Full Series Thin Section Bearings

Product Model	Material	Inner Diameter (mm)	Outer Diameter (mm)	Thickness (mm)	Seal Type	Precision Grade
6705ZZ	GCr15	25	32	4	ZZ	P6
6706ZZ	GCr15	30	37	4	ZZ	P6
6805ZZ	GCr15	25	37	7	ZZ	P6
6704ZZ	GCr15	20	27	4	ZZ	P6
6804ZZ	GCr15	20	32	7	ZZ	P6
6905ZZ	GCr15	25	42	9	ZZ	P6
6806ZZ	GCr15	30	42	7	ZZ	P6
6708ZZ	GCr15	40	50	6	ZZ	P6
6703ZZ	GCr15	17	23	4	ZZ	P6
6803ZZ	GCr15	17	26	5	ZZ	P6
6904ZZ	GCr15	20	37	9	ZZ	P6
6802ZZ	GCr15	15	24	5	ZZ	P6
6902ZZ	GCr15	15	28	7	ZZ	P6
6702ZZ	GCr15	15	21	4	ZZ	P6
6801ZZ	GCr15	12	21	5	ZZ	P6
6701ZZ	GCr15	12	18	4	ZZ	P6
6901ZZ	GCr15	12	24	6	ZZ	P6
6700ZZ	GCr15	10	15	4	ZZ	P6
6800ZZ	GCr15	10	19	5	ZZ	P6
6900ZZ	GCr15	10	22	6	ZZ	P6
6903ZZ	GCr15	17	30	7	ZZ	P6
6807ZZ	GCr15	35	47	7	ZZ	P6
6709ZZ	GCr15	45	55	6	ZZ	P6
6808ZZ	GCr15	40	52	7	ZZ	P6
6906ZZ	GCr15	30	47	9	ZZ	P6
6710ZZ	GCr15	50	62	6	ZZ	P6
6809ZZ	GCr15	45	58	7	ZZ	P6
6907ZZ	GCr15	35	55	10	ZZ	P6
6707ZZ	GCr15	35	44	4	ZZ	P6
6810ZZ	GCr15	50	65	7	ZZ	P6
6910ZZ	GCr15	50	72	12	ZZ	P6
6811ZZ	GCr15	55	72	9	ZZ	P6
6912ZZ	GCr15	60	85	13	ZZ	P6
6708ZZ	GCr15	40	50	6	ZZ	P6
6812ZZ	GCr15	60	78	10	ZZ	P6
6908ZZ	GCr15	40	62	12	ZZ	P6
6813ZZ	GCr15	65	85	10	ZZ	P6
6914ZZ	GCr15	70	100	16	ZZ	P6

Manufactured in China’s professional bearing industrial base, our tapered roller bearings are ISO and CE certified. Featuring stable performance and an extended service life, they are engineered to meet the rigorous demands of heavy-load industrial machinery.

We offer a complete series of tapered roller bearings, covering mainstream specifications for automotive transmissions, wheel hubs, engineering machinery, and heavy-duty transmission systems. Every bearing undergoes strict production processes and comprehensive quality inspections to ensure reliable daily operation.

Our tapered roller bearings deliver exceptional combined load and impact resistance. Crafted from premium high-purity GCr15 bearing steel, each unit is processed through high-temperature quenching and low-temperature tempering, achieving a final hardness of HRC60 ± 2. This forms a high-hardness, wear-resistant martensitic structure that directly boosts surface strength and load-bearing capacity. The unique geometry of the tapered raceways and rollers evenly distributes contact stress across the entire roller surface, eliminating localized overloading. This design allows the bearing to withstand large radial loads and one-way axial loads simultaneously, with excellent impact resistance even in harsh mining, construction, and heavy truck operating environments.

High rotational stability and low vibration are ensured through multi-stage precision grinding and superfinishing of every raceway and tapered roller, achieving a surface roughness of Ra ≤ 0.2 μm. The ultra-smooth contact surface eliminates micro-jitter caused by uneven friction, ensuring consistent roller movement. Internal radial and axial clearances are precisely controlled during production, effectively reducing preload changes caused by thermal expansion during operation. This minimizes running vibration, maintains stable rotational speeds, and significantly improves the overall operating efficiency of the equipment.

Enhanced wear resistance and extended service life are achieved through multiple design and material optimizations. The optimized logarithmic profile on the roller and raceway contact surfaces prevents edge stress concentration under heavy loads, reducing premature wear at the roller ends. High-quality anti-rust and extreme-pressure lubricating grease is used to form a durable protective oil film between contact surfaces. This film effectively reduces metal-to-metal friction while providing robust protection against moisture, dust, and corrosive substances, slowing wear and corrosion significantly. Even under continuous heavy-duty operation, the bearing maintains stable performance for extended periods.

Our tapered roller bearings also offer wide temperature adaptability. Constructed with special heat-stabilized bearing steel and high-temperature-resistant lubricants, they maintain consistent performance across a temperature range of -40℃ to 150℃. Low-temperature stabilization treatment ensures minimal dimensional and clearance changes at high temperatures, preventing increased vibration, noise, or jamming caused by thermal expansion. This guarantees reliable operation in variable temperature environments.

Widely applied in automotive wheel hubs, gearboxes, differentials, heavy trucks, excavators, mining machinery, agricultural equipment, and large industrial transmission facilities, they serve as ideal high-cost-performance replacements for original imported bearings. We maintain adequate stock of standard models and support custom sizes and OEM services. Competitive factory-direct pricing, professional technical guidance, and reliable after-sales service have earned us recognition from customers worldwide.