Imperial Inch Angular Contact Ball Bearings — Interchange Chart
Imperial angular contact ball bearings carry combined radial and one-direction axial loads in pumps, compressors and machine-tool spindles of British and older European design. Match the same size across ALS / AMS, LS.AC / MS.AC and LJT / MJT numbers. The size number is the bore in eighths of an inch — size 8 = 1" bore (25.40 mm). Sizes run from 1/2" to 7 1/2".
ALS / LS.AC / LJT — Light series
Light-section imperial angular contact ball bearings for combined radial and one-direction axial loads.
| Bore (inch) | Bore (mm) | SKF | FAG | RHP | Quote |
|---|---|---|---|---|---|
| 1/2" | 12.70 | ALS 4 | LS.AC 5 | LJT 1/2 | Quote |
| 5/8" | 15.88 | ALS 5 | LS.AC 7 | LJT 5/8 | Quote |
| 3/4" | 19.05 | ALS 6 | LS.AC 8 | LJT 3/4 | Quote |
| 7/8" | 22.22 | ALS 7 | LS.AC 9 | LJT 7/8 | Quote |
| 1" | 25.40 | ALS 8 | LS.AC 10 | LJT 1 | Quote |
| 1 1/8" | 28.57 | ALS 9 | LS.AC 11 | LJT 1 1/8 | Quote |
| 1 1/4" | 31.75 | ALS 10 | LS.AC 12 | LJT 1 1/4 | Quote |
| 1 3/8" | 34.92 | ALS 11 | LS.AC 12.1/2 | LJT 1 3/8 | Quote |
| 1 1/2" | 38.10 | ALS 12 | LS.AC 13 | LJT 1 1/2 | Quote |
| 1 5/8" | 41.27 | ALS 13 | LS.AC 13.1/2 | LJT 1 5/8 | Quote |
| 1 3/4" | 44.45 | ALS 14 | LS.AC 14 | LJT 1 3/4 | Quote |
| 1 7/8" | 47.63 | ALS 15 | LS.AC 14.1/2 | LJT 1 7/8 | Quote |
| 2" | 50.80 | ALS 16 | LS.AC 15 | LJT 2 | Quote |
| 2 1/4" | 57.15 | ALS 18 | LS.AC 16 | LJT 2 1/4 | Quote |
| 2 1/2" | 63.50 | ALS 20 | LS.AC 17 | LJT 2 1/2 | Quote |
| 2 3/4" | 69.85 | ALS 22 | LS.AC 18 | LJT 2 3/4 | Quote |
| 3" | 76.20 | ALS 24 | LS.AC 19 | LJT 3 | Quote |
| 3 1/4" | 82.55 | ALS 26 | LS.AC 19.1/2 | LJT 3 1/4 | Quote |
| 3 1/2" | 88.90 | ALS 28 | LS.AC 20 | LJT 3 1/2 | Quote |
| 3 3/4" | 95.25 | ALS 30 | LS.AC 20.1/2 | LJT 3 3/4 | Quote |
| 4" | 101.60 | ALS 32 | LS.AC 21 | LJT 4 | Quote |
| 4 1/4" | 107.95 | ALS 34 | LS.AC 21.1/2 | LJT 4 1/4 | Quote |
| 4 1/2" | 114.30 | ALS 36 | LS.AC 22 | LJT 4 1/2 | Quote |
| 4 3/4" | 120.65 | ALS 38 | LS.AC 22.1/2 | LJT 4 3/4 | Quote |
| 5" | 127.00 | ALS 40 | LS.AC 23 | LJT 5 | Quote |
| 5 1/2" | 139.70 | ALS 44 | LS.AC 23.1/2 | LJT 5 1/2 | Quote |
| 6" | 152.40 | ALS 48 | LS.AC 24 | LJT 6 | Quote |
| 6 1/2" | 165.10 | ALS 52 | LS.AC 24.1/2 | LJT 6 1/2 | Quote |
| 7" | 177.80 | ALS 56 | LS.AC 25 | LJT 7 | Quote |
| 7 1/2" | 190.50 | ALS 60 | LS.AC 25.1/2 | LJT 7 1/2 | Quote |
AMS / MS.AC / MJT — Medium series
Medium-section imperial angular contact ball bearings for heavier combined loads.
