Bearing Inserts
AELS200 Series Eccentric Collar Insert Bearings (AELS2)
The AELS2 series is a light-duty insert bearing with an eccentric locking collar: turning the collar grips the shaft without set screws. Spherical outer ring, same outside diameter and load ratings as AEL2 for the same shaft. Shaft sizes 12mm – 60mm; each size is listed with its dimensions and load ratings below.
Dimensions, Load Ratings & Part Numbers
| Shaft Dia. (mm) | Bearing Number | D (Outside Dia.) (mm) | B1 (Width with Collar) (mm) | B (Inner Ring Width) (mm) | C (Outer Ring Width) (mm) | rs (min. Chamfer) (mm) | r1s (min. Chamfer) (mm) | S (mm) | S1 (mm) | G (mm) | ds (Set Screw) | Cr (Dynamic Load) (N) | Cor (Static Load) (N) | f0 (Factor) | Mass (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12 | AELS201 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | M6×0.75 | 9600 | 4600 | 12.8 | 0.12 |
| 15 | AELS202 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | M6×0.75 | 9600 | 4600 | 12.8 | 0.11 |
| 17 | AELS203 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | M6×0.75 | 9600 | 4600 | 12.8 | 0.1 |
| 20 | AELS204 | 47 | 31 | 21.5 | 14 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | M6×0.75 | 12800 | 6650 | 13.2 | 0.17 |
| 25 | AELS205 | 52 | 31 | 21.5 | 15 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | M6×0.75 | 14000 | 7850 | 13.9 | 0.2 |
| 30 | AELS206 | 62 | 35.7 | 23.8 | 16 | 1 | 0.6 | 9 | 26.7 | 6 | M8×1 | 19500 | 11300 | 13.8 | 0.31 |
| 35 | AELS207 | 72 | 38.9 | 25.4 | 17 | 1.5 | 0.6 | 9.5 | 29.4 | 6.8 | M10×1.25 | 25700 | 15300 | 13.8 | 0.49 |
| 40 | AELS208 | 80 | 43.7 | 30.2 | 18 | 1.5 | 0.6 | 11 | 32.7 | 6.8 | M10×1.25 | 29100 | 17800 | 14 | 0.66 |
| 45 | AELS209 | 85 | 43.7 | 30.2 | 19 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | M10×1.25 | 32500 | 20400 | 14.1 | 0.73 |
| 50 | AELS210 | 90 | 43.7 | 30.2 | 20 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | M10×1.25 | 35000 | 23200 | 14.4 | 0.74 |
| 55 | AELS211 | 100 | 48.4 | 32.5 | 21 | 2 | 1.5 | 12 | 36.4 | 8 | M10×1.25 | 43500 | 29200 | 14.3 | 1 |
| 60 | AELS212 | 110 | 53.1 | 37.2 | 22 | 2 | 1.5 | 13.5 | 39.6 | 8 | M10×1.25 | 52500 | 36000 | 14.3 | 1.33 |
Dimensions and load ratings per the NTN catalogue (metric and inch bores). The catalogue number adds suffixes to the base number shown here; confirm the exact version and brand with us before ordering. Cr and Cor are basic dynamic and static load ratings in newtons.
AELS2 Equivalent Designations
Other brands sell these under different numbers. Equivalent designations share the same boundary dimensions. Seals, locking collar type and clearance can differ between brands, so confirm the exact version with us before ordering.
| Shaft Dia. (mm) | Our number | Also listed as | INA |
|---|---|---|---|
| 12 | AELS201 | CSA201 | RAE12-XL-NPP |
| 15 | AELS202 | CSA202 | RAE15-XL-NPP |
| 17 | AELS203 | CSA203 | RAE17-XL-NPP |
| 20 | AELS204 | CSA204 | RAE20-XL-NPP |
| 25 | AELS205 | CSA205 | RAE25-XL-NPP |
| 30 | AELS206 | CSA206 | RAE30-XL-NPP |
| 35 | AELS207 | CSA207 | RAE35-XL-NPP |
| 40 | AELS208 | CSA208 | RAE40-XL-NPP |
| 45 | AELS209 | CSA209 | RAE45-XL-NPP |
| 50 | AELS210 | CSA210 | RAE50-XL-NPP |
| 55 | AELS211 | CSA211 | RAE55-XL-NPP |
| 60 | AELS212 | CSA212 | RAE60-XL-NPP |
See the full bearing interchange chart.
