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Hyundai excavator slew bearing

Compatible with Komatsu PC30–PC2000 excavators

OEM-fit dimensions for direct replacement

Premium 50Mn / 42CrMo forged steel construction

Hardened raceways (HRC55–62) for longer service life

High load capacity and excellent wear resistance

Available from stock with custom manufacturing support
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  • Product Description

Hyundai Excavator Slew Bearing – Direct Replacement Solution from Luoyang Heng Guan Bearing

We supply direct-fit Slewing Bearings designed specifically for Hyundai excavators at Luoyang Heng Guan Bearing Technology. Our Hyundai excavator slew bearing products cover the full model range from 6-ton mini excavators to 90-ton heavy-duty machines. Whether you're operating a Hyundai R60 on urban construction sites or running an R450 in mining operations, our bearings deliver the load capacity, rotational precision, and durability your equipment demands. Each bearing is manufactured to exact dimensional tolerances that match OEM mounting specifications, ensuring straightforward installation without modification.

Need urgent delivery or custom specs? Contact our engineering team: mia@hgb-bearing.com

What Makes a Slewing Bearing Critical in Hyundai Excavators?

The slewing bearing interfaces the excavator’s upper structure to the undercarriage, supporting axial loads, radial forces, and tilting moments amid operation.

For Hyundai excavators, it guarantees smooth 360° revolution and exact development under load. A solid bearing keeps up efficiency, whereas intemperate wear can lead to downtime and harm to encompassing components.

Hyundai excavator slew bearing factory
Hyundai excavator slew bearing installation
Hyundai excavator slew bearing Customer Reviews

Technical Specifications

Parameter
Specification Range
Outer Diameter
400mm – 2800mm
Bore Diameter
280mm – 2400mm
Height
65mm – 280mm
Raceway Hardness
HRC 55-62
Gear Module (if applicable)
M4 – M16
Precision Grade
P0 / P6 / P5 / P4
Material
50Mn / 42CrMo alloy steel
Structure Types
Single-row ball / Cross-roller / Three-row roller
Load Capacity
Varies by model (consult for specific ratings)
Operating Temperature Range
-30°C to +80°C

HYUNDAI Model Product Parameters

Model
Part Number
Outer Diameter
Inside Diameter
Total height
Outer Height
Inner Height
Outer Hole Parameters
Inner Hole Parameters
Number of Teeth
R140LC-7
81N4-01020
1196
963
90
79
80
36-φ19
36-M16*1.5
98
R210LC-3
81EM-00020
1202
945
84
75
70
36
36
80
R170W-7
81EM-00021
1202
947
83
75
70
36-φ22
36-M20*1.5
80
R180W-9S
81EM-00021GG
1202
947
83
75
70
36-φ22
36-M20*1.5
80
R200W-7
81EM-00021GG
1327
1083
110
89
94
30-φ22
36-M20
92
R210-7
81N6-00023BG
1327
1084
110
89
94
30-φ22
36-M20
92
R210LC-7
81N6-01020
1326
1084
110
89
94
30-φ22
36-M20
92
R210-7
81N6-00022
1326
1084
110
89
94
30-φ22
36-M20
92
R210-7
81N6-00021
1326
1084
110
89
94
30-φ22
36-M20
92
R210LC7
31N 812020
1326
1084
110
89
94
30-Φ22
36-M20
92
R210W-9S
81Q5-01020
1327
1083
110
89
94
30-φ22
36-M20
92
R210W-9S
81Q5-01021
1327
1083
110
89
94
30-φ22
36-M20
92
R220LC-9S
81Q6-00020
1326
1084
110
89
94
30-φ22
36-M20
92
R220LC-9S
81Q6-01020
1326
1084
110
89
94
30-φ22
36-M20
92
R220LC-9S
81Q6-01021
1326
1084
110
89
94
30-φ22
36-M20
92
R220LC-9S
81Q6-00021
1326
1084
110
89
94
30-φ22
36-M20
92
R250LC-7
81EN-00052
1410
1131
120
88
110
34-φ23
36-M20
82
290LC-7
81N8-0003
1526
1235
123
97
110
38-φ26
40-M24
90
R290
81N8-00021
1526
1235
122
87
110
37-Ф26
40-M24
90
R290
81N8-00022
1526
1235
122
87
110
37-Ф26
40-M24
90
R290LC 7A
4921797
1526
1235
123
97
110
38-φ26
40-M24
90
R290LC-7
81N8-00023
1526
1235
123
97
110
38-φ26
40-M24
90
R290LC-7A
81N8-00024GG
1526
1235
122
97
110
38-φ26
40-M24
90
R320-7
81N9-01020
1526
1235
122
97
110
38-Ф26
40-M24
90
R320LC-7
81N9-01021
1526
1235
122
97
110
38-Ф26
40-M24
90
R320LC-7
81N9-01022
1526
1235
122
97
110
38-Ф26
40-M24
90
R320LC-7
81n9-01022 BG
1526
1235
122
97
110
38-Ф26
40-M24
90
R320LC-7
81N9-00021
1526
1235
122
97
110
38
40
90
R360LC-7
81NA-01020
1550
1250
 
