Basic rating life
API · /bearing-api
Bearing Life API
healthy
3,567 Subscribers
Rolling-element bearing life maths (ISO 281) as an API, computed locally and deterministically. The life endpoint computes the basic rating life of a ball or roller bearing, L10 = (C/P)^p — where p is 3 for ball bearings and 10/3 for roller bearings — from the dynamic load rating C and the equivalent load P, reporting the life in millions of revolutions and, given a speed in rpm, in hours and days; it also works backwards, solving the minimum dynamic load rating needed for a target life, or the maximum load a bearing can carry to still reach it. The load endpoint computes the equivalent dynamic load P = X·Fr + Y·Fa from the radial and axial loads and the bearing X and Y factors, the single load value the life formula needs. The reliability endpoint applies the ISO 281 life-modification factor a1 to give the adjusted rating life Lna = a1·L10 for any survival probability from 90 % up to 99.95 %, interpolated from the standard reliability table. Everything is computed locally and deterministically, so it is instant and private. Ideal for mechanical-engineering, maintenance and reliability tools, machine and drivetrain design, predictive-maintenance and lifetime-costing apps, and engineering education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is rolling-bearing rating life; for shaft torsion stress use a torsion API and for rotational energy use a flywheel API.
api.oanor.com/bearing-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 94 ms
- Server probes · 24h
- Subscribers
- 3,567
- active
- Total calls
- 36
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 2,000 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- Basic L10 rating life for ball & roller bearings
- ISO 281 dynamic load rating C input
- JSON request/response
- 2 req/s burst
Starter
€9.00 /month
- 15,000 calls / month
- 6 requests / second
- Hard cap (429 above quota, no overage)
- L10 + Lnm adjusted rating life
- Ball and roller exponent handling (p=3 / 10/3)
- Speed-to-hours life conversion
- Email support
Pro
€24.00 /month
- 80,000 calls / month
- 18 requests / second
- Hard cap (429 above quota, no overage)
- Full reliability-adjusted life (a1 factor)
- Equivalent dynamic load P from radial/axial
- Batch life computation per request
- Priority support & 99.9% uptime
Mega
€74.00 /month
- 400,000 calls / month
- 50 requests / second
- Hard cap (429 above quota, no overage)
- Unlimited bearing geometries & load cases
- Full ISO 281 modified-life pipeline
- High-throughput 50 req/s for CAE workloads
- Dedicated SLA & engineering support
Built by
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api.oanor.com/reliability-api
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Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Bearing Life API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Bearing Life API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Bearing Life API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Bearing Life API cost?
Bearing Life API has a free tier with 100 calls / month. Paid plans start at €9.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Bearing Life API GDPR-compliant?
All requests to Bearing Life API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/bearing-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/bearing-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/bearing-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);import requests
r = requests.get(
"https://api.oanor.com/bearing-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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