Inch Shaft Sizes
The AELS2 insert bearing is also supplied with inch bores. The number carries a suffix for the shaft size (for example -104 is 1-1/4 inch). Outside dimensions and load ratings match the metric size in the table above; the set screw thread is the inch (UNF) size shown.
| Shaft Dia. (in) | Bearing Number | D (Outside Dia.) (mm) | B1 (Width with Collar) (mm) | B (Inner Ring Width) (mm) | C (Outer Ring Width) (mm) | rs (min. Chamfer) (mm) | r1s (min. Chamfer) (mm) | S (mm) | S1 (mm) | G (mm) | ds (Set Screw) | Cr (Dynamic Load) (N) | Cor (Static Load) (N) | f0 (Factor) | Mass (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 in (12.7 mm) | AELS201-008 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | 1/4-28UNF | 9600 | 4600 | 12.8 | 0.12 |
| 9/16 in (14.3 mm) | AELS202-009 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | 1/4-28UNF | 9600 | 4600 | 12.8 | 0.11 |
| 5/8 in (15.9 mm) | AELS202-010 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | 1/4-28UNF | 9600 | 4600 | 12.8 | 0.11 |
| 11/16 in (17.5 mm) | AELS203-011 | 40 | 28.6 | 19 | 12 | 0.6 | 0.6 | 6.5 | 22.1 | 4.8 | 1/4-28UNF | 9600 | 4600 | 12.8 | 0.1 |
| 3/4 in (19.1 mm) | AELS204-012 | 47 | 31 | 21.5 | 14 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | 1/4-28UNF | 12800 | 6650 | 13.2 | 0.17 |
| 13/16 in (20.6 mm) | AELS205-013 | 52 | 31 | 21.5 | 15 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | 1/4-28UNF | 14000 | 7850 | 13.9 | 0.2 |
| 7/8 in (22.2 mm) | AELS205-014 | 52 | 31 | 21.5 | 15 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | 1/4-28UNF | 14000 | 7850 | 13.9 | 0.2 |
| 15/16 in (23.8 mm) | AELS205-015 | 52 | 31 | 21.5 | 15 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | 1/4-28UNF | 14000 | 7850 | 13.9 | 0.2 |
| 1 in (25.4 mm) | AELS205-100 | 52 | 31 | 21.5 | 15 | 1 | 0.6 | 7.5 | 23.5 | 4.8 | 1/4-28UNF | 14000 | 7850 | 13.9 | 0.2 |
| 1-1/16 in (27 mm) | AELS206-101 | 62 | 35.7 | 23.8 | 16 | 1 | 0.6 | 9 | 26.7 | 6 | 5/16-24UNF | 19500 | 11300 | 13.8 | 0.31 |
| 1-1/8 in (28.6 mm) | AELS206-102 | 62 | 35.7 | 23.8 | 16 | 1 | 0.6 | 9 | 26.7 | 6 | 5/16-24UNF | 19500 | 11300 | 13.8 | 0.31 |
| 1-3/16 in (30.2 mm) | AELS206-103 | 62 | 35.7 | 23.8 | 16 | 1 | 0.6 | 9 | 26.7 | 6 | 5/16-24UNF | 19500 | 11300 | 13.8 | 0.31 |
| 1-1/4 in (31.8 mm) | AELS206-104 | 62 | 35.7 | 23.8 | 16 | 1 | 0.6 | 9 | 26.7 | 6 | 5/16-24UNF | 19500 | 11300 | 13.8 | 0.31 |
| 1-1/4 in (31.8 mm) | AELS207-104 | 72 | 38.9 | 25.4 | 17 | 1.5 | 0.6 | 9.5 | 29.4 | 6.8 | 3/8-24UNF | 25700 | 15300 | 13.8 | 0.49 |
| 1-5/16 in (33.3 mm) | AELS207-105 | 72 | 38.9 | 25.4 | 17 | 1.5 | 0.6 | 9.5 | 29.4 | 6.8 | 3/8-24UNF | 25700 | 15300 | 13.8 | 0.49 |
| 1-3/8 in (34.9 mm) | AELS207-106 | 72 | 38.9 | 25.4 | 17 | 1.5 | 0.6 | 9.5 | 29.4 | 6.8 | 3/8-24UNF | 25700 | 15300 | 13.8 | 0.49 |
| 1-7/16 in (36.5 mm) | AELS207-107 | 72 | 38.9 | 25.4 | 17 | 1.5 | 0.6 | 9.5 | 29.4 | 6.8 | 3/8-24UNF | 25700 | 15300 | 13.8 | 0.49 |
| 1-1/2 in (38.1 mm) | AELS208-108 | 80 | 43.7 | 30.2 | 18 | 1.5 | 0.6 | 11 | 32.7 | 6.8 | 3/8-24UNF | 29100 | 17800 | 14 | 0.66 |
| 1-9/16 in (39.7 mm) | AELS208-109 | 80 | 43.7 | 30.2 | 18 | 1.5 | 0.6 | 11 | 32.7 | 6.8 | 3/8-24UNF | 29100 | 17800 | 14 | 0.66 |
