SL045036PP2NR Double Row Full Complement Cylindrical Roller Bearing 180x280x136mm Sealed Locating Bearing

1. Product Overview

SL045036PP2NR double row full complement locating bearing, interchangeable with NNF5036ADA-2LSV, dimension 180×280×136mm.

Code Definition

• SL045036: Extra heavy full complement roller base model
• PP: Double-sided contact rubber seal against dust, mud and water splash
• 2NR: Dual outer ring snap ring grooves for axial housing locking

Triple inner ribs + single outer central rib form integrated locating structure. Cage-free full roller layout maximizes radial load capacity, supports extreme heavy radial load plus moderate bidirectional axial thrust. Pre-filled heavy-duty lithium grease; side relubrication port enables maintenance without disassembly. Designed for low-speed ultra-heavy-load rotary units including large crane pulleys, heavy port lifting rollers and mining large conveyors.

2. Technical Specifications

Drawings and heavy-load durability test reports available on request.

3. Core Advantages

1. Cage-free full roller design delivers maximum radial load capacity
2. Integrated rib structure eliminates axial shifting under extreme thrust
3. Double PP lip seal blocks outdoor dust, rainwater and metal abrasive debris
4. Dual snap ring grooves simplify axial fixation without extra housing shoulders
5. Side grease port supports convenient on-site relubrication without disassembly
6. Optimized compact cross-section saves large hub installation space
7. Global unified interchangeable dimensions for direct one-to-one replacement
8. Customizable clearance, high-temperature grease, outer ring laser marking and neutral export packaging

4. Application Scenarios

• Extra large mobile & tower crane wire rope pulley bearing assemblies
• Port container gantry crane, heavy reach stacker lifting roller sets
• Mining heavy-duty wide belt conveyor tension support rollers
• Metallurgical large steel coil transport heavy auxiliary rollers
• Marine deck heavy lifting winch rotary positioning components
• Low-speed ultra-heavy-load industrial large hoist main support bearings

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

5. Why Choose GQZ Bearing

• 25 years specialized production of SL04 series sealed full complement roller bearings including SL045036PP2NR large crane pulley heavy load models.
• Global unified dimensional standards, fully interchangeable with mainstream imported equivalent bearings.
• Complete OEM & ODM custom service for clearance adjustment, high-temperature grease, anti-corrosion surface treatment and outer ring identification marking.
• Strict full-process inspection: raw material hardness test, roller dimensional sorting, long-cycle heavy impact rotation aging and sealing lip tightness batch inspection.
• Professional heavy load bearing engineers provide load calculation, interference fit design and outdoor long-life lubrication guidance within 24 working hours.
• Factory direct bulk wholesale pricing, stable continuous mass supply for global heavy lifting and mining machinery spare part buyers.

6. Quality Control

• Raw material composition and hardness inspection for GCr15 inner ring, outer ring and cylindrical roller blanks.
• CNC precision forging, multi-cycle stress relief tempering and ultra-precision raceway mirror superfinishing.
• Roller high-temperature integral quenching, mirror polishing and automatic dimensional grouping sorting.
• Precise dual snap ring groove turning, quantitative heavy-duty extreme pressure grease filling and PP rubber seal press-fitting curing procedure.
• Performance verification tests: large crane pulley heavy impact cycle aging, mixed dust-water outdoor anti-contamination durability, bidirectional axial anti-sliding stability test.
• Final full dimension, bore roundness and outer ring flatness reinspection before anti-rust oil coating and moisture-proof neutral export carton packaging.
• Each finished production batch undergoes continuous ultra-heavy load cycle simulation test to guarantee stable sealed heavy-load operation performance.

7. Get A Quote

Submit purchasing demand for SL045036PP2NR bearings applied to large crane pulleys, heavy port lifting equipment and mining wide heavy conveyors.

Full one-stop professional services after inquiry submission:

1. Official detailed standardized quotation document delivered within 24 working hours
2. Technical support for heavy load matching, shaft press-fit installation and long-term anti-wear lubrication
3. Custom bearing performance upgrades: C3 enlarged clearance, stainless steel anti-rust passivation, high-temperature synthetic grease
4. Competitive factory direct bulk unit price for large-volume single model orders

Please state order quantity and actual operational working conditions (outdoor dust-water splash environment, continuous low-speed heavy impact cyclic operation) to receive complete formal quotation documents.

8. FAQ