Spindle Bearings B7010C-2RSD-T-P4S-UL

Hangzhou Huaxing Kechuang Holding Group Co., Ltd. is one of the leading manufacturers and suppliers of spindle bearings b7010c-2rsd-t-p4s-ul in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy bulk high quality bearings at competitive price from our factory.

 

Spindle Bearings-B7010C-T-2RSD-P4S-DBL

Also know asS7010CDGAP4A, 7010CTRV1VDBELP4, KH6010CTAP4UL, 7010C-2RZDBP4

 

 

Inside Ø (mm):	50
Outside Ø (mm):	80
Width (mm):	16
Contact Angle:	15°
Rows Of Balls:	Single Row
Seal:	NBR
Ring Material:	GCr15, 100Cr6, SUJ2, X30
Rolling Element Material:	Steel
Cage Material:	Phenolic Resin
Tolerance Class:	P4S
Lubrication:	Greased with Lubcon L252
Type of lubrication:	Grease
Product weight:	0.256 kg

 

Type	Dimensions					Abutment dimension				Load rating		Speed value		Weight
	mm					mm				N		r/min		(kg)
	d	D	B	r (min)	r1 (min)	Da	da	ra (max)	ra1 (max)	Cr	Cor	Noil	Ngrease
H71910C-2RZ	50	72	12	0.6	0.3	66.7	55.3	0.6	0.15	13200	10000	36000	22000	0.129
H71910AC-2RZ		72	12	0.6	0.3	66.7	55.3	0.6	0.15	12500	9500	32000	19000	0.129
H7010C-2RZ		80	16	1	0.6	73.1	58	1	0.3	15400	12000	34000	20000	0.256
H7010AC-2RZ		80	16	1	0.6	73.1	58	1	0.3	14700	11400	30000	18000	0.256

 

The B7010C-T-2RSD-P4S-DBL is a high-rigidity standard-section super precision angular contact ball bearing specially engineered for high-speed spindle rotary systems. Differing fundamentally from the thin-wall 719-series miniature precision bearings, the 7010 standard cross-sectional structure delivers higher radial and axial load capacity, integral structural rigidity and anti-deformation performance, positioning it as the core supporting component for industrial high-speed spindles rather than micro miniature precision equipment. This model features multi-brand universal interchangeable part numbers, including S7010CDGAP4A, 7010CTRV1VDBELP4, KH6010CTAP4UL, and 7010C-2RZDBP4, fully compliant with international spindle bearing standards for direct cross-brand replacement and spindle equipment renovation.

 

 

Different from the medical and optical micro-precision scenarios of thin-wall precision bearings, B7010C-T-2RSD-P4S-DBL is fully positioned for industrial machine tool spindle core applications, with highly targeted professional equipment matching. Typical applicable equipment models include: high-speed engraving and milling machine spindles, CNC machining center main spindles, high-speed drilling and tapping machine spindles, mold precision milling spindles, automated production line dedicated high-speed rotary spindles, and medium-load industrial precision grinding machine spindles.

In actual industrial production, this bearing is widely used in mid-to-high-end CNC machine tool spindle transformation and maintenance. Its factory DBL pre-pairing design reduces equipment assembly errors and debugging cycles, while high rigidity and anti-vibration performance effectively improve machining efficiency and workpiece yield. It is the preferred upgraded bearing for replacing ordinary precision bearings for machine tool spindles, solving the problems of easy vibration, poor finish and short service life of traditional spindle bearings.

 

 

The spindle bearings are a specially designed angular contact ball bearing consisting of an inner ring. An outer ring, a cage, a set of rolling elements and optional grease and seals. According to the customer's use and working conditions, we will provide the corresponding parts materials to achieve the best performance of the bearing.

• Seals: non-contact rubber seals on both sides
• Balls: G5 steel ball
• Rings: OVAKO Sweden steel
• Cages: phenolic resin or polyamide
• Grease: Lubcon or Klueber

 

 

 

Dedicated to the R&D and manufacturing of high-end bearings, HXB Brand started production in 1995. After nearly 30 years of development, it has formed an industrial layout with six subsidiaries, two professional R&D centers and two intelligent manufacturing bases: Hangzhou Precision Bearing Plant and Huzhou Deep Groove Ball Bearing Branch. Digitalized control is implemented in all workshops, and the enterprise holds complete international standardized system certifications. Core products include high-speed motor spindle bearings, precision angular contact ball bearings and servo motor bearings. The Hangzhou plant achieves an annual capacity of 3 million sets of precision bearings, which are sold to Europe, America, Japan, India and South Korea to support brands including Siemens and John Deere. Customized development based on drawings and samples is available.

 

 

 

 

 

∗ 2 modern manufacturing factories - Hangzhou Yijia Precision Bearing Co., Ltd. and Zhejiang Ruiyang Bearing Technology Co., Ltd.