| Bore (inch) | Bore (mm) | SKF | FAG | RHP | Quote |
|---|---|---|---|---|---|
| 1/2" | 12.70 | AMS 4 | MS.AC 5 | MJT 1/2 | Quote |
| 5/8" | 15.88 | AMS 5 | MS.AC 7 | MJT 5/8 | Quote |
| 3/4" | 19.05 | AMS 6 | MS.AC 8 | MJT 3/4 | Quote |
| 7/8" | 22.22 | AMS 7 | MS.AC 9 | MJT 7/8 | Quote |
| 1" | 25.40 | AMS 8 | MS.AC 10 | MJT 1 | Quote |
| 1 1/8" | 28.57 | AMS 9 | MS.AC 11 | MJT 1 1/8 | Quote |
| 1 1/4" | 31.75 | AMS 10 | MS.AC 12 | MJT 1 1/4 | Quote |
| 1 3/8" | 34.92 | AMS 11 | MS.AC 12.1/2 | MJT 1 3/8 | Quote |
| 1 1/2" | 38.10 | AMS 12 | MS.AC 13 | MJT 1 1/2 | Quote |
| 1 5/8" | 41.27 | AMS 13 | MS.AC 13.1/2 | MJT 1 5/8 | Quote |
| 1 3/4" | 44.45 | AMS 14 | MS.AC 14 | MJT 1 3/4 | Quote |
| 1 7/8" | 47.63 | AMS 15 | MS.AC 14.1/2 | MJT 1 7/8 | Quote |
| 2" | 50.80 | AMS 16 | MS.AC 15 | MJT 2 | Quote |
| 2 1/4" | 57.15 | AMS 18 | MS.AC 16 | MJT 2 1/4 | Quote |
| 2 1/2" | 63.50 | AMS 20 | MS.AC 17 | MJT 2 1/2 | Quote |
| 2 3/4" | 69.85 | AMS 22 | MS.AC 18 | MJT 2 3/4 | Quote |
| 3" | 76.20 | AMS 24 | MS.AC 19 | MJT 3 | Quote |
| 3 1/4" | 82.55 | AMS 26 | MS.AC 19.1/2 | MJT 3 1/4 | Quote |
| 3 1/2" | 88.90 | AMS 28 | MS.AC 20 | MJT 3 1/2 | Quote |
| 3 3/4" | 95.25 | AMS 30 | MS.AC 20.1/2 | MJT 3 3/4 | Quote |
| 4" | 101.60 | AMS 32 | MS.AC 21 | MJT 4 | Quote |
| 4 1/4" | 107.95 | AMS 34 | MS.AC 21.1/2 | MJT 4 1/4 | Quote |
| 4 1/2" | 114.30 | AMS 36 | MS.AC 22 | MJT 4 1/2 | Quote |
| 4 3/4" | 120.65 | AMS 38 | MS.AC 22.1/2 | MJT 4 3/4 | Quote |
| 5" | 127.00 | AMS 40 | MS.AC 23 | MJT 5 | Quote |
| 5 1/2" | 139.70 | AMS 44 | MS.AC 23.1/2 | MJT 5 1/2 | Quote |
| 6" | 152.40 | AMS 48 | MS.AC 24 | MJT 6 | Quote |
| 6 1/2" | 165.10 | AMS 52 | MS.AC 24.1/2 | MJT 6 1/2 | Quote |
| 7" | 177.80 | AMS 56 | MS.AC 25 | MJT 7 | Quote |
| 7 1/2" | 190.50 | AMS 60 | MS.AC 25.1/2 | MJT 7 1/2 | Quote |
Can't find your inch bearing?
Send the number stamped on your old bearing, or bore × OD × width. SLS sources inch angular contact ball bearingsfrom India and overseas and confirms the exact equivalent before dispatch.
Send an enquiryBrand names and catalogue numbers are used only for size cross-reference and remain the property of their owners. SLS is not affiliated with them. Always confirm dimensions against your existing bearing; stock is confirmed only when quoted.