NSK bearing cross reference chart can help you to match various rolling bearing designations to NSK bearing designation (refer to NSK bearing nomenclature). The competitive manufacturers are provided for a convenient source of unit substitution. They can be considered interchangeable in most instances, but for special applications, please contact Nodes bearings. Nodes bearings assumes no liability with respect to errors or omissions.
| Description | Interchange | ||||||
|---|---|---|---|---|---|---|---|
| NSK | SKF | TORR/FAF | FAG | MRC | NTN | ||
| Part Number | Inch | Rxx | Rxx | SxxK | Rxx | Rxx | Rxx |
| Extra small | 6xx | 6xx | 3xK | 6xx | 3x | 6xx | |
| Extra Light | 60xx | 60xx | 91xxK | 60xx | 1xxK | 60xx | |
| Light | 62xx | 62xx | 2xxK | 62xx | 2xxS | 62xx | |
| Medium | 63xx | 63xx | 3xxK | 63xx | 3xxS | 63xx | |
| Extra thin section | 68xx | 618xx | -- | 618xx | 18xxS | 68xx | |
| Very thin section | 69xx | 619xx | 93xxK | 619xx | 19xxS | 69xx | |
| Thin section | 16xxx | 16xxx | -- | 16xxx | -- | -- | |
| Maximum capacity, light | BL2xx | 2xx | 2xxW | 2xx | 2xxM | BL2xx | |
| Maximum capacity, medium | BL3xx | 3xx | 3xxW | 3xx | 3xxM | BL3xx | |
| Cartridge type | 633xx | -- | W3xx | -- | 3xxC | 633xx | |
| 632xx | -- | W2xx | -- | 2xxC | 632xx | ||
| Part Number Suffix | Two seals (non contact) | VV | 2RZ | -- | -- | -- | LLB |
| Two seals (contact) | DDU | 2RS1 | PP | 2RSR | ZZ | LLU | |
| One seal (contact) | DU | RS1 | P | RSR | Z | LU | |
| Two shields | ZZ | 2Z | DD | 2ZR | FF | ZZ | |
| One shield | Z | Z | D | ZR | F | Z | |
| Snap ring | NR | NR | G | NR | G | NR | |
| Steel cage | blank | J | blank | blank | blank | blank | |
| Brass cage | M | M | MBR | M | BRZ | L1 | |
| Heat stabilized 200C | X28 | S1 | -- | S1 | -- | PREFIX TS3 | |
| Tight clearance | C2 | C2 | H | C2 | Tight | C2 | |
| Normal clearance | blank | blank | R | blank | Nomal | blank | |
| Loose clearance | C3 | C3 | P | C3 | Loose | C3 | |
| Extra loose clearance | C4 | C4 | J | C4 | Extra Loose | C4 | |
| Electric motor grade | E | QE6 | -- | -- | -- | -- | |
| Description | Interchange | ||||||
|---|---|---|---|---|---|---|---|
| NSK | SKF | TORR/FAF | FAG | MRC | NTN | ||
| Part Number | Light | 72xx | 72xx | 72xx | 72xx | 72xx | 72xx |
| Medium | 73xx | 73xx | 73xx | 73xx | 73xx | 73xx | |
| Heavy | 74xx | 74xx | 74xx | 74xx | 74xx | 74xx | |
| Part Number Suffix | 40° contact | B | B | WN | B | PJ | B |
| 30° contact | A | -- | -- | -- | BLANK | BLANK | |
| 25° contact | A5 | ACD | -- | E | -- | -- | |
| 15° contact | C | CD | -- | C | R | C | |
| MACHINED BRASS CAGE | M | M | MBR | MP | BRZ | L1 | |
| PRESSED BRASS CAGE | Y | Y | BLANK | YP | -- | -- | |
| POLYAMIDE CAGE | TY | P | PRC | TVP | BKE | T2 | |
| STEEL CAGE | W | J | -- | JP | BLANK | J | |
| FLUSH GROUND FACES | G | G | BLANK | UO,UA | DU | G | |
| PETROCHEMICAL | BMPC | BECBM | -- | -- | PumpPac* | -- | |
*PumpPac is a registered trademark of SKF USA.
