ZIBOO
ZIBOO NTN NA4918R Needle Roller Bearing 90x125x105mm Red
Needle roller bearing sized 90x125x105mm for precise rotational support
- TypeTest Equipment
- Color/FinishRed
- Item Count1 pack
- Selling UnitBox
- Parts3 Years
- Labor1 Year
- Needle roller design handles high radial loads in tight spaces
- 90 mm bore fits standard 90 mm shafts
- 125 mm outer diameter matches common housing bores
- 105 mm width provides extended contact surface
- Red finish allows quick visual identification in tool kits
NTN NA4918R Needle Roller Bearing
The ZIBOO NTN NA4918R is a needle roller bearing supplied new for industrial and automotive maintenance. It suits mechanics and engineers who need a replacement rolling element with the exact dimensions 90x125x105mm.
Critical 90x125x105mm dimensional match
The single specification that decides fit is the 90x125x105mm envelope; the bearing must match the shaft diameter, housing bore and width specified by the original equipment drawing. Verify all three figures before ordering because an incorrect width or diameter will prevent assembly.
Straightforward press-fit installation
Installation is a standard press fit onto the shaft and into the housing using appropriate tooling; apply force only to the ring being fitted to avoid brinelling the rollers. The most common error is pressing through the cage or using a hammer directly on the bearing faces, which damages the rolling elements.
Highlights
- Needle roller design handles high radial loads in tight spaces
- 90 mm bore fits standard 90 mm shafts
- 125 mm outer diameter matches common housing bores
- 105 mm width provides extended contact surface
- Red finish allows quick visual identification in tool kits
Specifications
| Brand | ZIBOO |
|---|---|
| Model | NTN NA4918R |
| Type | Test Equipment |
| Color/Finish | Red |
| Item Count | 1 pack |
| Selling Unit | Box |
| Parts | 3 Years |
| Labor | 1 Year |
Questions about this item
What does the 90x125x105mm size mean for installation?
The bearing has a 90 mm inner diameter, 125 mm outer diameter and 105 mm width, so the shaft and housing must match those dimensions exactly.
Which standard defines the NA4918R dimensions and tolerances?
The NA4918R follows the ISO needle roller bearing series, which fixes the boundary dimensions and running accuracy for interchangeable mounting.
What shaft and housing fits are required for the 90 mm bore?
A 90 mm shaft with an appropriate interference fit and a 125 mm housing bore with the matching clearance fit are needed to locate the bearing correctly.
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