VLI200944-N Slewing Bearings
Dimensions: Bore 840 mm, OD 1048 mm, height 56 mm, weight 69.6 kg; flanged mounting with 18 mm fixing bores.
Gear: Internal m8/z107 gear on the outer ring, driven by a central pinion below the table.
Load: C0a 670 kN, about 2.3× lower than VSI 200 944-N (1541 kN), for light-duty applications.
Flagship Uses: Filling & Packaging Machines, with compact under-table drives for filling and pasteurizer carousels.
Other Uses: Cranes, solar trackers, food processing, rotary indexing tables, collaborative robots, medical equipment and light turntables.
Construction: Four-point contact single-row design, radial clearance 0–0.5 mm, axial tilting 0–0.7 mm, NBR seals, 50Mn/42CrMo4 rings and GCr15 balls.
Interchangeability: Direct Schaeffler VLI 200 944-N replacement; SKF equivalents include RKS.22 943 / RKS.22 0941.
Installation: Flanged outer ring bolts directly to the structure; protected internal gear supports compact pinion-driven layouts.
Supply: MOQ 1 pc; stock 2–3 days, standard 25–30 days, custom 45–60 days, with bolt pattern, material, seal, precision and clearance customization.
- Product Description
VLI200944-N Slewing Bearings — INA-Compatible Internal Gear Light Series for Filling, Packaging & Rotary Applications
VLI200944-N Slewing Bearings are flanged, single-row, four-point contact ball slewing rings from the INA VLI Light Series 20, built for light-to-medium duty continuous rotation. With a 944 mm raceway, 840 mm bore, 1048 mm OD, and a weight of 69.6 kg, this ring carries a static axial load of 670 kN. The internal gear (m8/z107) sits inside the bore, enabling a compact under-table pinion drive used across filling carousels, pasteurizer turntables, and rotary indexing tables.
What Is the VLI200944-N Internal Gear Slewing Ring?
The VLI200944-N belongs to the INA/Schaeffler VLI Light Series 20. It is designed as a flanged internal-gear slewing ring for light-to-medium duty rotation systems. Its single-row four-point contact ball design allows one ball row to simultaneously carry axial, radial, and tilting moment loads, keeping the overall height to 56 mm while supporting combined load conditions.
The internal gear (m8/z107) is cut into the bore of the inner ring. This positions the drive pinion beneath the table in a protected, enclosed configuration. This under-table drive layout is widely used in filling carousels, pasteurizer turntables, and rotary indexing tables.
At 69.6 kg for a 944 mm raceway diameter, this ring is lighter than the VSI 200 944-N, which is the standard series carrying a static axial load (C0a) of 1,520 kN — approximately 2.27× higher. The VLI200944-N is rated at C0a 670 kN and is correctly sized for light-duty applications where the VSI series would be over-specified.
Technical Specifications
Parameter | Value |
Raceway Diameter | 944 mm |
Inner Ring Bore (d) | 840 mm (33.07 in) |
Outside Diameter (D) | 1048 mm (41.26 in) |
Total Height (H) | 56 mm (2.21 in) |
Flange Height (hf) | 12 mm |
Centering Diameter (hA) | 20 mm |
Centering Lands (T/t) | 12/12 mm |
Fixing Bore (dB) | 18 mm (outer ring, through holes) |
Outer Flange Bolt Circle (La) | 1020 mm / 16 holes (18 mm through) |
Inner Bolt Circle (Li) | 905 mm / 22 × M12 threaded holes (thread depth Gl 20 mm) |
Max. Radial Load on Fixing Screws (Fr zul) | 90.9 kN |
Dynamic Axial Load (Ca) | 188 kN |
Static Axial Load (C0a) | 670 kN |
Dynamic Radial Load (Cr) | 170 kN |
Static Radial Load (C0r) | 250 kN |
Internal Gear | m8 / z107 |
Radial Clearance | 0–0.5 mm (Standard_VL) |
Axial Tilting Clearance | 0–0.7 mm |
Operating Temperature | -25 to +80 °C |
Structure / Row | Four-point contact ball / single row |
Precision Class | P0 / P6 / P5 |
Ring Material | 50Mn / 42CrMo4 |
Ball Material | GCr15 |
Seal | Double-lip NBR |
Weight | 69.6 kg |
Product Features
Four-point contact, single-row design — one ball row carries axial, radial, and tilting moment loads together. This keeps the ring at 56 mm total height while maintaining performance under combined loads.
Protected internal gear — the m8/z107 gear teeth are cut inside the bore, shielded from external contamination. This configuration suits food processing lines, washdown environments, and locations where exposed external gear teeth would be at risk.
