OAV tapered-Roller air bearing
OAV Tapered Roller Air Bearings are a first-of-their-kind solution designed to replace conventional tapered roller bearings with true non-contact air film operation. By adapting tapered roller geometry to advanced porous graphite air bearing technology, these bearings eliminate friction, wear, and lubrication—while maintaining high stiffness and precision under load.
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Designed for opposing-pair configurations on a shaft, pressurized air is delivered through internal channels to create a stable, uniform air film between the inner assembly and outer cage. This enables smooth, high-precision rotational motion with exceptional runout performance and long-term reliability.
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Available in both inner-race and outer-cage rotation configurations, OAV tapered roller air bearings provide a drop-in upgrade for applications requiring higher speeds, cleaner operation, and maintenance-free performance compared to traditional bearing systems.
MX Series Outer-Cage Spin
M Series Inner Spin
Frictionless Replacement for Tapered Roller Bearings
Key Benefits
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True non-contact operation (zero friction, zero wear)
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No lubrication required (cleanroom compatible)
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High stiffness with tapered load geometry
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Ultra-smooth rotation with minimal runout
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Maintenance-free, long service life
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Compatible with inner or outer rotation designs
Common Applications
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High-speed rotating equipment
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Precision spindles and rotary systems
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Cleanroom and contamination-sensitive environments
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Aerospace and advanced manufacturing systems
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Upgrades from conventional tapered roller bearings
Frictionless Tapered Motion
Designed to replace conventional tapered roller bearings, OAV’s air bearing technology eliminates friction, wear, and lubrication while maintaining high stiffness and precision under load. Achieve smoother rotation, longer life, and maintenance-free performance in demanding applications.
13 mm OAV Tapered-Roller air bearing
OAV-TPR13M
13 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
20 mm OAV Tapered-Roller air bearing
OAV-TPR20M
20 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
25 mm OAV Tapered-Roller air bearing
OAV-TPR25M
25 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
40 mm OAV Tapered-Roller air bearing
OAV-TPR40M
40 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
50 mm OAV Tapered-Roller air bearing
OAV-TPR50M
50 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
75 mm OAV Tapered-Roller air bearing
OAV-TPR75M
75 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
13 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR13MX
13 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
20 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR20MX
20 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
25 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR25MX
25 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
40 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR40MX
40 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
50 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR50MX
50 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
75 mm OAV X-SPIN Tapered-Roller air bearing
OAV-TPR75MX
75 mm ID made with porous graphite material. High precision and hard-installable replacement for conventional bearings. Zero friction and contact, no maintenance or heat generation at high speeds, and an indefinite operating life with higher stiffness and excellent geometric performance. Manufactured with aerospace quality material.
Custom Design
Tapered Roller Air Bearings
We provide designs that can be integrated into your product and we can quickly develop a design based on the application or specific requirements. We provide detailed drawings and 3-D CAD models, and analyze complex issues associated with your application from nanometer accuracy positioning to standard calculations.