108
140
35
40
106
R360LC-7
81NA-01022GG
1550
1250
152
108
140
35
40
106
R360LC-7A
81NA-01021BG
1550
1250
152
108
140
35
40
106

Available Structural Configurations

Single-Row Four-Point Contact Ball Design

This plan employs exactness balls with four-point raceway contact, giving smooth, low-friction rotation and precise positioning.

Benefits: Lower vibration, decreased control utilization, and longer seal life. Perfect for common excavation and light pulverization applications.

Single-Row Cross-Roller and Three-Row Roller Design

Cross-roller bearings use alternating cylindrical rollers to maximize contact area, while three-row designs improve load distribution.

Benefits: Higher load capacity, greater rigidity, and better shock resistance. Ideal for mining, quarrying, demolition, and other heavy-duty Hyundai excavator applications.

Our Partners

Manufacturing Standards at Heng Guan Bearing

Material Selection and Heat Treatment

We manufacture inner and outer rings from 50Mn or 42CrMo alloy steel. Forging refines the grain structure, while induction hardening produces HRC55–62 raceway hardness for excellent wear and fatigue resistance.

The hardened structure also maintains dimensional stability under thermal cycling and operating friction.

Precision Machining and Quality Control

Our CNC machining centers ensure accurate fit with Hyundai mounting interfaces. Dimensions are verified by coordinate measuring machines, and rotational torque is tested before shipment.

Production equipment includes CNC heat-treatment, gear hobbing, and precision grinding systems for high-quality raceway finishing.

Why Choose Heng Guan Bearing for Your Hyundai Fleet

Complete model coverage:We maintain dimensional data for Hyundai excavators from compact R35 and R55 models through mid-size R210 and R300 machines to large R520 and R800 units. If you need a Hyundai excavator slew bearing replacement, we likely have the specification on file.

Custom engineering: We customize gear teeth, seals, load ratings, and mounting configurations to meet specific needs.

Flexible ordering: Stock sizes ship quickly, and custom bearings are available with reasonable lead times for both single-unit and bulk orders.

Standards compliance: ISO9001-certified, DIN/ISO-compliant, and RoHS-compliant. Our bearings are supplied to customers in over 50 countries.

Hyundai excavator slew bearing Certification

Frequently Asked Questions

Q: How do I recognize the correct bearing for my Hyundai excavator?

Check the demonstrate plate on your machine for the correct details number (case: R220LC-9). You can moreover degree the external breadth, jolt gap circle distance across, and number of mounting gaps on your existing bearing. Send these subtle elements to us, and we'll affirm the adjust substitution specification.

Q: What's the commonplace benefit life of your slewing bearings?

Service life depends on working conditions, upkeep hones, and stack concentrated. Beneath ordinary development use with legitimate grease, anticipate 8,000-12,000 working hours. Heavy-duty applications like devastation or mining may require substitution at 5,000-8,000 hours.

Q: Do you supply Bearing with inner or outside gears?

We fabricate both arrangements. Most Hyundai excavators use outside Gear courses of action where the slew drive pinion networks with teeth cut on the bearing's external ring. Affirm your machine's setup some time recently requesting.

Q: Can you reverse-engineer a bearing from my old unit?

Yes. Ship us your worn bearing, and our engineering team will measure all critical dimensions, tooth profiles, and hole patterns. We'll produce detailed drawings for your approval before manufacturing the replacement. This service helps when documentation for older machines isn't available.

Q: What's your typical delivery time?

Stock items ship within 3-5 business days. Custom bearings require 25-35 days depending on size and complexity. Rush orders may be accommodated—Contact Us to discuss your timeline.

Q: What testing do you perform before shipment?

Every product undergoes dimensional verification, raceway hardness testing, rotational torque measurement, and gear tooth profile inspection. We provide test reports with each order documenting these results.

Get Technical Support for Your Hyundai Equipment

Contact us at mia@hgb-bearing.com with your hyundai excavator slew bearing model number, operating conditions, and any specific requirements.

GET IN TOUCH WITH OUR ENGINEERS
Tell us your requirements — drawings, size, or application