NU1096 bearing: complete specifications & equivalents
The NU1096 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 NU1096 |
| 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 & NU1000-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 NU1000-series | 25 mm |
| Largest outer diameter in NU1000-series | 1090 mm |
| Width range across NU1000-series | 12–150 mm |
| Bore position in NU1000-series (smallest first) | 41 of 47 |
| Bore above smallest NU1000-series size | 455 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NU1096-MA | SKF | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
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 NU1096 model number is decoded
The NTN order number NU1096 denotes a 480×700×100 mm (18.898 × 27.559 × 3.937 in) cylindrical roller bearing in the NU1000 family, a pressed sheet-steel cage. Digit by digit, NU1096 reads as NU (outer ring ribbed, inner ring ribless), ISO 15 series, and bore 480 mm; trailing letters such as EA or E mark the cage/capacity execution and are part of the order number. The 110.0 mm radial section ((700−480)/2) frames the roller complement; capacity per millimetre of bore is about 3.6 kN/mm before application factors. The 480 mm (18.898 in) bore and 700 mm (27.559 in) OD are ISO 15 boundary values; fillet and shoulder dimensions must still come from the NTN mounting table for the 100 mm-wide ring. On NU arrangements confirm which ring is separable before heating: forcing the ribbed ring off over the roller complement damages the cage and rib faces.
Typical equipment & failure modes
Common applications
- offshore drawworks and winch drums
- heavy press and large gearbox main shafts
- rolling-mill work-roll and backup-roll positions
- large turbine and generator rotor bearings
Known failure patterns
- inner-ring raceway spalling from overload in the line-contact Hertzian zone
- 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
- electrical pitting on VFD-driven motor shafts without grounding protection
- 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 NU1096 ring stores enough heat that grease-only duty needs a careful relubrication calculation.
- Wide (22/23) and light (10/49) executions at 480 mm bore share bore but not OD/width; check the full NU1000 series code before substituting, because housing and shoulder geometry will not interchange.
- The NU rib arrangement is not interchangeable with another prefix on the same 480 mm seat: outer ring ribbed, inner ring ribless. Swapping NU for NJ changes axial location behaviour even though the 700×100 mm envelope matches.
- 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.
- The 110.0 mm section at 480 mm bore leaves a narrow oil path; with the standard cage the relubrication groove and oil-level design must keep grease from churning in the 100 mm-wide cavity.
- The 1750/2750 kN ratings, 197 kN Pu and 124000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NU1096 (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 NU1096?
NU1096 is an NTN NU 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. NU1096 is two integral ribs on the outer ring and a ribless, separable inner ring — a non-locating bearing that lets the shaft float axially.
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. NU1096 is supplied in the standard open execution shown in the table.
Can NU1096 take axial load and locate a shaft?
the NU design carries no axial load and floats axially on both sides. Provide axial location with an adjacent locating bearing (angular-contact, deep-groove or a paired NJ/NUP set).
What do Fw and Ew mean for NU1096?
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.