Low-Friction Bearing Patent Landscape 2026
Low-friction bearing innovation is in a growth phase, led by a concentrated group of established bearing specialists with NTN Corporation holding a commanding position among ranked filers. The United States is the primary filing jurisdiction, and activity spans bearing design, lubrication, coatings, and adjacent mechanical systems.
NTN leads a highly concentrated field of bearing specialists
NTN Corporation ranks first among all applicants, followed by AB SKF, NSK, Thyssenkrupp Rothe Erde, and White Consolidated Industries. These five together account for 61% of the combined output of the hundred largest filers, signaling that a small group of established bearing manufacturers dominates the IP landscape.
The top-tier gap is substantial: NTN’s patent record count is more than double that of the second-ranked applicant, AB SKF, which itself leads NSK by a meaningful margin. Below the top three, applicants cluster at smaller counts, indicating a long tail of niche contributors rather than a second competitive tier of comparable scale.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | NTN Corporation | 42 | |
| 2 | AB SKF | 20 | |
| 3 | NSK Ltd | 17 | |
| 4 | Thyssenkrupp Rothe Erde GmbH | 9 | |
| 5 | White Consolidated Industries Inc | 8 | |
| 6 | Amsted Rail Co Inc | 7 | |
| 7 | Dentsply Sirona Inc | 6 | |
| 8 | igus GmbH | 6 | |
| 9 | SCHAEFFLER TECHNOLOGIES AG & CO KG | 5 | |
| 10 | Novak Eugene J | 2 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Snecma Moteurs SA | 2 | |
| 12 | Indian Institute of Technology Kharagpur | 2 | |
| 13 | Matsushita Refrigeration Co | 2 | |
| 14 | SHANGHAI F&S BEARING TECH | 2 | |
| 15 | Saudi Arabian Oil Company | 2 | |
| 16 | Kungursky Mashinostroitelny Zavod | 2 | |
| 17 | Prober Paul R | 2 | |
| 18 | KOREA HYDRO & NUCLEAR POWER CO LTD | 1 | |
| 19 | Wafangdian Bearing Group Dalian Wind Power Main Shaft Bearing Co Ltd | 1 | |
| 20 | Shandong Chaoxiang Bearing Co Ltd | 1 |
The leaders’ positions reflect deep, decades-long portfolios in rolling-element and sliding bearing geometry, surface treatment, and sealing — areas that form the core of the F16C class. Challengers and new entrants face a well-occupied core but may find differentiation in adjacent application domains such as dental instruments, compressors, and rail systems.
The most recent 18–24 months of filing data are subject to publication lag and are likely undercounted; activity levels for 2024–2026 should be treated as preliminary. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Sustained growth across a decade with bearing mechanics as the dominant technology branch
The annual filing chart and the technology composition chart together reveal a field that has grown consistently since 2017, with a broad but F16C-dominated technology mix extending into lubrication, coatings, and specialized end-use sectors.
Annual filing trend
Filings have moved broadly upward from 2017 through 2024, with notable peaks in 2022 and 2024. The 2025 and 2026 data points are understated due to publication lag and should not be read as a slowdown; the field’s lifecycle is classified as Growth with a 73% recent-window increase.
↗ Hover for values · click a bar to ask EurekaTechnology composition
F16C (Shafts, bearings and couplings) dominates the technology mix by a wide margin, reflecting the core bearing-design focus of leading applicants. Secondary branches — including F04B (positive-displacement pumps), F16H (gearing and transmissions), F16J (pistons, seals and gaskets), and A61C (dentistry and oral hygiene) — each hold single-digit shares, pointing to a range of application-specific developments outside the mechanical bearing core.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Roller Bearing Comprising a Multi-Component Plasti…
A rolling bearing, in particular a ball bearing, is in the form of two bearing rings that are mounted so as to be rotatable relative to each other about an axis. The roller bearing includes an inner ring and an outer ring which each form a guide portion of a guide. The guide portion surrounds the axis with the portion formed by the inner ring is radially… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Bearing assembly with dynamic drainage supplied wi… | 114 |
| 2 | Dental handpiece with improved grease retention | 77 |
| 3 | Refrigerating compressor | 32 |
| 4 | Bearing device | 31 |
| 5 | Rolling sliding member and its manufacturing metho… | 31 |
| 6 | Rolling bearing, rolling bearing for fuel cell, co… | 27 |
| 7 | Improvements relating to bearings | 27 |
| 8 | Roller Bearing for a Fluid-Agitating Element and A… | 26 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the competitive structure means for R&D investment decisions
The field’s concentration, growth trajectory, and cross-sector reach create distinct implications for incumbents defending positions and for challengers seeking differentiated entry points.
Growth stage with sustained multi-year momentum
The lifecycle is classified as Growth, supported by a 73% increase in the recent filing window. Annual volume has remained active across the 2017–2024 window without a confirmed structural peak. Engineers entering this space should expect active prior-art accumulation and continued claim refinement from established players.
