INA
Unknown
RFQ
Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
INA SL181872-E Industrial Bearing is a core machine element that reduces shaft friction and supports loads to improve equipment efficiency and service life. It should be selected according to load direction, speed, and mounting space in motors, pumps, gearboxes, conveyors, and other machinery.
Bearings typically consist of inner ring, outer ring, rolling elements, cage, or sliding contact surfaces, with seals, shields, housings, or sleeves added depending on type. Lubrication and sealing conditions have a major impact on performance.
Select by shaft diameter, load direction, speed, mounting space, sealing/lubrication condition, and compatibility with the existing part number.
| Symbol | Value | Description |
|---|---|---|
| ≈m | 11,56 kg | Weight |
| Cr | 500.000 N | Basic dynamic load rating, radial |
| C0r | 1.010.000 N | Basic static load rating, radial |
| Cur | 104.000 N | Fatigue load limit, radial |
| nG | 770 1/min | Limiting speed |
| nϑr | 530 1/min | Reference speed |
| Symbol | Value | Description |
|---|---|---|
| d | 360 mm | Bore diameter |
| D | 440 mm | Outside diameter |
| B | 38 mm | Width |
| r1, 2 min | 2,1 mm | Minimum chamfer dimension |
| Symbol | Value | Description |
|---|---|---|
| da min | 387 mm | Min. shoulder diameter for mounting, inner ring |
| Da max | 413,5 mm | Max. shoulder diameter for mounting, housing |
| ra max | 2,1 mm | Max. fillet radius |
| Symbol | Value | Description |
|---|---|---|
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 120 °C | Operating temperature max. |
| Code | Description |
|---|---|
| CN (Group N) | Radial clearance group |
| PN | Tolerance class |
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
SL181872ESL181872 ESL181872INASL181872EINA SL181872 EINASL181872 EINA SL181872EINASL181872RFQ
Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)
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