-strength steel plate stamped cage; large-size bearings and high-speed special models can choose brass solid cages and polyamide engineering plastic cages. The resin cage has lower temperature rise and better high-speed operation stability. The NSKHPS high-performance series optimizes the internal raceway structure, and its rated load and fatigue life are significantly improved compared to the standard model, making it suitable for long-term 24-hour uninterrupted operation of equipment.

The bearings are made of ultra-high purity bearing steel, and the raceways are ultra-precision ground to effectively reduce vibration and noise. The clearance specifications are complete, including standard CN clearance, special clearance for CM motors, and C3 and C4 increased clearances, which are suitable for different working conditions such as motors and high-temperature shaft elongation. Special variants such as stainless steel corrosion-resistant versions and hybrid ceramic insulated bearings are also available to meet special needs such as moisture corrosion and variable frequency motor anti-electrical corrosion. The products are highly interchangeable and are easy to stock, replace and install.

Complete model examples: 6208, 6310ZZ, 6212DDU, 6309‑C3.

Typical application scenarios: general rotating support parts such as various industrial motors, servo motors, fans, water pumps, reducers, compressors, auto parts, conveying equipment, textile machinery, household appliances, automation equipment, etc.

Product Parameters

Bearing categories	Product sub-series	Series features	Commonly used representative models
Ultra-thin narrow-section series for compact space and high-speed micro working conditions	6800 series (ultra-ultra-thin)	The cross-section height is the smallest, suitable for installation in areas with extremely limited space, such as motors and precision instruments.	6808, 6810, 6812, 6815ZZ, 6820DDU
	6900 series (thin-walled and lightweight)	Narrow cross-section and thin-walled model, excellent high-speed performance, automation equipment, small fans	6908ZZ, 6910VV, 6912DDU, 6915
The lightweight standard series has moderate outer diameter and balanced load.	6000 series	The width is small, the rotation speed is high, and the friction is low. The most commonly used general model for motors and water pumps.	6008, 6010ZZ, 6012DDU, 6015-C3
The medium-sized main circulation series has the largest shipment volume on the market and has moderate radial load.	6200 series	Common industrial main specifications, good size-load-speed balance, sufficient stocking	6208, 6210ZZ, 6212DDU, 6215, 6220CM
The heavy-load widened series has strong carrying capacity and is resistant to impact conditions.	6300 series	The raceway is widened, the rated load is greatly increased, reducers, compressors, and conveying equipment	6308, 6310ZZ, 6312DDU, 6315-C3
Ultra-large load thickened series heavy load low speed working conditions	6400 series	It has the largest outer diameter and width and can withstand higher radial loads.	6408, 6410, 6412
NSKHPS high performance long life series	6200‑& Series	Optimized internal raceways, increased rated load, extended fatigue life, suitable for 24-hour continuous operation	6210-&, 6312-&-C3
Positioning version with stop groove on outer ring	‑N /‑NR suffix series	The outer ring is machined with a stop groove; NR comes with a stop ring and does not require additional axial end cover positioning.	6208N, 6210NR, 6312NR
Stainless steel corrosion resistance series	S6200/S6300 series	Made of stainless steel, rust-proof and moisture-resistant, suitable for food and water environment equipment	S6208DDU, S6210ZZ

Packaging and shipping

OUR WAREHOUSE

We specialize in providing forklift bearings, deep groove ball bearings, self-aligning ball bearings, self-aligning roller bearings, cylindrical roller bearings, tapered roller bearings, wheel hub bearings, agricultural machinery bearings, etc.