| NSK | SKF | TORR/FAF | MRC | NTN | ||
| Part Number | SELF-ALIGNING, EXTRA NARROW | 12xx | 12xx | -- | -- | 12xx |
|---|---|---|---|---|---|---|
| SELF-ALIGNING, NARROW | 13xx | 13xx | -- | -- | 13xx | |
| SELF-ALIGNING, WIDE | 22xx | 22xx | -- | -- | 22xx | |
| SELF-ALIGNING, EXTRA WIDE | 23xx | 23xx | -- | -- | 23xx | |
| DOUBLE ROW, MAXIMUM COMPLIMENT, LIGHT | 32xx | 52xxE | 52xxW | 52xxM | 32xx | |
| DOUBLE ROW, MAXIMUM COMPLIMENT, MEDIUM | 33xx | 53xxE | 53xxW | 53xxM | 33xx | |
| DOUBLE ROW, CONRAD, LIGHT | 52xx | 52xxA | 52xxK | 52xxC | 52xx | |
| DOUBLE ROW, CONRAD, MEDIUM | 53xx | 53xxA | 53xxK | 53xxC | 53xx | |
| Part Number Suffix | TWO SEALS | 2RS | 2RS1 | PP | ZZ | LLU |
| TWO SHIELDS | ZZ | 2Z | DD | FF | ZZ | |
| SNAP RING | NR | NR | G | G | NR | |
| POLYAMIDE CAGE | TNG | TN9 | PRB | -- | T2 | |
| STEEL CAGE | J | BLANK | BLANK | BLANK | J | |
| TAPERED BORE | K | K | -- | -- | K | |
| EXTRA CAPACITY | E | E | -- | -- | -- | |
| TIGHT CLEARANCE | C2 | C2 | H | C2 | C2 | |
| NORMAL CLEARANCE | BLANK | BLANK | R | BLANK | BLANK | |
| LOOSE CLEARANCE | C3 | C3 | P | C3 | C3 | |
| EXTRA LOOSE CLEARANCE | C4 | C4 | J | C4 | C4 |
| Description | Interchange | |||
|---|---|---|---|---|
| NSK | SKF | FAG | ||
| Part Number Prefix | SINGLE ROW, NO FLANGES ON OUTER RING | N | N | N |
| SINGLE ROW, NO FLANGES ON INNER RING | NU | NU | NU | |
| SINGLE ROW, 1 FLANGE INNER | NJ | NJ | NJ | |
| SINGLE ROW, 1 FLANGE OUTER | NF | NF | -- | |
| SINGLE ROW, 1 FLANGE INNER, WITH RETAINING RING | NUP | NUP | NUP | |
| SINGLE ROW, 1 FLANGE INNER w/STABALIZING RING | NH | NH | NH | |
| STABILIZING RING | HJ | HJ | HJ | |
| DOUBLE ROW, FLANGES OUTER/FANGES INNER | NNU/NN | NNU/NN | NNU/NN | |
| Part Number | LIGHT | 2xx | 2xx | 2xx |
| MEDUM | 3xx | 3xx | 3xx | |
| HEAVY | 4xx | 4xx | 4xx | |
| EXTRA LIGHT | 10xx | 10xx | 10xx | |
| LIGHT, WIDE | 22xx | 22xx | 22xx | |
| MEDIUM, WIDE | 23xx | 23xx | 23xx | |
| Part Number Suffix | POLYAMIDE CAGE | T | P | TVP2 |
| COMPOSITE HIGH TEMP (200F) CAGE | T7 | -- | -- | |
| MACHINED BRASS CAGE | M | M | M,M1 | |
| PRESSED STEEL CAGE | W,WS | J | JP1 | |
| HIGH CAPACITY DESIGN | E | EC | E | |
| FULL COMPLEMENT (NO CAGE) | V | V | V | |
| TIGHT CLEARANCE | C2 | C2 | C2 | |
| NORMAL CLEARANCE | BLANK | BLANK | BLANK | |
| LOOSE CLEARANCE | C3 | C3 | C3 | |
| EXTRA LOOSE CLEARANCE | C4 | C4 | C4 | |
| Description | Interchange | ||||
|---|---|---|---|---|---|
| NSK | SKF | TORR/FAF | FAG | ||
| Part Number | VERY LIGHT | 239xx | 239xx | 239xx | 239xx |
| LIGHT | 230xx | 230xx | 230xx | 230xx | |
| LIGHT, WIDE | 240xx | 240xx | 240xx | 240xx | |
| MEDIUM | 231xx | 231xx | 231xx | 231xx | |
| MEDIUM, WIDE | 241xx | 241xx | 241xx | 241xx | |
| HEAVY | 222xx | 222xx | 222xx | 222xx | |
| HEAVY, WIDE | 232xx | 232xx | 232xx | 232xx | |
| EXTRA HEAVY | 213xx | 213xx | 213xx | 213xx | |
| EXTRA HEAVY, WIDE | 223xx | 223xx | 223xx | 223xx | |
| Part Number Suffix | BRONZE CAGE, ONE PIECE, GUIDE RING | CAM,AM | CA,CACM | YM | M |
| BRONZE CAGE, TWO PIECE, GUIDE FLANGE | M | MC | BR | MB | |