| 1-5/8 in (41.3 mm) | AELS209-110 | 85 | 43.7 | 30.2 | 19 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 32500 | 20400 | 14.1 | 0.73 |
| 1-11/16 in (42.9 mm) | AELS209-111 | 85 | 43.7 | 30.2 | 19 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 32500 | 20400 | 14.1 | 0.73 |
| 1-3/4 in (44.5 mm) | AELS209-112 | 85 | 43.7 | 30.2 | 19 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 32500 | 20400 | 14.1 | 0.73 |
| 1-13/16 in (46 mm) | AELS210-113 | 90 | 43.7 | 30.2 | 20 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 35000 | 23200 | 14.4 | 0.74 |
| 1-7/8 in (47.6 mm) | AELS210-114 | 90 | 43.7 | 30.2 | 20 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 35000 | 23200 | 14.4 | 0.74 |
| 1-15/16 in (49.2 mm) | AELS210-115 | 90 | 43.7 | 30.2 | 20 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 35000 | 23200 | 14.4 | 0.74 |
| 2 in (50.8 mm) | AELS210-200 | 90 | 43.7 | 30.2 | 20 | 1.5 | 1.5 | 11 | 32.7 | 6.8 | 3/8-24UNF | 35000 | 23200 | 14.4 | 0.74 |
| 2 in (50.8 mm) | AELS211-200 | 100 | 48.4 | 32.5 | 21 | 2 | 1.5 | 12 | 36.4 | 8 | 3/8-24UNF | 43500 | 29200 | 14.3 | 1 |
| 2-1/16 in (52.4 mm) | AELS211-201 | 100 | 48.4 | 32.5 | 21 | 2 | 1.5 | 12 | 36.4 | 8 | 3/8-24UNF | 43500 | 29200 | 14.3 | 1 |
| 2-1/8 in (54 mm) | AELS211-202 | 100 | 48.4 | 32.5 | 21 | 2 | 1.5 | 12 | 36.4 | 8 | 3/8-24UNF | 43500 | 29200 | 14.3 | 1 |
| 2-3/16 in (55.6 mm) | AELS211-203 | 100 | 48.4 | 32.5 | 21 | 2 | 1.5 | 12 | 36.4 | 8 | 3/8-24UNF | 43500 | 29200 | 14.3 | 1 |
| 2-1/4 in (57.2 mm) | AELS212-204 | 110 | 53.1 | 37.2 | 22 | 2 | 1.5 | 13.5 | 39.6 | 8 | 3/8-24UNF | 52500 | 36000 | 14.3 | 1.33 |
| 2-5/16 in (58.7 mm) | AELS212-205 | 110 | 53.1 | 37.2 | 22 | 2 | 1.5 | 13.5 | 39.6 | 8 | 3/8-24UNF | 52500 | 36000 | 14.3 | 1.33 |
| 2-3/8 in (60.3 mm) | AELS212-206 | 110 | 53.1 | 37.2 | 22 | 2 | 1.5 | 13.5 | 39.6 | 8 | 3/8-24UNF | 52500 | 36000 | 14.3 | 1.33 |
| 2-7/16 in (61.9 mm) | AELS212-207 | 110 | 53.1 | 37.2 | 22 | 2 | 1.5 | 13.5 | 39.6 | 8 | 3/8-24UNF | 52500 | 36000 | 14.3 | 1.33 |
Typical Applications
- Replacement inserts for worn mounted units
- Conveyors, fans and blowers
- Agricultural and food-processing machinery
- OEM machinery with custom housings
Frequently Asked Questions
What sizes are available in the AELS2 series?
AELS2 units are available from 12mm – 60mm bore, as listed in the dimension table below. Each size has its own part number for ordering.
How is the AELS2 insert bearing locked to the shaft?
AELS2 insert bearings use eccentric locking collar locking and have a spherical outer ring, so they seat in a matching housing and self-align. Available from NTN, FAG, SKF, FYH, Asahi, DTC and SLS.
What is AELS2 typically used for?
Common applications include replacement inserts for worn mounted units and conveyors, fans and blowers, and similar general industrial shaft-support duties.
Can’t find your size?
We supply sizes, brands and special versions of mounted bearing units that are not listed on this page. Type the exact size or designation you need and send it to us for a quote.
Need pricing on AELS2 units?
Share your shaft size and quantity — our technical team will confirm availability and pricing within one business day.