Bearing Finder by Dimensions (Bore + OD + Width)
Enter bore, outer diameter, and width — get the bearing number
Bore, OD और width डालें — bearing नंबर मिल जाएगा
When a bearing is worn, rusted, or marked over and you need to source a replacement, the fastest way to find the correct bearing number is to measure three physical dimensions — bore (inner diameter), OD (outer diameter), and width — and match them against ISO 15 standard dimension tables. A bore of 25 mm with OD 52 mm and width 15 mm uniquely identifies a 6205 deep-groove ball bearing; the same 25 mm bore with OD 62 mm and width 17 mm is instead a 6305 (heavier duty). Bore 50 × OD 90 × width 23 is a 22210 spherical roller. Width alone is rarely enough; at least two dimensions are needed. If only bore is known, the tool returns all bearings with that bore diameter so you can narrow down by visual type (deep-groove ball, tapered roller, spherical, etc.). This complements the Bearing Number Decoder — use the decoder when you have the number, use this finder when you don't.
Calculator
Required
Optional — leave blank if unknown
Optional — leave blank if unknown
±1 mm handles caliper error
ƒFormula
Lookup: (bore, OD, width) → bearing number (ISO 15 standard dimension series)There is no mathematical formula — bearing numbers are assigned to specific physical-size combinations. The 62xx series has one set of (OD, width) for each bore; the 63xx series (heavier) has larger OD and width for the same bore. This tool searches the standard ISO 15 table and returns any bearing within a small tolerance (±1 mm by default) of your measurements.
Units: All dimensions: millimetre (mm)
Bearing ka number nahi padh paa rahe? Dimensions se pata karo
Purani bearing rusty ho gayi ya number mit gaya hai — phir bhi same replacement order karna hai. Sabse aasaan tarika: teen dimensions measure karo (vernier caliper se) — bore (inner diameter), OD (outer diameter), aur width. Yeh teen number ISO 15 standard table se match karke bearing ka number nikal aata hai. 25 × 52 × 15 ka matlab 6205 (deep groove ball, light series). 25 × 62 × 17 matlab 6305 (heavy series). 50 × 90 × 23 matlab 22210 (spherical roller). Sirf bore known hai toh tool aapko saare bearings dikhata hai us bore ke — phir visually bearing type match karke select karo.
Worked Examples
Worn motor bearing replacement
Problem: A 5 HP motor bearing has failed. The number on the side is unreadable. Caliper measurements: bore 25 mm, OD 52 mm, width 15 mm.
Solution: Match: 6205 (deep-groove ball bearing, light series 62xx). Order a 6205-2RS from Shri Narayan Machinery Noida — the -2RS suffix gives you rubber seals for better dust protection than the -ZZ shielded variant.
Heavy-duty conveyor bearing
Problem: A conveyor idler has a bigger-than-usual bearing. Measurements: bore 50 mm, OD 90 mm, width 23 mm.
Solution: Match: 22210 (spherical roller bearing). This is a heavy-duty unit with self-aligning capability — typical for conveyors where shafts may deflect. Note the two rows of barrel-shaped rollers when you compare visually.
Same bore, two possible bearings
Problem: Bore 25 mm measured, but visually two different sizes of bearing in stock.
Solution: Search with just bore = 25: tool returns 6205 (52 × 15), 6305 (62 × 17), and 30205 (52 × 16.25 — tapered roller). Measure OD + width to narrow down. If OD = 52 and width = 15 → 6205. If OD = 62 and width = 17 → 6305.
Most Common Bearings — Bore × OD × Width Reference
सबसे common bearings — dimensions reference
| Bearing | Bore (mm) | OD (mm) | Width (mm) | Type |
|---|---|---|---|---|
| 6200 | 10 | 30 | 9 | Deep groove ball (light) |
| 6201 | 12 | 32 | 10 | Deep groove ball |
| 6202 | 15 | 35 | 11 | Deep groove ball |
| 6203 | 17 | 40 | 12 | Deep groove ball |
| 6204 | 20 | 47 | 14 | Deep groove ball |
| 6205 | 25 | 52 | 15 | Deep groove ball |
| 6206 | 30 | 62 | 16 | Deep groove ball |
| 6207 | 35 | 72 | 17 | Deep groove ball |
| 6208 | 40 | 80 | 18 | Deep groove ball |
| 6305 | 25 | 62 | 17 | Deep groove ball (heavy) |
| 6306 | 30 | 72 | 19 | Deep groove ball (heavy) |
| 6307 | 35 | 80 | 21 | Deep groove ball (heavy) |
| 6308 | 40 | 90 | 23 | Deep groove ball (heavy) |
| 6000 | 10 | 26 | 8 | Deep groove ball (extra-light) |
| 6003 | 17 | 35 | 10 | Deep groove ball (extra-light) |
| 6005 | 25 | 47 | 12 | Deep groove ball (extra-light) |
| 22210 | 50 | 90 | 23 | Spherical roller |
| 22211 | 55 | 100 | 25 | Spherical roller |
| 30204 | 20 | 47 | 15.25 | Tapered roller |
| 30205 | 25 | 52 | 16.25 | Tapered roller |
| 30206 | 30 | 62 | 17.25 | Tapered roller |
Dimensions follow ISO 15. When multiple bearings have the same bore, differentiate by (OD, width) or by visual type (ball vs roller). Suffixes like -2RS, -ZZ, -C3 do not change bore/OD/width.
Need the actual parts? We stock them in Noida.
Shri Narayan Machinery LLP — C-101, Sector 9, Noida · Call +91-9811104037 · GST-invoice on every order
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View productsInsize Measuring Instruments
Digital calipers, micrometers — the tools you use to measure bearing dimensions.
View productsFrequently Asked Questions — Bearing Finder by Dimensions (Bore + OD + Width)
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