30300 Series Tapered Roller Bearings – Metric, 15–100mm Bore
GBC-supplied 30300 series metric tapered roller bearings, 30302 to 30320, d 15–100 mm. ISO 355 / DIN 720. Interchangeable with SKF, FAG and NSK
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
METRIC TAPERED ROLLER BEARINGS — 30300 SERIES
Series Overview
The 30300 series (303xx) is the medium-duty metric tapered roller series, covering bore diameters from 15 mm to 100 mm. Larger outer diameter and wider width than the 30200 at any given bore delivers significantly higher load ratings — the standard choice when the 30200 load rating is insufficient.
All bearings conform to ISO 355 and DIN 720 standards. Supplied by GBC, MOQ 100 pieces.
Key Design Features
ISO 355 / DIN 720 dimensional standard
All metric tapered roller bearings conform to ISO 355 and DIN 720 boundary dimension standards, ensuring interchangeability with bearings from any ISO-compliant manufacturer.
Combined radial and axial load capacity
Tapered roller geometry handles simultaneous radial and one-directional axial thrust — essential for gearbox and drive shaft applications.
Interchangeable with SKF, FAG, NSK, Koyo
Dimensionally identical to equivalents from all major manufacturers. Direct drop-in replacement with no housing or shaft modification required.
Progressive load rating across bore range
Each series covers a continuous range of bore sizes with consistent load rating progression, enabling straightforward resizing for load changes.
Boundary dimensions: d bore · D outer diameter · T / B width (mm)
Complete Specification Table
Dimensions in mm · Load ratings in N · Weight in kg
30302 to 30311 — d 15–55 mm
| Bearing No. | d | D | T | Dynamic (N) | Static (N) | Weight (kg) |
|---|---|---|---|---|---|---|
| 30302 | 15 | 42 | 14.250 | 24,400 | 22,500 | 0.100 |
| 30303 | 17 | 47 | 15.250 | 30,300 | 28,400 | 0.130 |
| 30304 | 20 | 52 | 16.250 | 35,600 | 34,500 | 0.170 |
| 30305 | 25 | 62 | 18.250 | 50,200 | 50,100 | 0.260 |
| 30306 | 30 | 72 | 20.750 | 59,500 | 60,600 | 0.380 |
| 30307 | 35 | 80 | 22.750 | 80,400 | 85,600 | 0.520 |
| 30308 | 40 | 90 | 25.250 | 91,400 | 102,000 | 0.720 |
| 30309 | 45 | 100 | 27.250 | 114,000 | 130,000 | 0.960 |
| 30310 | 50 | 110 | 29.250 | 131,000 | 150,000 | 1.230 |
| 30311 | 55 | 120 | 31.500 | 150,000 | 172,000 | 1.560 |
30312 to 30320 — d 60–100 mm
| Bearing No. | d | D | T | Dynamic (N) | Static (N) | Weight (kg) |
|---|---|---|---|---|---|---|
| 30312 | 60 | 130 | 33.500 | 186,000 | 221,000 | 1.960 |
| 30313 | 65 | 140 | 36.000 | 206,000 | 242,000 | 2.410 |
| 30314 | 70 | 150 | 38.000 | 233,000 | 276,000 | 2.920 |
| 30315 | 75 | 160 | 40.000 | 250,000 | 318,000 | 3.580 |
| 30316 | 80 | 170 | 42.500 | 278,000 | 356,000 | 4.270 |
| 30317 | 85 | 180 | 44.500 | 304,000 | 292,000 | 4.970 |
| 30318 | 90 | 190 | 46.500 | 341,000 | 341,000 | 5.790 |
| 30319 | 95 | 200 | 49.500 | 368,000 | 483,000 | 6.800 |
| 30320 | 100 | 215 | 51.500 | 402,000 | 490,000 | 8.200 |
Typical Applications
The 30300 series bridges the gap between the compact 30200 and the heavy-duty 32300.
Industrial gearboxes
Speed reducers, helical and bevel gearboxes, agitator drives
Agricultural machinery
Tractor gearboxes, implement drives, harvester drivetrains
Mining and bulk handling
Conveyor gearboxes, crusher shafts, vibrating screen drives
Commercial vehicle drivetrains
Truck axle shaft and differential bearings
Need 30300 series bearings?
Contact us for pricing across 30302–30320. Interchangeable with SKF, FAG and NSK 30300 series.
GBC-supplied 30300 series metric tapered roller bearings, 30302 to 30320, d 15–100 mm. ISO 355 / DIN 720. Interchangeable with SKF, FAG and NSK
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Related products
-
LMF LMK LMH Linear Bearing LUU Series — Standard Flanged Extended Length Ball Bushing
-
LMEF LMEK Linear Bearing LUU Series — Euro Standard Flanged Extended Length Ball Bushing
-
LMES Series — Small Metric Linear Bearing Sealed and Open Type
-
LMEFC LMEKC Linear Bearing UU Series — Euro Flanged Sealed Ball Bushing with Locking Screw
-
LMHP Linear Bearing UU Series — Square Flanged Sealed Ball Bushing
-
LMBS Series — Inch Standard Linear Bearing Sealed and Open Type