SL045024PP2NR Double Row Full Complement Cylindrical Roller Bearing 120x180x80mm Sealed Locating Bearing

1. Product Overview

SL045024PP2NR is a double row full complement locating bearing, interchangeable with NNF5024ADA-2LSV, dimensions 120×180×80mm.

Code Definition

• SL045024: Heavy full complement roller bearing base model
• PP: Double-sided contact rubber seal against dust and liquid
• 2NR: Dual outer ring snap ring grooves for axial positioning

Triple inner ribs and single outer central ribs form locating structure. Cage-free full rollers offer maximum radial load capacity, supporting heavy radial load and moderate bidirectional axial load. Pre-filled heavy-duty lithium grease with double PP seals. Side relubrication port allows maintenance without disassembly. Widely used for crane pulleys, port lifting rollers and mining conveyors.

2. Technical Specifications

Drawings and durability test reports available on request.

3. Core Advantages

1. Cage-free full roller design for superior radial load capacity
2. Integral rib structure prevents axial shifting under thrust load
3. Double PP lip seal blocks outdoor dust, water and metal debris
4. Dual snap ring grooves simplify axial fixation inside housing
5. Side grease port enables convenient on-site relubrication
6. Compact cross-section saves hub installation space
7. Standard interchangeable dimensions for direct replacement
8. Customizable clearance, high-temp grease, laser marking and export packaging

4. Application Scenarios

• Mobile & tower crane wire rope pulley bearings
• Port gantry crane and reach stacker lifting rollers
• Mining heavy conveyor tension rollers
• Metallurgical steel coil transport auxiliary rollers
• Marine deck lifting winch rotary components
• Low-speed heavy-duty industrial hoist bearings

Suitable for OEM production and aftermarket maintenance of lifting, port and mining machinery.

5. Why Choose GQZ Bearing

We have 25 years of experience manufacturing SL04 series sealed full complement roller bearings including SL045024PP2NR crane pulley models.

Our bearings follow global unified dimensional standards, fully interchangeable with imported equivalents.

Complete OEM & ODM custom service for clearance, grease, surface treatment and marking.

Strict full-process inspection covers raw material test, roller sorting, impact aging and sealing tightness check.

Professional engineers provide load calculation, fit design and lubrication guidance within 24 hours.

Factory direct bulk pricing with stable mass supply for global heavy machinery spare part buyers.

6. Quality Control

• Raw material hardness and composition inspection for GCr15 steel rings and rollers.
• CNC forging, stress relief tempering and raceway superfinishing.
• Roller quenching, polishing and automatic dimensional sorting.
• Precise snap ring groove turning, grease filling and seal pressing.
• Performance tests include heavy impact cycle aging, dust-water durability and anti-sliding stability test.
• Final dimensional inspection before anti-rust treatment and export carton packaging.

Each batch undergoes heavy load simulation test to guarantee stable sealed heavy-load performance.

7. Get A Quote

Send your demand for SL045024PP2NR bearings used in crane pulleys, port equipment and mining conveyors.

Services after inquiry:

1. Official quotation within 24 working hours
2. Technical support for load matching, installation and lubrication
3. Custom upgrades: C3 clearance, anti-rust passivation, high-temp grease
4. Competitive bulk factory price for large orders

Please state order quantity and working conditions to get complete quotation documents.

8. FAQ