| STEEL CAGE, TWO PIECE, GUIDE RING | C,CD | CJ,CC | CJ,VJ | BLANK | |
| POLYAMIDE CAGE, TWO PIECE | H | -- | VCF | TVPB | |
| TAPERED BORE 1:12 | K | K | K | K | |
| TAPERED BORE 1:30 | K30 | K30 | K | K30 | |
| CARBURIZED STEEL, COMPLETE BEARING | g | ECD | W40 | W209 | |
| CARBURIZED STEEL, INNER RING ONLY | g3 | ECB | W40I | W209B | |
| LUBE GROOVE & HOLES OUTER RING | E4 | W33 | W33 | S | |
| LUBE GROOVE & HOLES OUTER RING, INNER RING | E7* | W513 | W33W94 | SH40AB | |
| HOLES ONLY OUTER RING | E3 | W20 | W20 | SY | |
| HOLES INNER RING & GROOVE | E5 | W26 | W94 | H40AB | |
| NO RELUBE FEATURES | BLANK | BLANK | BLANK | -- | |
| PLUGS PROVIDED FOR OUTER RING HOLES | E42 | W77 | W84 | H40 | |
| COMBINATION W33, W4, W31 | E4P55 | C08507 | C08W33W4W31 | -- | |
| COMBINATION W33, W31 | E4U22 | W506 | W33W31 | -- | |
| COMBINATION W33, W26, W31 | E7U22 | C08W509 | W33W94W31 | SH40A | |
| OUTER RING WITH EXTRA CLOSE RUNNING ACCURACY | P52 | C04 | C04 | T52BN | |
| INNER RING WITH EXTRA CLOSE RUNNING ACCURACY | P53 | C02 | C02 | T52BE | |
| INNER AND OUTER RING W/EXTRA CLOSE RUNNING ACCURACY | P55 | C08 | C08 | T52BW | |
| SPECIAL INSPECTION MEASURES | U22 | W31 | W31 | -- | |
| INNER RING AND OUTER RING HEAT STABILIZED TO 200°C | S11 | S1 | -- | -- | |
| TIGHT CLEARANCE | C2 | C2 | C2 | C2 | |
| NORMAL CLEARANCE | BLANK | BLANK | BLANK | BLANK | |
| LOOSE CLEARANCE | C3 | C3 | C3 | C3 | |
| EXTRA LOOSE CLEARANCE | C4 | C4 | C4 | C4 | |
| Description | Interchange | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| NSK | *OLD NSK | SKF | FAG | BARDEN | OLD BARDEN | FAFNIR | SNFA | NTN | ||
| Part Number | ULTRA LIGHT SERIES | 79xx | 79xx | 719xx | 719xx | 19xx | - | 93xxWI | B | 79xx |
| EXTRA LIGHT SERIES | 70xx | 70xx | 70xx | 70xx | 1xx | 1xx | 91xxWI | X | 70xx | |
| LIGHT SERIES | 72xx | 72xx | 72xx | 72xx | 2xx | 2xx | 2xxWI | 2 | 72xx | |
| Part Number Suffix | 15° CONTACT ANGLE | C | C | CD | C | C | BLANK | 2* | 1 | C |
| 25° CONTACT ANGLE | A5 | A5 | ACD | E | E | 2* | 3* | 3 | - | |
| POLYAMIDE CAGE | TYN | TY | - | - | TMT | - | PRC | P | T2 | |
| PHENOLIC CAGE | TR | T | BLANK | T | TA | BLANK | CR | C | T1 | |
| SEALS | V1V | - | S* | 2RSD OR S PREFIX | RR | - | /S | - | ||
| DUPLEX UNIVERSAL | DU | DU | DG | DU | DU | D | DU | DU | GD2 | |
| SINGLE UNIVERSAL | SU | SU | G | U | U | - | SU | U | G | |
| EXTRA LIGHT PRELOAD | EL | EL | - | - | - | - | X | - | GL | |
| LIGHT PRELOAD | L | L | A | L | L | L | L | L | GN | |
| MEDIUM PRELOAD | M | M | B | M | M | M | M | M | GM | |
| HEAVY PRELOAD | H | H | C | H | H | H | H | H | GH | |
| CERAMIC BALLS | SN24 | SN24 | HC | HCB* | C* | - | C* | /NS | 5S* | |
| ABEC 7 PRECISION | P4Y | P4 | P4A | P4S | BLANK | BLANK | MM* | 7 | P4 | |
| ABEC 9 PRECISION | P2 | P2 | PA9A | - | ABEC9 | ABEC9 | MMX* | 9 | P2 | |
*TYN cage replaces TY, TR cage replaces T. Sealed (V1V) versions are a new option and P4Y tolerance specification replaces P4. P4Y tolerance specification have tighter bore and OD control than ABEC 7 (class 4 or P4) NSK supplies the following bearing series with P4Y tolerance: 7000; 7200;
