Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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You entered NJ18-670EMA. This table explores the base group NJ18; it does not preserve or approve every requested suffix. Search your complete marking first →
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One base designation across loaded brands
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Dimensions verified
“NJ18” across 3 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKFNJ 18/630 ECMA/HB1630 × 780 × 69 mm | FAGNJ18/630-M1630 × 780 × 69 mm | TIMKENNJ18/630EMAC3630 × 780 × 69 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | TIMKEN |
| Designation | NJ 18/630 ECMA/HB1 | NJ18/630-M1 | NJ18/630EMAC3 |
| Product family | Cylindrical roller bearings | — | Cylindrical 1-Row |
| Detailed type | Single row cylindrical roller bearing, nj design | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | — | NCS-442710 |
| Bore diameterd | 630 mm | 630 mm | 630 mm |
| Outside diameterD | 780 mm | 780 mm | 780 mm |
| WidthB | 69 mm | 69 mm | 69 mm |
| Basic dynamic load ratingC | 1100 kN | 1140 kN | 1240 kN |
| Basic static load ratingC0 | 2500 kN | 2600 kN | 2590 kN |
| Fatigue load limitPu | 183 kN | 232 kN | — |
| Reference speednref | 750 r/min | — | — |
| Limiting speednG | 950 r/min | 1460 r/min | — |
| Mass≈m | 75 kg | 71.76 kg | 76 kg |
| Internal clearance | CN | — | — |
| Sealing | Without | — | Open |
| Cage | Machined brass | — | Window Brass cage |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 150 °C | — |
| Calculation Factors | |||
| K Factor | — | — | 0.00 |
| Y1 Factor | — | — | 0.00 |
| Y2 Factor | — | — | 0.00 |
| Y0 Factor | — | — | 0.00 |
| E Factor | — | — | 0.00 |
| Cg Factor | — | — | 0.2643 |
| Engineering — Abutment dimensions | |||
| Diameter of spacer sleeved a | max. 662 mm | — | — |
| Diameter of shaft abutmentd b | min. 685 mm | — | — |
| Diameter of housing abutmentD a | max. 765 mm | — | — |
| Radius of filletr a | max. 3 mm | — | — |
| Engineering — Calculation data | |||
| Minimum load factork r | 0.1 | — | — |
| Limiting valuee | 0.2 | — | — |
| Calculation factorY | 0.6 | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter of inner ringd 1 | ≈ 682 mm | — | — |
| Shoulder diameter of outer ringD 1 | ≈ 724 mm | — | — |
| Raceway diameter of inner ringF | 667 mm | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — |
| Permissible axial displacements | max. 1.5 mm | — | — |
| Logistics | |||
| Product net weight | 75.0 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 372313 | — |
| Material Number | — | — | 000000000190067507 |
| Gpsd Group | — | F01 | — |
| World Assembly Part Number | — | — | NJ18/630EMA |
| Product Line Id | — | 75 | — |
| Inner Ring Part Number | — | — | 630ARJE18 |
| Outer Ring Part Number | — | — | 630ERUE18 |
| Drawing Number | — | — | M959637 |
| Upc | — | — | 0013992344663 |
| Official Source System | — | — | CORE BP - DS DF |
| Official Last Run | — | — | 2026-08-23T20:02:47.753 |
| Product identity | |||
| Official product category | Cylindrical roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings | — | — |
| Structure group ID | BC1_001_101 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | Yes | — | — |
| Product Identity | |||
| Short Description | — | Cylindrical roller bearing | — |
| Type Description | — | — | Cylindrical 1-Row |
| Construction | — | — | Single Row Cylindrical Roller Bearing | Imperial Series | 24.8032 in Bore | 30.7087 in OD | 2.7165 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | C3 Clearance |
| Number Of Rows | 1 | — | 1 |
| Tapered Bore | — | — | N |
| Properties | |||
| Bearing part | Complete bearing | — | — |
| Axial displacement capability | In one direction | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Bore type | Cylindrical | — | — |
| Number of flanges, outer ring | 2 | — | — |
| Number of flanges, inner ring | 1 | — | — |
| Loose flange | None | — | — |
| Radial internal clearance | CN | — | — |
| Tolerance class | Normal | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Candidate for remanufacturing | Yes | — | — |
| Indicative carbon footprint for new product | 278.0 kg CO 2 e | — | — |
| Indicative carbon footprint for remanufactured product | 92.3 kg CO 2 e | — | — |
| Technical Data | |||
| Bore Diameter (D) | — | 630 mm | — |
| Outside Diamater (D) | — | 780 mm | — |
| Total Width (B) | — | 69 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 1,140,000 N | — |
| Basic Static Load Rating, Radial (C0R) | — | 2,600,000 N | — |
| Overall Width | — | — | 0.000 mm |
| Raceway Diameter Inner Ring (F) | — | 672 mm | — |
| Radial Rating | — | — | 1,240,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Axial Rating | — | — | 0 N |
| Minimum Diameter Shaft Shoulder (Da) | — | 645 mm | — |
| Dynamic Rating C1 | — | — | 1,240,000 N |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Dynamic Rating C90 | — | — | 0 N |
| Limiting Speed (Limiting Spe) | — | 1,460 1/min | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N |
| Maximum Diameter Of Housing Shoulder (Da) | — | 765 mm | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N |
| Maximum Rib Diameter Inner Ring (D1) | — | 684 mm | — |
| Static Radial Rating C0 | — | — | 2,590,000 N |
| Minimum Chamfer Dimension (R1 Min) | — | 4 mm | — |
| Extended Dynamic Rating Ce | — | — | 0 N |
| Axial Displacement (S) | — | 8.4 mm | — |
| Static Axial Rating C0A | — | — | 0 N |
| Minimum Rib Diameter Outer Ring (D1 Min) | — | 730.7 mm | — |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 667 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — |
| Raceway Diameter Outer Ring (E) | — | 744 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 232,000 N | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.