NX10-Z bearing: complete specifications & equivalents
The NX10-Z is a DIN 616 radial bearing sized 10 x 19 x 18 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 10 mm |
| Outer diameter D | 19 mm |
| Width B | 18 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 4.95 kN |
| Basic static load rating C0 | 4.55 kN |
| Fatigue load limit Pu | 0.53 kN |
| Reference speed (thermal) | 8500 rpm |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 25 g |
| Manufacturer designation | NX 10 Z |
| Standard | DIN 616 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 7.8 needle roller / thrust ball, full complement thrust part |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 7.8 needle roller / thrust ball, full complement thrust part) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 7.8 needle roller / thrust ball, full complement thrust part); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & NX-series range
| Bore d | 0.394 in |
|---|---|
| Outer diameter D | 0.748 in |
| Width B | 0.709 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 4.5 mm |
| Smallest bore in NX-series | 7 mm |
| Largest outer diameter in NX-series | 47 mm |
| Width range across NX-series | 18–30 mm |
| Bore position in NX-series (smallest first) | 2 of 9 |
| Bore above smallest NX-series size | 3 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NX10 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 10×19×18 mm envelope and equivalent catalogue ratings; NX10 is the combined needle/thrust ball execution — boundary-dimension interchangeable, execution differences (seals, shields, cage) apply. |
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 NX10-Z model number is decoded
NX 10 Z is a combined needle roller / full complement thrust ball bearing: a caged needle roller set for the 10 mm radial seat stacked with a maximum-ball-count thrust ball set, per SKF catalogue PUB BU/P1 17000 ch. 7.8. Reading the designation: NX marks needle roller + full complement thrust ball, the number the 10 mm shaft seat; 19 mm OD and 18 mm overall height follow the series plan. Full complement thrust parts run slower than caged ones: observe the 5,600 r/min limiting speed, and expect the thrust part to govern the thermal ceiling. Speed ceilings differ by part: 8,500 r/min thermal reference and 5,600 r/min limiting — the thrust element governs, since its washer faces see sliding components of contact. The full complement thrust set has no cage to retain the balls — hold them with grease during assembly and never rotate the shaft before the axial preload (at least factor A 0.00038) is applied.
Typical equipment & failure modes
Common applications
- light rotary tables under axial load
- oscillating pivots with steady axial preload
- small hoisting and winch drums
- actuator output shafts
Known failure patterns
- needle edge loading and raceway denting when the shaft deflects beyond the compensation range
- polymer cage deformation when the local temperature exceeds the 120 °C sustained limit
- abrasive paste formation from dust ingressing past open ends without effective housing seals
- brinelling of raceways from impact or pressing force transmitted through the rolling elements
- thrust-part ball or roller skidding and smearing when the axial load falls below the minimum factor
Selection pitfalls — read before you substitute
- On a 10 mm seat the housing bore quality dominates life: a bore 0.02 mm out of round pinches the 19 mm ring or cup into a lobed shape, and the rollers then trace the housing's geometry error, not the design load.
- Reference and limiting speeds are different limits: the 8,500 r/min reference is the thermal criterion under load, The limiting value is mechanical; the reference value is thermal under load, and grease choice moves it substantially.
- Hardness is load capacity: in families without an inner ring the 10 mm journal must hold 58–64 HRC with a ground finish; a surface that looks fine but sits at 45 HRC will rib the raceway within weeks.
- The thrust part is one-direction: reverse axial events — however brief — lift the rolling elements off the raceway, and the subsequent re-entry impact dents the washer face; mount the NX 10 Z facing the working thrust.
- Minimum axial load is a real requirement: below factor A 0.00038 the thrust elements skid, polish their raceways and lose them — springs or preload washers belong in the arrangement drawing, not the troubleshooting notes.
- The 4.95/4.55 kN ratings and 25 g mass are SKF catalogue values transcribed from ch. 7.8 of PUB BU/P1 17000 (PDF table page 656); combined-type axial ratings appear in the text above because the structured record carries radial values only.
Frequently asked questions
What mounting mistakes ruin a NX 10 Z?
Press on the ring faces only with a fitting sleeve, keep everything square to the 10 mm seat, and never transmit force through the rolling elements. Follow the catalogue's seat tolerances — the narrow needle contact forgives neither tilt nor burrs.
Is the NX 10 Z sealed?
No — this execution is open and depends on the housing sealing arrangement; grease it at assembly and keep the relubrication interval short in dirty duty.
Which dimensions does the NX 10 Z have?
A NX 10 Z measures 10 mm bore/Fw × 19 mm outside diameter × 18 mm width (0.394 × 0.748 × 0.709 in). From SKF catalogue PUB BU/P1 17000: radial dynamic rating C 4.95 kN, static C0 4.55 kN, fatigue limit Pu 0.53 kN, limiting speed 5,600 r/min, reference speed 8,500 r/min, mass about 25 g. Axial ratings of the thrust part: dynamic Ca 5.07 kN (Ca), static C0a 8.5 kN (C0a), minimum load factor A 0.00038; the thrust set carries load in one direction only.
What does NX 10 Z mean in SKF part numbering?
NX = needle roller radial part + full complement thrust ball part for a 10 mm shaft; the catalogue plan completes 19 mm OD and 18 mm overall height. The packed thrust set maximises axial capacity at low speed.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 7.8 needle roller / thrust ball, full complement thrust part on 2026-09-26. Read our editorial & correction policy.