Lifecycle: GrowthTop five filers hold 61% of ranked-applicant output
NTN, AB SKF, NSK, Thyssenkrupp Rothe Erde, and White Consolidated Industries collectively hold 61% of the combined patent records among the hundred largest filers. This high concentration means that freedom-to-operate analysis should prioritize these five portfolios. Differentiation is most viable in application-specific branches (e.g., dental, compressor, rail) rather than in the overcrowded core bearing-geometry space.
High concentrationLimited co-filing activity, anchored at SKF
The collaboration evidence shows two inventor-level co-filing pairs — Jeroen Wensing with SKF and Ian Peverill with SKF, each with two joint records — suggesting that SKF engages selectively with external inventors rather than through broad institutional partnerships. No multi-organization R&D consortia are evident in the data. For new entrants, a co-development arrangement with an established bearing house may offer faster portfolio building than purely organic filing.
Low collaboration densityUnited States as primary filing jurisdiction, with broad European and Asian coverage
The United States leads by filing count, followed by Europe (EPO), Japan, Canada, and India. China, while home to two applicants in the ranking, shows a smaller record count at the jurisdiction level, suggesting that Chinese-origin applicants are filing selectively rather than broadly. Teams weighing patent strategy should ensure US and EPO coverage as a minimum, with Japan and Canada as important secondary jurisdictions.
US-led, globally spreadGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| WENSING JEROEN | AB SKF | 2 |
| PEVERILL IAN | AB SKF | 2 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
NTN leads on volume; SKF and igus are active new entrants in the recent window
The top players are established bearing manufacturers with strong F16C concentration, but their strategic emphases diverge in secondary technology branches — a meaningful signal for technology gap analysis.
NTN Corporation
NTN Corporation ranks first with 42 patent records, concentrated in F16C 33 (rolling-element bearing components) and F16C 19 (rolling bearings), with a secondary presence in F16H 3 (gearing and transmissions). This breadth across both bearing geometry and power-transmission gearing sets NTN apart from more narrowly focused rivals. Momentum data for NTN’s most recent window was not separately reported in the evidence.
patent records: 42igus GmbH
igus GmbH holds 6 patent records, focused across F16C 19, F16C 33, and F16C 35 (bearing housings and mounting), reflecting a polymer plain-bearing specialization consistent with the company’s commercial focus. The applicant momentum data classifies igus as a new entrant in the recent filing window, indicating an accelerating IP build-up rather than a legacy portfolio — making it a challenger worth tracking in the low-friction sliding-bearing segment.
patent records: 6| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| AB SKF | 4 | ▲ new entrant |
| igus GmbH | 6 | ▲ new entrant |
Under-served adjacent branches worth monitoring for differentiated entry
Several IPC branches adjacent to the F16C core show relatively sparse patent records within this landscape. These observations reflect lower IP density and are not validated commercial opportunities; technical relevance and entry path should be assessed independently.
F04B · Positive-displacement pumps
This branch holds 15 patent records and a 5% share within the landscape — low relative to the F16C core. Low-friction bearings are structurally critical in piston and diaphragm pumps, where wear and thermal loading are acute. The sparse coverage suggests that pump-specific bearing design (e.g., pressure-compensated low-friction surfaces for high-duty-cycle reciprocating pumps) is an under-filed sub-space. An applicant with competency in both bearing tribology and fluid-handling machinery could develop differentiated claims here.
Search this in Eureka →A61C · Dentistry & oral hygiene
With 8 patent records and a 3% share, the dental handpiece segment is notable given that Dentsply Sirona — a specialized dental equipment company rather than a bearing house — appears in the applicant ranking specifically in this branch. The most-cited patent ‘Dental handpiece with improved grease retention’ (77 citations) confirms that bearing performance in high-speed dental turbines is a technically active problem. The branch is under-served by mainstream bearing manufacturers, presenting a niche entry path for applicants combining precision bearing design with medical-device regulatory knowledge.
Search this in Eureka →Frequently asked questions
The landscape covers 44 patent families in scope. Applicant rankings and technology branch counts are reported at the patent-record level, which can exceed the family total because a single family may be filed across multiple jurisdictions.
NTN Corporation leads with 42 patent records, more than double the count of the second-ranked applicant, AB SKF (20 patent records). NSK Ltd ranks third with 17 patent records.
The field is classified as Growth, with a 73% increase in the recent filing window. Annual filings have remained active across the 2017–2024 period. Data for 2025 and 2026 are understated due to publication lag and should not be interpreted as a slowdown.
The United States leads as the primary filing jurisdiction, followed by Europe (EPO), Japan, Canada, and India. China also appears as a filing destination. Teams building patent strategy should treat US and EPO coverage as a minimum baseline.
F16C (Shafts, bearings and couplings) dominates by a wide margin. Adjacent branches with lower but non-trivial coverage include F04B (positive-displacement pumps), F16H (gearing and transmissions), F16J (pistons, seals and gaskets), and A61C (dentistry and oral hygiene), each representing potential areas of differentiation.
Collaboration activity is limited in the evidence. SKF is the only organization shown in co-filing records, with two joint filings each alongside inventors Jeroen Wensing and Ian Peverill. No multi-institution research consortia are evident, suggesting that IP development in this field is primarily conducted within individual organizations.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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