| Description | Interchange | |||||||
|---|---|---|---|---|---|---|---|---|
| NSK | *OLD NSK | SKF | BARDEN | FAFNIR | SNFA | NTN | ||
| Part Number | ULTRA LIGHT ROBUST HIGH SPEED SERIES | XXBNR19 | XXBNC19 | 719XXCE | ZSB19XX | 93XXW0,WN,HX | VEBXX | HSB9XX |
| EXTRA LIGHT ROBUST HIGH SPEED SERIES | XXBNR10 | XXBNC10 | 70XXCE | ZSB1XX | 91XXW0,WN,HX | VEXXX | HSB0XX | |
| ULTRA LIGHT ROBUST HIGH SPEED SERIES FOR GRINDING SPINDLES | XXBGR19 | XXBNT19 | - | - | - | - | BNT9XX | |
| EXTRA LIGHT ROBUST HIGH SPEED SERIES FOR GRINDING SPINDLES | XXBGR10 | XXBNT10 | - | XXBX48 | - | - | BNT0XX | |
| Part Number Suffix | POLYAMIDE CAGE | TYN | TY | BLANK | TMT | PRC | P | - |
| PHENOLIC CAGE | TR | T | - | T | CR | C | BLANK | |
| DUPLEX UNIVERSAL | DU | DU | DG | DU | DU | DU | D | |
| SINGLE UNIVERSAL | SU | SU | G | U | SU | U | BLANK | |
| EXTRA LIGHT PRELOAD | EL | EL | - | - | X | - | GL | |
| LIGHT PRELOAD | L | L | A | L | L | L | GN | |
| CERAMIC BALLS | H | SN24 | HC | C* | C* | /NS | 5S* | |
| STEEL BALLS | S | BLANK | BLANK | BLANK | BLANK | BLANK | BLANK | |
| ABEC 7 PRECISION | P4Y | P4 | P4 | BLANK | MMV* | 7 | P4 | |
| ABEC 9 PRECISION | P2 | P2 | P2 | ABEC9 | MMX* | 9 | P2 | |
*BNR has replaced BNC series. P4Y tolerance specification replaces P4. P4Y tolerance specification have tighter bore and OD control than ABEC 7 (class 4 or P4) NSK supplies the following bearing series with P4Y tolerance: 7000; 7200; 7900; and BNR.
| Description | Interchange | |||||
|---|---|---|---|---|---|---|
| NSK | *OLD NSK | SKF | FAG | NTN | ||
| Part Number | ULTRA LIGHT DOUBLE ROW CYLINDRICAL SERIES | NN39XX | NN39XX | - | - | - |
| EXTRA LIGHT DOUBLE ROW CYLINDRICAL SERIES | NN30XX | NN30XX | NN30XX | NN30XX | NN30XX | |
| EXTRA LIGHT SINGLE ROW CYLINDRICAL SERIES | N10XX | N10XX | N10XX | N10XX | N10XX | |
| Part Number Suffix | NON-METALLIC CAGE | TB | T | TN,TN9 | - | - |
| BRASS CAGE | MB | M | BLANK | M | G1 | |
| TAPERED BORE | KR | K | UPK | K | K | |
| LUBE GROOVE AND HOLES ON OUTER RING | E44 | - | W33 | S | - | |
| MATCHED CLEARANCE, RINGS NOT TO BE MIXED | CCX | CCX | CX | CX | CXNA | |
| ABEC 7 PRECISION | P4 | P4 | SP | SP | P4 | |
*The outer ring machined lubrication groove and holes (E44) is now a standard feature. TB cage replaces T cage, MB replaces M and KR replaces K.
| NSK | *OLD NSK | SKF | NTN | ||
| Part Number | 30° ANGULAR CONTACT THRUST BEARINGS | XXBAR10 | XXBA10 | BTMXXA | HTA0XXADB |
|---|---|---|---|---|---|
| 40° ANGULAR CONTACT THRUST BEARINGS | XXBTR10 | XXBT10 | BTMXXB | HTA0XXDB | |
| Part Number Suffix | POLYAMIDE CAGE | TYN | TY | BLANK | T2 |
| PHENOLIC CAGE | TR | T | - | T1 | |
| DUPLEX UNIVERSAL | DU | DU | DB | GD2 | |
| SINGLE UNIVERSAL | SU | SU | - | G | |
| EXTRA LIGHT PRELOAD | EL | EL | - | - | |
| LIGHT PRELOAD | L | L | A | GN | |
| CERAMIC BALLS | H | SN24 | HC | 5S* | |
| STEEL BALLS | S | BLANK | BLANK | BLANK | |
| ABEC 7 PRECISION | P4A | P4A | P4A | P4 | |
| ABEC 9 PRECISION | P2A | P2A | PA9A | P2 |
*BAR and BTR series has replaced BA and BT series.
