Zb2.22.1088.201-1sppn Larger Slewing Ring Bearings Turntable Bearing Gear Bearings for Mining Equipment
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| Standard or Nonstandard: | Standard |
| Feature: | High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant |
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Basic Info.
- Model NO.
- Zb2.22.1088.201-1spp
- Sealing Gland
- Sealed On Both Sides
- Rolling-Element Number
- Single-Row
- Roller Type
- Straight Raceway
- Material
- 50mn/42CrMo
- Type
- External Gear
- Advantage
- Low Noise, Low Vibration, High Precesion
- Seals Type
- as Requirement NBR
- MOQ
- 1 Set
- Application
- Mining, Petroleum, Automatic, Excavator, Crane
- Certificate
- 3.1, 3.2, ABS, BV, CCS, Nk
- Delivery Time
- 3-40days
- OEM&ODM
- Yes
- Precision
- P0, P6, P5, P4, P3, P2
- Rolling Element
- Gcr5
- Operating Tempereature
- -40-+150
- Raceway Hardness
- 55~62HRC
- Teeth
- None Gear/Internal Gear/External Gear
- Transport Package
- Plywood Package
- Specification
- 50mm-8000mm
- Trademark
- LYMC
- Origin
- Luoyang
- HS Code
- 8482109000
- Production Capacity
- 3000PCS Per Year
Packaging & Delivery
- Package Size
- 120.00cm * 120.00cm * 20.00cm
- Package Gross Weight
- 190.000kg
Product Description
The ZB2 Series redefines compact high-precision drives through its innovative Double-Row Internal Gear System. Engineered for the most space-constrained yet demanding applications, this series delivers exceptional torque density, torsional rigidity, and smooth operation by reimagining the planetary gear architecture from the inside out.
Core Feature: Double-Row Internal Gear Architecture
The ZB2 Series incorporates a patented design featuring two parallel rows of internal gear teeth machined into a single, monolithic housing. This internal gear meshes with corresponding planetary pinions, creating a highly compact, robust, and balanced power transmission core. This inward-focused design is key to its performance advantages.
Key Features & Benefits
-
Maximized Structural Rigidity & Compactness: By utilizing the housing itself as a precision internal gear, the structure becomes exceptionally rigid and integral. This eliminates alignment issues and allows for an extremely short axial length, offering one of the best torque-to-size ratios on the market.
-
Exceptional Moment Load Capacity & Stability: The wide, dual-row internal gear support provides a large, continuous bearing surface for the planet pins. This results in superior capacity to handle high radial and axial moment loads directly at the output, ideal for cantilevered applications.
-
Optimized Load Distribution & Smoothness: The dual-row internal gear design ensures perfectly balanced, symmetrical load sharing across all meshing points. This minimizes internal stresses, reduces vibration, and enables exceptionally smooth and quiet operation even under high loads and speeds.
-
High Precision & Repeatability: The monolithic internal gear ensures exceptional concentricity and eliminates assembly tolerances found in multi-piece ring gears. Combined with precision-ground gears, this guarantees consistently low backlash and excellent positional accuracy.
-
Integrated & Sealed Design: The design inherently reduces part count and potential leakage paths. When combined with advanced sealing, it provides superior protection against contamination in harsh environments.
-
Efficient Heat Dissipation: The compact, high-metal-mass design of the internal gear housing allows for efficient thermal conductivity, aiding in heat dissipation during continuous duty cycles.
Core Advantages
-
Unmatched Design Efficiency: Its ultra-compact form factor and high load capacity enable radical miniaturization of machinery, saving weight and space without sacrificing performance.
-
Enhanced System Accuracy: The extreme rigidity and integrated construction minimize angular deflection, leading to higher dynamic stiffness, faster response times, and improved end-point accuracy in motion systems.
-
Superior Reliability & Longevity: The balanced load distribution and robust monolithic structure significantly reduce wear on individual components, extending service life and mean time between failures (MTBF).
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Simplified Integration: The compact, rigid flange design simplifies mounting and alignment, reducing installation time and complexity.
Application Fields
The ZB2 Series is the optimal choice for advanced applications where space, weight, and precision are critical constraints:
-
Advanced Collaborative & Articulated Robotics: Ideal for robot wrist joints and forearm axes where compact size is crucial to dexterity, yet high torque and moment load capacity are required.
-
Direct-Drive Rotary (DDR) Tables & High-Precision Indexers: Serves as the core drive element in compact, high-stiffness rotary stages for precision machining, inspection, and assembly.
-
Aerospace & Defense Actuation: Used in compact actuation systems for flight control surfaces, radar positioning, and optical stabilization platforms where reliability and power density are paramount.
-
Semiconductor Manufacturing: Precision stages for wafer steppers, probing stations, and nanoscale positioning equipment requiring minimal vibration and high stiffness.
-
Medical & Surgical Robotics: Provides the necessary combination of compact size, high force output, and smooth, precise motion for surgical tools and diagnostic imaging devices.
