NJ1007 bearing: complete specifications & equivalents
The NJ1007 is a ISO 15 radial bearing sized 35 x 62 x 14 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 35 mm |
| Outer diameter D | 62 mm |
| Width B | 14 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 25.1 kN |
| Basic static load rating C0 | 23.2 kN |
| Fatigue load limit Pu | 2.82 kN |
| Limiting speed (mechanical) | 12000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 176 g |
| Manufacturer designation | NTN NJ1007 |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & NJ1000-series range
| Bore d | 1.378 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 0.551 in |
| ISO bore code | 07 |
| Radial section height (D−d)/2 | 13.5 mm |
| Smallest bore in NJ1000-series | 25 mm |
| Largest outer diameter in NJ1000-series | 720 mm |
| Width range across NJ1000-series | 12–100 mm |
| Bore position in NJ1000-series (smallest first) | 3 of 42 |
| Bore above smallest NJ1000-series size | 10 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NJ1007 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the NJ1007 model number is decoded
For pure radial duty on a 35 mm shaft NTN supplies NJ1007: two integral ribs on the inner ring and one rib on the outer ring; the open execution is rated 12,000 r/min on grease and 15,000 r/min on oil. Numbering ties NJ1007 to its envelope: type code NJ, series NJ1000, 35 mm bore; the 62×14 mm outline therefore swaps dimensionally with other ISO 15 bearings of the same code, though rib arrangements differ by prefix. the bare number is the standard-capacity open execution with the normal pressed-steel cage; quote the full NJ1007 designation when purchasing. The 0.7 kN-per-mm-bore figure (25.1 kN over 35 mm) lets a NJ1007 interchange candidate be screened quickly against the same-envelope ball or roller alternatives. Mount the separable inner ring + roller assembly on the shaft first and slide the outer ring into the housing; never press the outer ring through the rollers of NJ1007.
Typical equipment & failure modes
Common applications
- pump and compressor crankshafts and rotors
- machine-tool gearbox and spindle radial sets
- material-handling drum and wheel shafts
- papermaking and printing auxiliary drives
Known failure patterns
- roller smearing (microwelding) at start-up before the oil film builds under insufficient radial load
- pressed-steel cage pocket wear when rollers skid at light load or too-thin lubricant
- roller-end and raceway scoring from inadequate oil flow under heavy radial load
- edge loading from shaft deflection beyond the 3–4 arc-minute alignment limit
- false brinelling on standby machines exposed to external vibration
Selection pitfalls — read before you substitute
- On this 35 mm bore, shaft thermal growth can preload the inner ring if the fit is too tight; verify residual interference at temperature and confirm the float ring still slides after mounting NJ1007.
- Open NJ1007 units need application-supplied sealing and a defined lubricant schedule; film thickness is the first failure mode for line contact when viscosity drops at the 35 mm contact.
- The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 25.1/23.2 kN pair here belongs to NJ1007 as printed, not to the bare size.
- Grease limiting speed 12,000 r/min and oil 15,000 r/min are different limits for NJ1007: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
- The 14 mm width and abutment faces must be square to the axis; a tilted spacer concentrates load across the roller set and shows as uneven raceway polish on the 35 mm inner ring.
- The 25.1/23.2 kN ratings, 2.82 kN Pu and 176 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NJ1007 (standard execution); other makes sharing the ISO 15 envelope revise internal geometry without changing the order number, so keep the 2203E reference with the specification for critical drives.
Frequently asked questions
What are the dimensions and catalogue data of NJ1007?
NJ1007 is an NTN NJ single-row cylindrical roller bearing to ISO 15: 35 mm bore, 62 mm OD and 14 mm width (1.378 × 2.441 × 0.551 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 25.1 kN, C0 23.2 kN, Pu 2.82 kN, grease limiting speed 12,000 r/min, oil 15,000 r/min, mass about 176 g. It is open, with a pressed sheet-steel cage.
What is the difference between NU, NJ, NUP, N and NF cylindrical roller bearings?
The prefix states the rib arrangement: NU has two outer-ring ribs and a ribless inner ring (float, no axial load); NJ adds ribs for one-direction location; NUP adds a loose L-ring to locate both directions; N has two inner-ring ribs and a separable outer ring; NF has one rib per ring for one-direction guidance. NJ1007 is two integral ribs on the inner ring and one rib on the outer ring — it locates the shaft in one axial direction.
What do the EA, E and ＊ suffixes mean on NTN cylindrical roller bearings?
EA is NTN's high-capacity design with a pressed sheet-steel cage and optimised roller complement in the same ISO 15 envelope; E marks the high-capacity design at the larger bores; the ＊ symbol printed before the code in the NTN catalogue marks the ULTAGE new-generation specification and is not typed as part of the order number. NJ1007 is supplied in the standard open execution shown in the table.
Can NJ1007 take axial load and locate a shaft?
the NJ design accepts axial load in one direction and provides one-way shaft location. For two-direction location use an NUP execution or an NJ pair with loose rib rings.
What do Fw and Ew mean for NJ1007?
Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 42 mm, Ew 55 mm. The nominal bore/OD remain 35/62 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 12,000 r/min grease / 15,000 r/min oil.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.