20380NSKThrust
20380 is a NSK thrust bearing, dynamic rating 731,000 lbs, weight 149.685 kg. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 153
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
No bore / outside diameter data - cross-section cannot be generated.
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.
Notes
Thrust bearing ratings are axial values Ca / Coa; T is the overall height. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Load ratings & speeds
| Basic dynamic axial rating Ca (lbs) | 731000 |
|---|---|
| Basic static axial rating Coa (lbs) | 3260000 |
| Limiting speed - oil (rpm) | 530 |
Weight
| Weight (kg) | 149.685 |
|---|
Mounting dimensions (fillets / shoulders)
| Chamfer r (in) | 0.197 |
|---|---|
| Shaft shoulder da min (in) | 21.654 |
| Housing shoulder Da (in) | 19.695 |
Bearing life (ISO 281 basic rating life)
| C / P | Equivalent load P (N) | L10 (106 rev) | L10h at 100 rpm |
|---|---|---|---|
| 4 | 812,913 | 102 | 16,932 |
| 6 | 541,942 | 392 | 65,416 |
| 8 | 406,456 | 1,024 | 170,667 |
| 10 | 325,165 | 2,154 | 359,072 |
| 15 | 216,777 | 8,323 | 1,387,244 |
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 3,251,650 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
| Brand | NSK |
|---|---|
| Source catalogue | NSK inch product catalogue |
| Catalogue page | p.156 (ratings) |
Dimensions in inches and millimetres, load ratings in lbs.
Request a quotation for 20380
Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.