L Series Tapered Roller Bearings – L44643 / L521949 / L540049 / LL225749 Inch Range
GBC-supplied L and LL series inch tapered roller bearings, d 16–197 mm. Separable cone and cup. Interchangeable with SKF, FAG, NSK and Timken
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
L / LL SERIES INCH TAPERED ROLLER BEARINGS
Series Overview
The L and LL series are inch-dimensioned, single-row tapered roller bearings spanning bore diameters from 15.875 mm (L21549) to 196.850 mm (L540049). The LL prefix denotes a longer cup within the same bore class, providing a larger contact surface and higher load rating.
The series covers applications from small precision instrument bearings to large-bore heavy industrial driveshafts. Supplied by GBC as matched cone-and-cup assemblies, interchangeable with SKF, FAG, NSK and Timken. MOQ 100 pieces.
Key Design Features
Wide bore range from instrument to heavy-industrial
d 16 mm to d 197 mm within a single series prefix.
Combined radial and axial load capacity
Tapered roller geometry enables simultaneous radial and one-directional axial thrust capacity.
L and LL suffix distinction
LL prefix indicates a longer cup providing a larger contact surface and higher load rating in the same bore class.
Direct interchange with major brands
Dimensionally equivalent to SKF, FAG, NSK and Timken L and LL series. Drop-in replacement.
Boundary dimensions: d bore · D outer diameter · T / B width (mm)
Complete Specification Table
Dimensions in mm · Load ratings in N · Weight in kg
L21xxx / L44xxx / L45xxx — small bore (d 16–29 mm)
| Bearing No. | d | D | T | Dynamic (N) | Static (N) | Weight (kg) |
|---|---|---|---|---|---|---|
| L21549/L21511 | 15.875 | 34.988 | 10.998 | 14,100 | 13,900 | 0.05 |
| L44642L/10 | 25.400 | 50.292 | 15.875 | 27,800 | 32,900 | 0.13 |
| L44643/10 | 25.400 | 50.292 | 14.224 | 27,800 | 32,900 | 0.12 |
| L44643L/10 | 25.400 | 50.292 | 14.224 | 27,800 | 32,900 | 0.13 |
| L44649/10 | 26.988 | 50.292 | 14.224 | 27,800 | 32,900 | 0.11 |
| L45449/10 | 29.000 | 50.292 | 14.224 | 27,700 | 36,200 | 0.11 |
L68xxx / L521xxx / L540xxx / L610xxx — medium to large bore
| Bearing No. | d | D | T | Dynamic (N) | Static (N) | Weight (kg) |
|---|---|---|---|---|---|---|
| L68149/10 | 34.988 | 59.974 | 15.875 | 35,500 | 49,300 | 0.17 |
| L68149/11 | 34.988 | 59.974 | 15.875 | 35,500 | 49,300 | 0.18 |
| L521949/10 | 107.950 | 146.050 | 21.433 | 88,900 | 186,000 | 0.99 |
| L540049/10 | 196.850 | 254.000 | 28.575 | 195,000 | 408,000 | 3.26 |
| L610549/10 | 63.500 | 94.458 | 19.050 | 62,000 | 108,000 | 0.45 |
LL225xxx — long-cup series (d 127 mm)
| Bearing No. | d | D | T | Dynamic (N) | Static (N) | Weight (kg) |
|---|---|---|---|---|---|---|
| LL225749/10 | 127.000 | 165.895 | 18.258 | 83,500 | 153,000 | 0.92 |
Typical Applications
L and LL series bearings appear across a wide range of inch-shaft applications.
Agricultural equipment
Row crop cultivator pivots, planter drive shafts, small implement wheel hubs
Light to medium gearboxes
Speed reducer shafts, conveyor drive gearboxes, pump drive units
Vehicle and trailer axles
Light trailer axle ends, 4WD front hub bearings, agricultural trailer hubs
Industrial drive shafts (L521/L540)
Large conveyor head pulley shafts, heavy-duty mill drive shafts
Need an L or LL series bearing?
Contact us for pricing, stock and interchange reference against SKF, FAG, NSK and Timken L series equivalents.
GBC-supplied L and LL series inch tapered roller bearings, d 16–197 mm. Separable cone and cup. Interchangeable with SKF, FAG, NSK and Timken
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
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