30220 Tapered Roller Bearing 100x180x37mm Single Row For Gearbox Reducer

Product Overview
- 30220 is open single‑row tapered roller bearing made of GCr15 chrome steel.
- It handles combined radial and one‑direction axial loads, widely used on heavy‑duty transmission and axle assemblies.
- Cone and cup are fully separable, you can fit inner and outer parts separately during installation.
- No built‑in seals, proper grease or oil lubrication is required on site.
- Preload adjustment is needed when mounting to get stable running performance for heavy working conditions.
- *Need a quick quote? Just send us your bearing model & quantity — we’ll get back to you fast.
Key Specifications
| Item |
Specification |
| Bearing Model |
30220 |
| Bearing Type |
Single Row Tapered Roller Bearing |
| Bore(d) |
100 mm |
| Outer Diameter(D) |
180 mm |
| Total Width(T) |
37 mm |
| Inner Ring Width(B) |
34 mm |
| Outer Ring Width(C) |
29 mm |
| Basic Dynamic Load(Cr) |
304.0 kN |
| Basic Static Load(C0r) |
320.0 kN |
| Limiting Speed(Grease) |
3000 r/min |
| Limiting Speed(Oil) |
3600 r/min |
| Seal Type |
Open Type |
| Cage Material |
Sheet Steel Cage |
| Material |
GCr15 Chrome Bearing Steel |
| Tolerance Class |
P0 |
| Number Of Row |
Single Row |
| Internal Clearance |
CN(Normal Clearance) |
| Weight |
3.72 kg |
Main Features
- Tapered roller design takes mixed radial and single‑direction axial loads at the same time.
- Separable cone and cup simplify fitting, removal and field replacement work.
- Sheet steel cage holds rollers steady under continuous heavy‑load operation.
- Open‑style structure, users can choose suitable lubricant for actual working environment.
- Solid steel construction delivers good wear resistance for heavy‑duty running cycles.
- Standard metric dimension, direct swap‑in for many existing industrial and vehicle units.
Typical Applications
- Heavy‑duty gearbox and reducer transmission assemblies
- Construction machinery and off‑road equipment shaft supports
- Vehicle axle and wheel hub supporting positions
- Mining equipment and heavy conveyor drive parts
- General industrial machinery requiring combined load bearing support
*Ready stock. Short lead time. Fast delivery. Send us your bearing list and let’s get started!






Why Choose GQZ Bearing
- 30 years professional bearing industry experience
- ISO certified strict quality inspection
- Flexible OEM & private label customization
- 3-5 days fast delivery for stocked bearings
- Full bearing series, universal interchangeable size
- Factory direct price & reliable after-sales service
FAQ
Q1: Can 30220 bear both radial and axial loads?
A1: Yes, it supports combined radial load plus one‑direction axial load.
Q2: Is this bearing separable?
A2: Yes, cone and cup can be taken apart for separate installation.
Q3: Does 30220 need preload adjustment?
A3: Preload setting is required during mounting to achieve proper working condition.
Q4: Is this bearing pre‑greased?
A4: It is open‑type without seals, you need to add lubricant on assembly.
Q5: What industries commonly use 30220?
A5: Mainly for gearboxes, construction machinery, vehicle axles and heavy transmission equipment.
*Need custom bearings? Share your drawings, specifications or requirements — we’ll find the right solution for you.