-
Advanced Optical & Laser Systems: Gimbals and positioning stages for high-power lasers, communication systems, and imaging equipment where stability is critical.
Type Dimensioni
DimensionsFori di fissaggio
Fixing HolesDentatura
Gear dataWeight Codice
CodeCurva De de di Di Dx He Hi Ht Hd Fe Fi N V L w m Z xm Dp fz
normfz
max[mm] [ mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [-] [mm] [- [mm] - [mm] [mm] [kN] [kN] [kg] EB2.22.0307.200-1SPPN 1 432 309 305 224 394 83 83 92 50 360 254 16 17 25 12 6 70 - 420 204 408 51 EB2.22.0383.200-1SPPN 2 504 385 381 300 466 83 83 92 75 436 330 16 17 25 12 8 6 - 488 408 816 64 EB2.25.0475.200-1SPPN 3 595 477 473 382 565 88 88 98 50 540 410 24 17 25 14 5 117 - 585 17 34 85 EB2.25.0575.200-1SPPN 4 712 577 573 470 670 88 88 98 75 640 508 2 17 25 9 8 87 - 696 408 816 123 EB2.20.0752.200-1SPPN 5 864 754 75 0 6 78 8 33 83 83 92 76 800 706 36 17 25 9 6 142- 85 2310 6,202 114 EB2.25.0821.200-1SPPN 6 979 823 819 718 935 92 92 102 86 893 753 36 21 31 15 10 94 +11 940 7,063 14,126 200 EB2.20.0968.200-1SPPN 7 1080 970 966 89 3 10 428 3 83 92 76 0159 22 30 25 0 8 3- 1064 4134 8,269 148 EB2.25.1077.200-1SPPN 8 1200 1079 1075 976 1163 88 88 98 77 1135 1012 36 19 - - 8 48 - 1184 4,189 8,378 210 EB2.28.1215.200-1SPPN 9 1380 1218 1212 1095 1330 98 98 108 90 1290 1135 48 23 34 16 10 136 - 1360 612 1,224 325
Four-point contact ball slewing turntable bearings
consist of two ring seats. Compact structure, light weight, steel ball and arc track contact at four points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.
Single row cross roller slewing bearing
Composed of two or three rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.
Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc
Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest one of the four structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.
SLEWING BEARING RINGS
Rings are mainly made of 50Mn carbon steel or alloy steels such as 42CrMo4 and the choice of material depends on the required mechanical properties. Alloy steels are often used for heavy-duty applications. Their structural characteristics mean that heat treatments are more effective and greater surface hardness can be obtained than with carbon steels. Stainless steels such as AISI420 or AISI440C can be used for applications where corrosion resistance is required.
RACEWAYS
The raceways are heat-treated by induction in order to achieve a maximum surface hardness of 62 HRC for carbon or alloy steels, or 58 HRC for stainless steels. The hardening depth can vary depending on the type of steel. Hardening treatment is essential to allow the slewing coupling to support the heavy-duty loads it is exposed to in its intended application.
ROTATING ELEMENTS
The rotating elements used in slewing bearings may be balls or cylindrical rollers; both are typically made of 100Cr6 steel but other materials such as ceramic (zirconium oxide ZrO2 or silicon nitride Si3N4) or stainless steel (AISI440C) can be used. Rolling elements with different materials, sizes and precision grades are selected depending on the desired results.
CAGES OR SPACERS
Slewing bearing clearance plays a crucial role and is defined and optimised according to the application and performance to be achieved.
Cages or spacers made of different materials can be used to separate rolling elements, balls or rollers, depending on the loads and speeds required by the specific application.
PROTECTIONS
Special sliding seals are fitted between the inner and outer ring to protect the slewing bearing against the ingress of debris, dust or water particles that could affect its operation. The material used for seals is typically NBR rubber, but different materials can be chosen for specific applications.
LUBRICANT
The lubricant is another very important factor to ensure effective operation of the base bearing. The type of lubricant, quantity, quality, lubrication intervals, number and position of greasing points are determined according to the performance required of the slewing bearing and any specific customer requirements.
GEARED RINGS
Slewing bearing rings can be spur-gear or, more rarely, helical-gear. The gear module is sized and selected according to the application requirements.
Typically, the gearing is soft, i.e. untreated - the maximum hardness of untreated gears is 30 HRC for 42CrMo4. When service conditions require it, the gear surface can be induction-hardened to achieve a surface hardness of 60 HRC. Gear hardening is required when at least one of the following variables must be satisfied:
- high rolling torque
- high rotating speed
- unfavourable environmental conditions, presence of abrasive elements
- maximum tooth lifetime
The experience gained by LYMC Bearing allows us to design slewing bearings to specific customer needs. You can get the right product for your machines or systems without having to compromise with an off-the-shelf product.
Customer Feedback:
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Application:
- Excavators - Drilling rigs - Mining Equipments - Cranes -Offshore Equipments - Vehicles - Machine Tools - Wind Turbines
About Us:
Luoyang MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers' project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.
Our Service:
FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years' experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service.
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