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Angular Contact Ball Bearing
Angular Contact Ball Bearing Angular Contact Ball Bearing Angular Contact Ball Bearing Angular Contact Ball Bearing

Angular Contact Ball Bearing

Thin Section Angular Contact Ball Bearing is a lightweight, high-precision special bearing with a thin-section structure design. It can save space and reduce weight while providing excellent load capacity. It mainly bears axial loads, radial loads and combined loads.

ItemsSpecifications
Inner Diameter (Inch Series)3/4 inch - 40 inches
Cross Sections (Inch Series)3/16 × 3/16 inch - 1 × 1 inch
Inner Diameter (Metric Series)20 mm ≤ d ≤ 360 mm (d represents inner diameter)
Cross Sections (Metric Series)8 × 8 mm - 20 × 20 mm
MaterialBearing rings and rolling elements: GCr15 steel or 9Cr18 stainless steel
Precision LevelsP0, P6, P5, P4
Delivery Time3 - 10 days (except customized products)
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Angular Contact Ball Bearing

Angular Contact Ball Bearing

Angular Contact Ball Bearing features

1. Angular contact structure: The raceway has a specific contact angle of 15°, 25°, or 40°. The larger the contact angle, the stronger the axial load capacity.

2. When used in pairs (O-type, X-type, back-to-back configuration), it can greatly improve the positioning accuracy of the system.

3. Superior high-speed capability compared to most roller bearings: The lightweight steel ball rolling elements have low rolling resistance, and the reasonable contact angle design gives angular contact ball bearings excellent high-speed performance.

4. High precision bearing grades: Available in P5, P4, and P2 grades, with strict control over raceway roundness, roughness, and clearance, suitable for high-end equipment.

5. Applications: High-speed machine tool spindles, industrial robot joints, high-speed motors, precision medical equipment.

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Angular Contact Ball Bearing advantage

1. High-rigidity structure supports the needs of high-precision equipment.

LTZC angular contact ball bearings excel in double, triple, and quadruple configurations, and are particularly suitable for machine tool spindles, robot joints, and high-speed  systems.

2. Optimized materials and heat treatment enhance lifespan and wear resistance.

High-grade bearing steels (such as 42CrMo and 50Mn) are used, and multi-zone temperature-controlled quenching ensures uniform raceway hardness and high fatigue resistance.

3. Customizable sealing, dustproofing, and lubrication options are available. 

High-performance bearing greases and contact/non-contact seals enable stable operation in complex environments.

4. Strict quality system ensures consistency and traceability. 

Based on LTZC's comprehensive testing system (roundness testing, clearance testing, vibration testing, etc.), all angular contact ball bearings achieve high consistency and full-process traceability.

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Angular Contact Ball Thin Section Bearings

Bearing Modeld (inch/mm)D (inch/mm)Cor (N)Cr (N)Coa (N)Ca (N)Weight (Kg)
KAA10AG01.000 / 25.4001.375 / 34.9251510670431020000.011
KAA15AG01.500 / 38.1001.875 / 47.6252130890613032500.017
KAA17AG01.750 / 44.4502.125 / 53.97522202060676036000.020
KA020AR02.000 / 50.8002.500 / 63.500351014701014042700.045
KA025AR02.500 / 63.5003.000 / 76.200427016901236042710.054
KA030AR03.000 / 76.2003.500 / 88.900507019101462042720.064
KA035AR03.500 / 88.9004.000 / 101.600583020901685042730.077
KA040AR04.000 / 101.6004.500 / 114.300663022701911042740.086
KA042AR04.250 / 107.9504.750 / 120.650702023602023042750.091
KA045AR04.500 / 114.3005.000 / 127.000738024502138042760.095
KA047AR04.750 / 120.6505.250 / 133.350778025302249042770.100
KA050AR05.000 / 127.0005.500 / 139.700818026202360042780.104
KA055AR05.500 / 139.7006.000 / 152.400898027602587042790.113
KA060AR06.000 / 152.4006.500 / 165.100974029302809042800.127
KA065AR06.500 / 165.1007.000 / 177.8001054030703036042810.136
KA070AR07.000 / 177.8007.500 / 190.5001129032503263042820.145
KA075AR07.500 / 190.5008.000 / 203.2001209033803485042830.154
KA080AR08.000 / 203.2008.500 / 215.9001285035103712042840.163
KA090AR09.000 / 228.6009.500 / 241.3001440037804161042850.186
KA100AR010.000 / 254.00010.500 / 266.7001596040504610042860.204
KA110AR011.000 / 279.40011.500 / 292.1001751043105058042870.227
KA120AR012.000 / 304.80012.500 / 317.5001907045805507042880.245

Why choose LTZC bearings？

A Trusted Brand

With over 20 years of experience in bearing R&D, our global service network covers countries such as India and Russia, ensuring fast and efficient technical support for all bearing issues and ensuring the smooth operation of your equipment.

High-Quality Bearings

Advanced CNC production equipment and manufacturing processes guarantee bearing precision and durability. LTZC bearings also carry third-party testing reports to ensure they meet international standards.


Product Range

LTZC products include slewing bearings, slewing drives, precision thin-wall bearings, and custom bearings. They are widely used in cranes, heavy machinery, and port machinery, maintaining stable performance under harsh operating conditions.

Custom Bearings

Our experienced technical team provides customized bearing solutions for complex applications. Services include load analysis and bearing selection, service life calculations, 3D design, and engineering drawings.


LTZC slewing bearing manufacturer

LTZC Bearings is a trusted bearing manufacturer specializing in slewing bearings, slewing drives, and precision bearings. With advanced CNC machining equipment, comprehensive heat treatment, and strict quality control, our products meet international standards and are ISO certified.

We export high-quality industrial bearings to Germany, India, Russia, and Canada, earning over 10,000 satisfied customer feedbacks. With strong OEM and ODM capabilities, LTZC provides fast delivery and custom bearing solutions for heavy machinery, construction, and automation industries.

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Customized bearing solutions

Customized bearing solutions

LTZC is a professional slewing bearing manufacturer，providing a full range of custom bearing services, including slewing rings, non-standard bearings, large bearings, thin-section bearings, crossed roller bearings, and four-point contact ball bearings. Whether the requirements are special sizes, materials, or complex operating conditions, we can provide customers with the optimal solution through professional R&D and precision manufacturing.

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