RB Series
Standard Подшипники скрещенных роликов
30–800mm Bore | Разъёмное наружное кольцо | Full Complement | P5/P4/P2 Grade
The RB series is the foundational подшипник скрещенных роликов type — featuring a one-piece внутреннее кольцо with a two-piece (separable) наружное кольцо. The full complement roller design (no cage/сепаратор) maximizes грузоподъёмность per unit поперечное сечение. The industry-standard choice for machine tool индексный столs, rotary positioning tables, and precision turntables worldwide.
Standard Подшипники скрещенных роликов — Рабочая лошадка отрасли для Rotary Tables & Indexers
Luoyang Songju RB series is the standard подшипник скрещенных роликов type, featuring a one-piece внутреннее кольцо and a two-piece (separable) наружное кольцо secured by specialized bolts or rivets during transport. This classic design has been the trusted choice for machine tool rotary axes and precision indexing mechanisms for decades.
The full complement roller design — with no cage or сепаратор between rollers — maximizes the number of load-carrying rollers within the bearing поперечное сечение. This обеспечивает the highest possible грузоподъёмность for a given envelope size, making RB bearings ideal for тяжёлый machine tool applications with significant cutting forces and overturning moments.
Разъёмная наружное кольцо позволяет fine adjustment of internal clearance or application of preload during installation — a critical advantage for achieving zero-backlash operation in precision positioning systems. Доступно в P5, P4, and P2 класс точностиs from подшипниковая сталь GCr15. Открытый type (standard) and sealed type (suffix UU) configurations cover размер отверстияs from 30mm to 800mm.
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RB Series — Standard Crossed Roller Bearing Model Параметры
Репрезентативный список моделей для RB series standard подшипник скрещенных роликовs. Full model range extends from RB 2008 to RB 1250110. Контакты our engineering team for models not listed below.
| Bearing Model | d (mm) | D (mm) | B (mm) | Cr (kN) | C0r (kN) | Масса (кг) |
|---|---|---|---|---|---|---|
| RB 3010 | 30 | 55 | 10 | 7.35 | 8.36 | 0.12 |
| RB 4010 | 40 | 65 | 10 | 8.33 | 10.6 | 0.15 |
| RB 5013 | 50 | 80 | 13 | 16.7 | 20.9 | 0.29 |
| RB 6013 | 60 | 90 | 13 | 18.0 | 24.3 | 0.33 |
| RB 7013 | 70 | 100 | 13 | 19.4 | 27.7 | 0.38 |
| RB 8016 | 80 | 120 | 16 | 30.1 | 42.1 | 0.74 |
| RB 9016 | 90 | 130 | 16 | 31.4 | 45.3 | 0.81 |
| RB 10020 | 100 | 150 | 20 | 33.1 | 50.9 | 1.45 |
| RB 11020 | 110 | 160 | 20 | 34.0 | 54.0 | 1.56 |
| RB 12025 | 120 | 180 | 25 | 66.9 | 100.0 | 2.62 |
| RB 13025 | 130 | 190 | 25 | 69.5 | 107.0 | 2.82 |
| RB 14025 | 140 | 200 | 25 | 74.8 | 121.0 | 2.96 |
| RB 15025 | 150 | 210 | 25 | 76.8 | 128.0 | 3.16 |
| RB 15030 | 150 | 230 | 30 | 100.0 | 156.0 | 5.3 |
| RB 20025 | 200 | 260 | 25 | 84.2 | 157.0 | 4.0 |
| RB 20030 | 200 | 280 | 30 | 114.0 | 200.0 | 6.7 |
| RB 20035 | 200 | 295 | 35 | 151.0 | 252.0 | 9.58 |
| RB 25025 | 250 | 310 | 25 | 69.3 | 150.0 | 4.97 |
| RB 25040 | 250 | 355 | 40 | 195.0 | 348.0 | 14.8 |
| RB 30025 | 300 | 360 | 25 | 76.3 | 178.0 | 5.88 |
| RB 30035 | 300 | 395 | 35 | 183.0 | 367.0 | 13.4 |
| RB 40040 | 400 | 510 | 40 | 241.0 | 531.0 | 23.5 |
| RB 50040 | 500 | 600 | 40 | 239.0 | 607.0 | 26.0 |
| RB 50070 | 500 | 680 | 70 | 536.0 | 1020.0 | 86.1 |
| RB 60040 | 600 | 700 | 40 | 264.0 | 721.0 | 30.6 |
Все модели доступны с P5, P4, and P2 класс точностиs. Standard: подшипниковая сталь GCr15, full complement (no cage). Suffix UU = double sealed (sizes up to 300mm). Larger sizes available — contact engineering for RB 700–1250 series. IKO equivalent: CRB series. THK equivalent: RB series.
Почему выбирают Luoyang Songju RB Standard Подшипники скрещенных роликов
The original подшипник скрещенных роликов — maximum грузоподъёмность for demanding machine tool applications
Full Complement — Maximum Load Capacity
The absence of a cage or сепаратор allows the maximum possible number of cylindrical rollers to be packed into the bearing поперечное сечение. This обеспечивает the highest load ratings in the подшипник скрещенных роликов family — essential for тяжёлое резание applications where every kilonewton counts.
Adjustable Зазор & Преднатяг
The two-piece separable наружное кольцо позволяет fine adjustment of internal clearance during installation. Apply negative clearance (preload) for zero-backlash operation — critical for precision positioning and contour machining where reversal errors must be eliminated.
Optimized for Inner Ring Rotation
The one-piece внутреннее кольцо обеспечивает the most stable, accurate rotating reference surface. Идеально для machine tool поворотный столs where the внутреннее кольцо rotates with the workpiece or tool and rotational accuracy directly determines machining precision.
Widest Диапазон внутренних диаметров: 30–800mm
From compact RB 3010 (30mm bore, 0.12 kg) to massive RB 800100 (800mm bore, 247 kg), the RB series covers the broadest size range of any подшипник скрещенных роликов type. A single bearing family for rotary axes of all scales.
Industry Standard Since 1970s
The RB series is the original подшипник скрещенных роликов design, introduced by THK in the 1970s and now manufactured globally. Choosing RB гарантирует multi-source availability, proven reliability, and compatibility with decades of existing machine designs and tooling.
IKO CRB / THK RB Interchangeable
Прямая размерная замена for IKO CRB series and THK RB series standard подшипник скрещенных роликовs. Same mounting envelope, same load ratings — конкурентные цены with shorter delivery from our Luoyang facility.
Отрасли и применения for RB Series Standard Подшипники скрещенных роликов
RB Series подшипник скрещенных роликовs are trusted across a wide range of precision industries worldwide.
CNC Rotary & Index Tables
The RB series is the bearing inside virtually every precision machine tool поворотный стол. Full complement design handles the тяжёлое резание loads, overturning moments, and duty cycles of production machining environments.
Precision Turntables & Positioners
Welding positioners, assembly turntables, and automated test stands rely on RB bearings for smooth, rigid rotation under eccentric loads. Adjustable preload позволяет zero-backlash operation for precision positioning.
Radar & Antenna Pedestals
Large-bore RB bearings (300mm+) support azimuth rotation in radar pedestals, satellite communication antennas, and optical telescope mounts. High moment грузоподъёмность handles wind loads and off-axis payloads.
Heavy Industrial Machinery
Mining equipment slewing rings, construction machinery turntables, and material handling rotators. Large RB bearings (500mm+) with seals provide reliable rotation in harsh уличные условияs with minimal maintenance.
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