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Angular contact bearings support both radial and axial loads and are designed to operate at high speeds for vast amounts of time. Also known as spindle bearings, GMN angular contact bearings are beneficial for applications that:

  • Operate at high-speeds
  • Need bearing load support
  • Need rigidity

Our ABEC 7 angular contact bearings are manufactured in Nürnberg, Germany, and stocked in Houston, Texas. We have one of the largest in-stock inventories of angular contact bearings in N. America.

We are a precision bearing company located in Houston, Texas, and the only authorized distributor of GMN precision components in the USA.

Our Angular Contact Ball Bearing Products

Our three angular contact bearing product lines include our Standard (S), SM, and KH series.

We ship orders the same day the PO is sent (as long as the PO is sent by 3:30 pm CST). Most of our precision bearings are in stock and ready to ship out from Houston, Texas.

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S Series

S Series

Fast Speeds, Heavy Loads

The S “standard” series bearing adapts to many different speeds, loads and other variables.

This series fits shafts with a max ID of 120 mm and supports max RPM speeds of 195,000 (steel) / 243,750 (ceramic).

Browse Our S Series Sizes

SM Series

SM Series

Faster Speeds, Medium Loads

Compared to our S Series, the SM can support speeds about ~ 20% faster w/ medium loads.

The SM series fits shafts with a max ID of 120 mm and supports max RPM speeds of 230,000 (steel) / 287,500 (ceramic).

Browse Our SM Series Sizes

KH Series

KH Series

Fastest Speeds, Light Loads

Our KH series is optimized to support the fastest speeds. Choose this bearing if you need seals (also comes open).

The KH series fits shafts with a max ID of 70 mm and supports max RPM speeds of 135,000 (steel) / 168,750 (ceramic).

Browse Our KH Series Sizes

Customization Options for Your Angular Bearings

We understand that some machine applications have different and unique bearing requirements. Some may need heavier load capabilities or faster operational speeds. We strive to offer a truly customizable approach for our angular contact bearings.

Our bearing experts can help you find the optimal bearing for your application. Give us a call today!

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Angular Contact Ball Bearing Selection Choices:

  • Cage Material: Phenolic Resin (standard) or PEEK with Carbon Fiber
  • Ball Material: 52100 Bearing Steel or Ceramic (Silicon Nitride, Si3N4)
  • Contact Angle: 15° to 25° or custom
  • Preload: Light, Medium, Heavy or Spring-Loaded
  • Sealed Bearings: Available only in our KH Series
  • Lubrication: Grease or oil.
    • Direct Oil Lubrication: On request we can provide a small hole on the outer ring of the bearing for lateral oil supply. Your bearing technician can give you more information when you contact us.
    • Grease Lubrication: Similar to the direct oil lubrication, except a slightly larger hole on the outer ring for the grease supply. Contact us for more information about adding grease lubrication to your angular contact bearing order.
  • Matching & Preload Choices: universal matching, face-to-face arrangement, back-to-back arrangement.
  • High Point Marking: high point mark for radial runout for inner ring, outer ring, or both.
  • Grading of Bore & Outer Diameter
  • Heat Treatment Choices: dependent on maximum operating temperatures.

Our goal is to make sure every machine and application has the right precision angular contact bearing. If you are unsure about what bearing is best for your application, contact us!

Our Precision Class Standards

Bearing precision is important, especially if your equipment is being used at maximum speeds. Precision classes guide the properties of bearings to ensure uniformity and regulation standards are met.

Standards are usually represented in ABEC, DIN or ISO classes.

ISO 492 Certified  DIN 620 Certified

All GMN high precision ball bearings meet the below criteria for each standard.




Internal Tolerance Class

Class 4




Class 2



Ultra Precision (UP+)

Common Machine Tools & Applications That Use Spindle Bearings

Our in-house engineers at GMN Bearing USA offer best in class support to help you improve the performance of your application with proper ball bearing installation and maintenance. We work with several industries and applications including:

  • Metal cutting & woodworking machinery spindles
  • Machine spindles
  • Grinders
  • Vacuum pumps
  • High speed rolling mills
  • High speed turbochargers
  • Superchargers
  • Centrifuges
  • High-speed pumps
  • And more

Helpful Tools & Resources for Angular Contact Bearings

Quickly find an equivalent GMN part number to major brands like SKF, NSK, Barden & more with our Bearing Cross Reference Chart or our Interchange Chart for Angular Contact Bearings.

Browse our helpful articles, guides, calculators, and case studies:

Contact GMN Bearing USA for Quality Bearings and Support!

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