∗ Supported by advanced digital MES and SPC management systems

 

 

∗ IATF16949:2016, ISO9001:2015 and ISO14001 certifications

∗ High-end equipment and high-quality material

 

 

 

 

 

 

1. Rolling Bodies (Steel Balls) High-Temperature Upgrade

Standard steel balls produce thermal fatigue, oxidation and surface peeling under prolonged high-temperature operation, leading to increased vibration and reduced machining accuracy. B7010 rolling bodies adopt dual high-temperature upgrades including optimized raw materials and enhanced surface treatment.

Ultra-high-purity vacuum-degassed steel features uniform carbide distribution, resisting softening and permanent deformation at 120℃–180℃ to maintain stable rigidity. Professional high-temperature anti-oxidation and anti-wear treatment eliminates micro defects, reduces thermal friction and prevents carbon adhesion, ensuring ultra-low spindle runout and consistent long-term precision under sustained high heat.

2. Bearing Cage High-Temperature Optimization

The cage is the most heat-sensitive part of spindle bearings. Conventional phenolic and nylon cages easily age, shrink and deform under continuous high temperatures, resulting in abnormal noise and unstable operation. The high-temperature B7010 bearing adopts fully optimized heat-resistant cage solutions.

Fiber-reinforced phenolic cages and PEEK polymer cages apply to 120℃–200℃ working scenarios, with low thermal expansion and excellent anti-aging performance to avoid operational jitter. Brass and silicon bronze cages support heavy-load operation above 200℃. Factory-calibrated pocket clearances adapt to thermal expansion, prevent ball clamping and overheating, and completely eliminate cage-caused high-temperature bearing failure.

3. Sealing System High-Temperature Upgrade (2RSD Structure Customization)

Standard 2RSD seals made of ordinary NBR rubber age, harden and crack under high temperatures, causing grease leakage, dust and cutting fluid intrusion and premature bearing damage. High-temperature B7010 bearings adopt upgraded heat-resistant sealing configurations.

Viton fluororubber seals replace traditional NBR rubber, supporting long-term stable operation at 200℃ and peak temperature resistance up to 250℃ with outstanding thermal aging and oil corrosion resistance. Retaining the original zero-friction 2RSD non-contact structure, recalibrated sealing lip clearances effectively block high-temperature oil mist, metal powder and vapor. This prevents internal grease contamination and carbonization, greatly extending service life in harsh high-temperature workshop environments.

4. High-Temperature Lubrication Medium Upgrade

Lubricant failure is the leading cause of high-temperature spindle bearing damage. Ordinary lithium-based grease thins and carbonizes rapidly above 100℃, losing lubricating performance and causing dry friction, overheating and spindle jitter. This upgraded B7010 bearing adopts dedicated high-temperature lubrication matching.

PFPE perfluoropolyether grease or polyurea high-temperature grease is applied for strong oxidation and coking resistance, maintaining complete lubricating films under 180℃–220℃ long-term operation. The grease filling rate is optimized to 1/3–1/2 of internal space to reduce high-speed stirring heat. For ultra-high-temperature continuous production, oil mist and oil-gas circulating lubrication is recommended to realize real-time heat dissipation and lubricant renewal, completely solving high-temperature lubrication failure risks.

5. Internal Clearance & DBL Pairing High-Temperature Calibration

Standard P4S bearing clearance disappears after thermal expansion, causing clamping stagnation, excessive friction and spindle burnout. Combined with B7010 exclusive DBL back-to-back pairing structure, professional high-temperature clearance and preload optimization is essential.

UL micro-negative clearance and C3 high-temperature dedicated clearance reserve sufficient thermal expansion tolerance, ensuring stable dynamic clearance without stagnation or excessive runout under continuous heating. Recalibrated factory DBL preload avoids rigidity attenuation caused by uneven thermal expansion, maintaining stable anti-deflection performance and consistent machining accuracy during long-term high-temperature spindle operation.

6. Ring Forging & High-Temperature Heat Treatment Upgrade

Bearing inner and outer rings release residual stress and produce thermal deformation under cyclic high temperatures, reducing fitting accuracy and causing spindle runout failure. Optimized forging and stabilized heat treatment processes are adopted for high-temperature adaptation.

Secondary high-temperature tempering eliminates internal residual stress, improving dimensional stability under alternating temperature conditions. Ultra-fine raceway grinding stabilizes surface hardness and finish, preventing micro-deformation and precision drift. This process retains original assembly accuracy and rotary rigidity after thousands of hours of high-temperature operation, reducing spindle calibration frequency and precision failure rate.

 

 

 

 

 

 

Type	Dimensions					Abutment dimension				Load rating		Speed value		Weight
	mm					mm				N		r/min		(kg)
	d	D	B	r (min)	r1 (min)	Da	da	ra (max)	ra1 (max)	Cr	Cor	Noil	Ngrease
H71910C-2RZ	50	72	12	0.6	0.3	66.7	55.3	0.6	0.15	13200	10000	36000	22000	0.129
H71910AC-2RZ		72	12	0.6	0.3	66.7	55.3	0.6	0.15	12500	9500	32000	19000	0.129
H7010C-2RZ		80	16	1	0.6	73.1	58	1	0.3	15400	12000	34000	20000	0.256
H7010AC-2RZ		80	16	1	0.6	73.1	58	1	0.3	14700	11400	30000	18000	0.256