SL04-5012NR Double Row Full Complement Cylindrical Roller Bearing With Snap Ring Groove

1. Product Overview

SL04-5012NR is double row full complement cylindrical roller bearing with outer ring snap ring groove. The complete model consists of inner ring, outer ring without ribs, two rows of full cylindrical rollers and matching retaining snap ring. Dimensions: 60mm inner bore × 95mm outer diameter × 44mm width.
Suffix explanation:

- SL04 series: Double row full roller structure, no cage design, maximum roller filling quantity for ultra high radial load capacity; outer ring two sides open, allowing axial displacement of inner ring relative to outer ring, used as floating end bearing to absorb shaft thermal expansion.
- NR: Outer ring processed with standard snap ring groove, equipped with matching circlip for simple axial limiting installation on the housing, reducing extra shoulder machining of equipment housing.
Full complement roller design eliminates cage clearance limitation, achieves extremely high static and dynamic radial load bearing capacity, can only bear radial load without bearing axial force. All rolling parts adopt fully quenched GCr15 bearing steel. Widely used for heavy-duty gearboxes, lifting machinery, hydraulic cylinders, large conveyors, metallurgical auxiliary equipment and heavy industrial equipment that require floating support and simple axial positioning.

2. Technical Specifications

Mounting dimension drawings, snap ring installation operation guides and load performance test reports can be provided upon customer request.

3. Core Advantages

• Double row full complement roller design, more rollers installed inside the bearing, far stronger radial load capacity than caged cylindrical roller bearings, excellent heavy load and impact resistance.
• SL04 floating end structure, rib-free outer ring allows free axial sliding of inner ring, effectively compensates thermal expansion of long shaft and avoids bearing locking failure.
• NR outer ring snap ring groove with supporting circlip, realizes quick axial fixing of outer ring in the housing, simplifies housing processing flow and lowers customer production cost.
• Super precision grinding on inner and outer ring raceways and cylindrical roller surfaces, low friction coefficient, stable low-temperature operation under long-term heavy load circulation.
• High hardness fully quenched GCr15 steel, stable metallographic structure, outstanding contact fatigue and wear resistance, greatly extend service life under continuous heavy load working conditions.
• Separable inner ring and roller assembly, convenient for on-site disassembly, inspection and maintenance without removing the whole equipment housing.
• Standard metric interchangeable dimensions, fully matched with global SL04-5012NR bearings, direct replacement without modifying existing equipment installation structure.
• Rich customized options: P0/P6 precision grade, C3/C4 large clearance group, anti-corrosion surface coating, OEM laser marking on outer ring, neutral export rust-proof carton packaging, high temperature resistant special grease filling.

4. Application Scenarios

SL04-5012NR double row full roller cylindrical bearing with snap ring groove is heavy-duty floating rotary spare part for 60mm shaft equipment requiring ultra large radial load and simple outer ring axial limit:

• Heavy industrial gearbox intermediate shaft and output shaft floating support units
• Lifting winch, lifting platform heavy load rotating bearing positions
• Hydraulic machinery cylinder transmission, heavy-duty roller conveyor support assemblies
• Metallurgical auxiliary conveying equipment, mining auxiliary transmission rotating parts
• Other heavy machinery that needs floating compensation for shaft expansion and pure radial load support
  Aftermarket interchangeable SL04 series full complement cylindrical roller bearing
  Ultra heavy radial load floating bearing solution for gearbox manufacturers, lifting equipment OEM factories and heavy industry equipment bulk maintenance procurement.

5. Why Choose GQZ Bearing

• We have 25 years of mature manufacturing experience for SL04 series full complement cylindrical roller bearings including SL04-5012NR.
• Our SL04-5012NR products adopt international unified standard dimensions, consistent dynamic and static load parameters, snap ring groove size and dimensional tolerance standards, fully interchangeable with global standard bearings.
• Complete OEM & ODM custom service, supporting multi-precision grades, multiple clearance groups, surface anti-rust treatment and special temperature-resistant grease filling demands.
• Strict pre-delivery quality control system: GCr15 raw material composition and hardness inspection, roller automatic sorting screening, long-cycle heavy load rotation aging test, snap ring groove dimensional full inspection.
• Professional cylindrical roller bearing technical team provides one-to-one radial load matching calculation, shaft housing fit tolerance guidance and circlip installation tips within 24 working hours.
• Large standardized heavy bearing production workshop offers competitive factory direct bulk wholesale price, stable long-term supply for global gearbox, lifting and heavy machinery spare parts purchasers.
• We focus on full complement floating cylindrical roller bearings with NR snap ring groove, precise raceway grinding quality control, ISO metric standard dimensions, and strive for long-term win-win cooperation with heavy industrial transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, internal crack defect and hardness inspection for GCr15 inner ring, outer ring and cylindrical roller blanks
• Precision turning processing, multiple stress relief tempering, ultra-precision superfinishing grinding for inner and outer ring raceway surfaces and NR snap ring groove
• Cylindrical roller high temperature quenching, mirror polishing and high precision automatic sorting production line
• Inner ring roller assembly matching inspection, circlip size detection, pre-filled anti-wear grease treatment process
• Targeted performance testing: SL04-5012NR long cycle heavy radial load rotation aging test, floating axial displacement simulation test, anti-fatigue wear detection
• Full re-inspection of overall dimensional tolerance, raceway surface finish and snap ring groove precision before anti-rust oil coating and export moisture-proof carton packaging.
• Each batch of SL04-5012NR bearings undergoes heavy gearbox simulation cycle rotation test to ensure stable ultra-heavy load floating support performance for 60mm shaft heavy-duty transmission systems.

7. Get A Quote Now

If you need SL04-5012NR 60x95x44 double row full complement cylindrical roller bearings with NR snap ring groove for gearbox/lifting equipment manufacturing, transmission assembly and heavy machinery maintenance bulk matching, directly send your purchase inquiry.
Complete professional supporting services after inquiry submission:

• Official formal quotation reply within 24 working hours
• One-to-one radial load matching calculation, shaft housing fit tolerance and circlip installation technical support provided by professional bearing engineers
• Custom bearing performance upgrade options including multi-precision grades and special high-temperature resistant grease
• Favorable factory direct bulk wholesale price for large quantity single model orders of SL04-5012NR

Please provide purchase quantity, working conditions (ultra heavy radial load / continuous operation / vibration) and long-term operating temperature to obtain complete official quotation documents.

8. FAQ