NJ1096 bearing: complete specifications & equivalents
The NJ1096 is a ISO 15 radial bearing sized 480 x 700 x 100 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 480 mm |
| Outer diameter D | 700 mm |
| Width B | 100 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 1750 kN |
| Basic static load rating C0 | 2750 kN |
| Fatigue load limit Pu | 197 kN |
| Limiting speed (mechanical) | 810 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 124000 g |
| Manufacturer designation | NTN NJ1096 |
| 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 | 18.898 in |
|---|---|
| Outer diameter D | 27.559 in |
| Width B | 3.937 in |
| ISO bore code | 96 |
| Radial section height (D−d)/2 | 110 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) | 41 of 42 |
| Bore above smallest NJ1000-series size | 455 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NJ1096 | 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 NJ1096 model number is decoded
NTN lists NJ1096 on the 480×700 mm envelope, 100 mm wide: a line-contact radial bearing with a pressed sheet-steel cage and a grease limiting speed of 810 r/min. The leading NJ defines the rib arrangement (inner ring two ribs + one outer rib); the dimension-series digits and the two-digit bore code resolve to 480 mm, with 700 mm OD and 100 mm width from the ISO 15 general plan. The 100 mm width and 110.0 mm section put the NJ1000 series in the extra-light (10/49) section; wide 22/23 variants at the same bore change OD, width and heat generation and are not drop-in swaps. Speed ratio check: limiting 810 r/min is .84 of the 960 r/min oil value for NJ1096; grease-churn heating closes that gap as fill quantity rises. Keep the open bearing wrapped until fitting: the line-contact raceways of the 480 mm bore indent under a single hard particle, and the steel cage provides no sealing of its own.
Typical equipment & failure modes
Common applications
- wind-turbine gearbox planet and rotor shafts
- ship propulsion line shafts and reduction gears
- mining SAG/ball-mill drive shafts
- offshore drawworks and winch drums
Known failure patterns
- roller smearing (microwelding) at start-up before the oil film builds under insufficient radial load
- cage wear accelerated when the EA high-capacity roller complement runs continuously above its thermal balance
- grease starvation and cage drag when relubrication intervals are extended past the grease life
- brinelling from static overload or impact during handling
- brinelling from static overload or impact during handling
Selection pitfalls — read before you substitute
- At 480 mm bore, oil-lubricated arrangements toward 960 r/min need positive flow and drain design; the 124000 g NJ1096 ring stores enough heat that grease-only duty needs a careful relubrication calculation.
- Minimum radial load is frequently missed in oversized motor and fan selections: an underloaded NJ1096 skids at 810 r/min and fails by smearing long before L10 fatigue.
- Grease limiting speed 810 r/min and oil 960 r/min are different limits for NJ1096: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
- The 100 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 480 mm inner ring.
- Open NJ1096 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 480 mm contact.
- The 1750/2750 kN ratings, 197 kN Pu and 124000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NJ1096 (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 NJ1096?
NJ1096 is an NTN NJ single-row cylindrical roller bearing to ISO 15: 480 mm bore, 700 mm OD and 100 mm width (18.898 × 27.559 × 3.937 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 1750 kN, C0 2750 kN, Pu 197 kN, grease limiting speed 810 r/min, oil 960 r/min, mass about 124000 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. NJ1096 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. NJ1096 is supplied in the standard open execution shown in the table.
Can NJ1096 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 NJ1096?
Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 536 mm, Ew 644 mm. The nominal bore/OD remain 480/700 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 810 r/min grease / 960 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.