LRT9010563 Needle Roller Inner Ring 90x105x63mm For RNA6918 Needle Bearing

1. Product Overview

LRT9010563 is precision‑hardened and ground needle roller bearing inner ring, interchangeable with IR90×105×63. Dimensions:90 mm inner bore × 105 mm outer race diameter × 63 mm width. This inner ring is designed to cooperate with machined needle roller bearing RNA6918. It is applied when the shaft surface cannot reach required hardness and surface finish for direct needle‑roller running track. High‑precision super‑ground outer raceway provides perfect rolling contact surface for needle rollers. Separable component, easy for assembly, inspection and replacement. Made of fully quenched GCr15 bearing steel. Widely used for industrial gearboxes, heavy‑duty conveyors, hydraulic equipment, printing machinery and general industrial transmission equipment requiring compact‑section heavy radial load capacity.

2. Technical Specifications

3. Core Advantages

• Replaceable raceway solution: Ideal for shafts that cannot be heat‑treated or precision‑ground; provides hardened high‑precision running surface for needle rollers without modifying main shaft.
• Ultra‑precision super‑ground outer raceway, low surface roughness, reduce needle roller friction, wear and heat generation for stable heavy‑load operation.
• High‑hardness fully quenched GCr15 bearing steel, excellent contact‑fatigue resistance and wear‑resistance for long‑term cyclic heavy radial load.
• Strictly controlled chamfer and shoulder dimensions, convenient shaft mounting and positioning, avoid interference during assembly.
• Perfect dimensional compatibility with RNA6918 machined needle roller bearing, simple matching assembly.
• Compact cross‑section design, save installation space for limited‑envelope transmission structures.
• Standard metric interchangeable dimension, fully interchangeable with global LRT9010563 / IR90×105×63 inner rings, direct replacement.
• Rich custom options: P0/P6 precision grade, special anti‑corrosion coating, OEM laser marking, neutral export anti‑rust carton packaging.

4. Application Scenarios

LRT9010563 precision hardened needle roller inner ring is separable high‑precision raceway spare‑part for 90 mm shaft matched with RNA6918 needle roller bearing:

• Industrial heavy‑duty gearbox intermediate shaft assemblies
• Logistics heavy conveyor compact rotary supporting positions
• Hydraulic machinery, oil‑pump transmission rotating components
• Large printing‑press transmission mechanism units
• Other compact‑structure industrial machinery requiring heavy radial load, where shaft cannot achieve required hardness

Aftermarket interchangeable LRT‑series needle roller bearing inner ring

Compact heavy‑load needle‑roller raceway solution for gearbox manufacturers, hydraulic‑equipment OEMs and industrial‑equipment bulk‑maintenance procurement.

5. Why Choose GQZ Bearing

• 25‑years manufacturing experience of precision needle‑roller inner rings including LRT9010563.
• LRT9010563 inner ring is dimension‑for‑dimension interchangeable with international‑standard counterparts, consistent race‑way precision, hardness and dimensional tolerance standards.
• Complete OEM & ODM custom service covering multi‑precision‑grade, surface anti‑corrosion treatment and special marking requirements.
• Strict pre‑shipment QC: GCr15 raw‑material metallurgy & hardness inspection, outer‑raceway super‑finish grinding inspection, dimension & chamfer full checking, simulation matching test with RNA6918.
• Professional needle‑roller‑component engineering team provides one‑on‑one shaft‑fit tolerance guidance and assembly tips within 24 working hours.
• Standardized precision‑production workshop offers competitive factory‑direct bulk‑wholesale price, stable long‑term supply for global gearbox, hydraulic and general‑machinery spare‑part buyers.
• We focus on precision ground needle‑roller inner rings, strict race‑way surface‑quality control, ISO‑metric dimension standards, pursuing win‑win long‑term cooperation with compact heavy‑load industrial‑transmission‑equipment suppliers.

6. Quality Control

• Raw‑material chemical‑composition, internal‑defect and hardness inspection for GCr15 inner ring blanks
• Precision turning, multiple stress‑relief tempering, ultra‑precision super‑finish grinding for outer needle‑roller race‑way surface
• Chamfer processing, shoulder dimension strict inspection, surface‑roughness testing
• Targeted performance‑tests: LRT9010563 cyclic contact‑fatigue simulation test, matching compatibility check with RNA6918 needle roller bearing
• Full re‑check for bore, outer‑diameter, width, chamfer and race‑way surface‑finish before anti‑rust‑oil coating and export moisture‑proof‑carton packing.

Each production batch of LRT9010563 undergoes needle‑roller contact simulation test to guarantee stable high‑wear‑resistance race‑way performance for compact heavy‑load transmission systems.

7. Get A Quote Now

If you need LRT9010563 90x105x63 precision needle‑roller inner rings matched for RNA6918, for gearbox/hydraulic‑equipment manufacturing, transmission‑assembly and industrial‑equipment‑maintenance bulk‑matching, send your purchase‑inquiry directly.

Full professional supporting‑services after inquiry submission:

• Official formal quotation reply within 24 working‑hours
• One‑on‑one shaft‑fit‑tolerance guidance and needle‑roller matching assembly technical‑support from professional‑bearing‑工程师
• Custom‑component‑performance‑upgrade options including multi‑precision‑grade and anti‑corrosion surface treatment
• Favorable factory‑direct bulk‑wholesale price for large‑volume LRT9010563 single‑model‑orders

Please provide purchase‑quantity, working‑conditions (heavy radial load / vibration / operating temperature) to get detailed official‑quotation‑documents.

8. FAQ