Flanged mounting — the 12 mm flange (hf) with 12 mm centering lands (T/t) bolts directly onto the mating structure. The 16-hole outer flange pattern (La 1020 mm) and 22-hole inner bolt circle (Li 905 mm, M12 threaded) provide a secure, aligned connection without machining a separate locating ring.
Standard_VL clearance — radial 0–0.5 mm and axial tilting 0–0.7 mm. This clearance range supports free-running, low-friction rotation suited to filling machines and light turntables operating under continuous duty.
Material selection — rings are made from 50Mn or 42CrMo4 steel with raceways induction-hardened to 55–62 HRC. GCr15 bearing steel balls provide consistent load distribution. Double-lip NBR seals retain grease and resist moisture and particle ingress.
Typical Application Areas
· Filling and packaging machines — rotary fillers, cappers, and large filling carousels use the 944 mm raceway and flanged mount for smooth carousel rotation with compact under-table pinion drives.
· Food and beverage processing — bottle and can line carousels and pasteurizer turntables benefit from the sealed NBR design and Standard_VL clearance for contamination-resistant operation.
· Rotary indexing tables and light turntables — the 16-hole flange pattern fits standard turntable frames; the 840 mm bore allows cables and hoses to route through the center.
· Automation and rotary base systems — rotary base platforms operating within the light-series load range (C0a 670 kN) can use the large bore for internal cable management.
· Light-duty structural rotation — applications where the standard VSI series load capacity exceeds the actual duty cycle requirement.
Interchangeability and Compatibility
The VLI200944-N Slewing Bearings are dimensionally compatible with the Schaeffler/INA VLI 200 944-N. SKF reference RKS.22 0941 is commonly cited as a cross-reference; verify dimensional and load compatibility against your application requirements before substitution.
Do not substitute with VSI 200 944-N. Both share a 944 mm raceway and internal gear, but the VSI 200 944-N is the standard (heavier) series with C0a 1,520 kN — approximately 2.27× higher than the VLI light series. Selecting the VLI for a duty cycle requiring the VSI load rating will result in premature failure.
When replacing an existing unit, confirm bore (840 mm), OD (1048 mm), height (56 mm), bolt pattern, and gear module (m8/z107) before ordering.
Manufacturing and Quality Control
Luoyang Heng Guan Bearing Technology Co., Ltd. produces each ring using CNC vertical lathes, CNC quenching machines, CNC gear shapers, machining centers, grinding machines, and large gear hobbing machines.
Each bearing is inspected using coordinate measuring machines, vibration testers, and life testing machines. Raceway hardness is verified to 55–62 HRC after induction hardening. Full traceability is maintained from raw material to finished product. Precision grades P0, P6, and P5 are available. The facility operates under ISO 9001 quality management and products are RoHS compliant.
Ordering and Customization
Item | Detail |
MOQ | 1 piece |
Stock Lead Time | 2–3 business days |
Standard Production | 25–30 days |
Custom Orders | 45–60 days |
Customization Options | Bolt pattern, ring material, seal type, precision grade, clearance |
Gear Customization | Module and tooth count available on request |
Services | Technical consultation, installation guidance, product mapping for existing units |
FAQ
Q: What are the key dimensions of the VLI200944-N?
A: Raceway 944 mm, bore 840 mm, OD 1048 mm, height 56 mm, weight 69.6 kg. Internal gear is m8/z107, located inside the bore of the inner ring.
Q: What load ratings does the VLI200944-N carry?
A: Dynamic axial Ca = 188 kN, static axial C0a = 670 kN, dynamic radial Cr = 170 kN, static radial C0r = 250 kN. These ratings are sized for light-duty continuous rotation applications.
Q: What is the difference between VLI200944-N and VSI200944-N?
A: Both use a 944 mm raceway with internal gear and four-point contact balls. The VLI200944-N is the light series (C0a 670 kN, 69.6 kg). The VSI200944-N is the standard series with C0a 1,520 kN — approximately 2.27× higher. Select based on your actual duty cycle and calculated load requirements.
Q: How is the internal gear driven?
A: A drive pinion meshes with the internal gear teeth inside the bore from below the table. This under-table configuration is the standard setup for filling carousels, pasteurizer turntables, and similar rotary systems. The enclosed internal teeth are less exposed to contaminants than external gear designs.
Q: Can bolt pattern or material be customized?
A: Yes. Bolt pattern, ring material (50Mn or 42CrMo4), seal type, precision grade, clearance, and gear module/tooth count can be modified. Contact Us with your application requirements for confirmation.
Contact Us
Do you have more questions about VLI200944-N Slewing Bearings? Send your inquiry or technical question to mia@hgbearings.com.
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