Rotec AI
AI Engineering Intelligence for Rotating Equipment
What do you want to do?
Pick a tool to start. Tap All tabs at the bottom any time to see every section.
Step 1 of 7
Awaiting input
Rotec AI — Bearing Selection Report
Generated:
Spec Plate— — —
Channel—
Sector—
Equipment—
Precision—
Radial load Fr—
Axial load Fa—
Speed—
Target life—
Min. bore—
Environment—
Op. temperature—
Motion—
Misalignment—
Which bearing—
Rotation—
Bearing family will appear here
🔒
Preview mode
See how bearing verification works — activate a license to check your own designation and loads.
Verify a bearing you've already picked
For when you already know the designation from
experience — a plant standard, a part you've replaced before — and just need a fast, real sanity check against the
actual load and speed, not a full selection walkthrough. Enter what you know; leave the rest at the defaults if
you're short on time.
Non-drive ends are often built as the
non-locating bearing in a typical arrangement — designed to float axially and carry little to no thrust by
design, since that job usually falls to the drive end instead. Worth double-checking this really does see
axial load in your specific design, rather than assuming it does by default.
Don't know these offhand?
Open Load Calculator to work them out
from your actual equipment type — your entries here stay put, so come back to this tab once you have the numbers.
No shortcuts on this one — a guessed load is a wrong answer with better manners.
Spec Plate— — —
Enter a designation to check it
🔒
Preview mode
Browse every calculator below — activate a license to enter values and calculate.
Pick your equipment — grouped by how the load actually arises
Power transmission (motors, gearboxes, drives)
Fluid & process equipment
Heavy & rotating process equipment
Reciprocating machinery
Material handling
Mobile, rail & transport
Marine & renewable energy
Machine tools
Other
Not calculated here
Crushing force depends on the crusher type (jaw/cone/gyratory/impact), material hardness, eccentric throw,
and the mechanism's own mechanical advantage — these vary enough between designs that a single generic formula would likely
mislead rather than help. Get the bearing reaction loads from the crusher OEM's own published data or design calculation,
then use "Manual entry" here to carry those numbers into the bearing selector.
Length between the 2 bearing positions.
Enter each real load on the shaft — its position (distance from DE; enter a negative
number, or a number greater than the span, for a load overhung beyond one of the bearings), and its radial and/or axial magnitude.
This calculates the real reaction at both DE and NDE from every load you enter (standard superposition on a simply-supported shaft) —
the same physics used for the mill/trunnion calculator above, generalized to as many loads as your actual application has.
Shaft support configuration
Sizing the DE and NDE bearings is normally two separate runs of this calculator — the load
split between them depends on where the driven component sits, and each end can end up needing a different bearing size.
Both reactions are shown below; use whichever matches the "which bearing" choice above.
How this works
Worked templates: complete calculations for a whole machine arrangement
Each template takes the machine geometry and loads, works out the reaction at both bearings, the thrust, and the life of each bearing, and shows every step. Pick one, enter the values for your machine, press Calculate. Included with a licence.
Worked templates are part of the licensed toolYou can browse the layout and see the example below. Entering your own values and the full results need a licence.
Saved bearing positions
This session only — closing or refreshing the page clears these. Save from
the bottom of any completed result in the Bearing Selector tab.
🔒
Preview mode
Explore how real machines are built: bearing arrangements, failure modes and OEM part numbers. Activate a license to open the machines.
Equipment anatomy
See inside the machine
Pick a machine to see how its bearings are arranged in a true cross-section: which bearing locks the shaft and which one floats, the part numbers used, how each one typically fails, and the seals, lubrication and housings around it.
Catalogue part-number lookupPublished OEM part numbers across 9 sectors: electric motors, tractors, paper machines, metals, mining, aerospace, food and beverage, pumps and railways.
FAQ and quick check
Check the basics in a minute
Type a bearing number, a question or a machine. You get the answer first, with a button to the full tool. Or pick a quick check below. Everything comes from this tool's own data, so it is instant and works offline. It is not a chatbot.
Quick checks
Fill in a few numbers, get an answer with a green, amber or red verdictLook up a machine
Arrangement drawings, bearing numbers, failures and rules of thumbSomething is wrong
Pick what you noticeLearn the basics
Cross-reference by full designation
Type the whole number exactly as printed on the bearing, with its prefix and suffix letters. You get equivalent bearings at other makers, and every code in your number explained in plain words, so you know what must match before you swap.
1 · Who made it? (optional)
2 · Bearing number
Try:
Don't have a number? Browse by type and sizeSee which sizes exist and what each maker calls them.
🔒
Preview mode
Browse how distributor search works — activate a license to search by your own city or pincode.
Find a distributor
🔒
Preview mode
You have used your 2 free damage reports. Activate a license to open every failure mode, diagnose and troubleshoot.
🔒
Preview mode
You have used your 2 free lubrication calculator uses. The lubrication guides stay free. Activate a license to keep using the calculators.
Subscribe to Rotec AI
Unlocks Load Calculator, Equipment Anatomy, Verify a Bearing and Failure Analysis. Cross-Reference is free. After subscribing, you'll receive
your license key by email or WhatsApp shortly afterward — activate it in the box at the top-right of this page.
Individual
For a single engineer's own use. ₹499/month or ₹4,990/year.
Enterprise
One shared license key for your whole team, with custom pricing, GST invoice and bundling options.
Subscribe now
Choose monthly or annual in Razorpay's secure checkout.
Buy a licence (outside India)
Individual plan: US$19 per month or US$190 per year. Contact us and we will send you a secure payment link in US dollars. Your licence key follows by email or WhatsApp.
Prefer to talk
it through first, or need an invoice? Message us on WhatsApp →
Rotec AI Community
A real, live WhatsApp community for mechanical and maintenance engineers — post an
actual failure with a photo, ask for a second opinion on a selection, or just see what other people in the field are
running into this week. Not a substitute for the calculations in this tool — the place to compare notes with other engineers
when a real-world case doesn't fit neatly into a spec sheet.
What it's for
- Post a real failure — photos welcome — and ask what others think caused it
- Get a second opinion on a bearing selection before you commit to an order
- Share a lubrication insight or a fix that worked for you, for others to learn from
- See what real engineers in other plants and sectors are actually running into
Ground rules
This is a public group — anything posted is visible to every member, so don't
share anything commercially sensitive (customer names, contract pricing, proprietary drawings). Keep it engineering
discussion, not a sales channel. Basic courtesy — this works best as a place people actually want to check.
This is a general template provided for convenience and has not been reviewed by a lawyer — please have it checked against your specific business and local regulatory requirements before relying on it.