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Roller & needle bearings
Tapered roller bearings
Combined radial and one-way axial load, used in pairs. Axles, hubs, gearboxes, mining machinery.
Roller & needle bearings
Technical data
Series
302 · 303 · 320 · 322 · 323 · 330 · 331
Size range
⌀ 15–340 mm
Standards
ISO 355 · GB/T 297
Typical applications
Common sizes
mm| model | d | D | T | B |
|---|---|---|---|---|
| 30204 | 20 | 47 | 15.25 | 14 |
| 30205 | 25 | 52 | 16.25 | 15 |
| 30206 | 30 | 62 | 17.25 | 16 |
| 30207 | 35 | 72 | 18.25 | 17 |
| 30304 | 20 | 52 | 16.25 | 15 |
| 30305 | 25 | 62 | 18.25 | 17 |
| 30306 | 30 | 72 | 20.75 | 19 |
| 30307 | 35 | 80 | 22.75 | 21 |
General specifications
Material
GCr15 · ШХ15 · AISI 52100 / SUJ2 · 100Cr6
Hardness
61–65 HRC
Precision classes
P0 (PN) / P6 / P5 / P4 · P2 под заказ · ISO 492 · ГОСТ 0/6/5/4
Radial clearance
C2 / C0 / C3 / C4 / C5 · ISO 5753
Cage
steel · brass · PA66
Seals
ZZ · 2RS · open
Operating temperature
−40 … +120 °C · S0 / S1 / S2: +150 / +200 / +250 °C
Vibration & noise
Z1–Z3 · V1–V3 · ISO 15242
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