VLI200844-N Slewing Bearings

VLI200844-N Slewing Bearings — INA/Schaeffler Compatible Flanged Light-Series Internal Gear Solution

VLI200844-N Slewing Bearings are flanged light-series four-point contact ball slewing rings with an internal gear, dimensionally compatible with INA/Schaeffler VLI 200 844-N. The raceway diameter is 844 mm, bore 736 mm, outside diameter 948 mm, height 56 mm, and weight 61.5 kg. The internal gear (m8 / z94) is cut into the bore of the inner ring, enabling a compact under-table drive. Luoyang Heng Guan Bearing Technology Co., Ltd. manufactures and supplies this model with MOQ of 1 pc.

What Is the VLI200844-N Internal Gear Slewing Ring?

The VLI 200 844-N is a flanged light-series internal-gear four-point contact ball slewing ring from the INA VLI series 20. It sits on a 844 mm raceway, with an inside bore of 736 mm and an outside diameter of 948 mm. The designation is also written as VLI20 0844 N in some supplier catalogs.

The internal gear (m8 / z94) is positioned inside the bore of the inner ring. This allows a central pinion to drive from below the table — a compact under-table configuration used in filling carousels, pasteurizer turntables, and robot bases.

This bearing is a dimensional replacement for Schaeffler VLI 200 844-N. Light-series cross-references include SKF RKS.22 0841 and INA VLI suffix variants such as -VSP, -RL0, and -RL1.

Full Technical Specifications

Design and Performance Notes

Four-Point Contact Ball Design

A single ball row contacts four points simultaneously, carrying axial, radial, and tilting moment loads within one row. This removes the need for a second bearing row, reducing installation height and overall assembly weight.

Protected Internal Gear — m8 / z94

The gear teeth sit inside the bore, shielded from direct environmental exposure. This suits food washdown lines, outdoor agricultural equipment, and wet processing environments where exposed gearing would degrade faster.

Flanged Mounting — No Counterbore Required

The 12 mm flange with T/t 12 mm centering lands bolts directly to the machine frame without a counterbore or locating ring, which reduces machining requirements and simplifies installation.

Light-Series Load Range

With a static axial load C0a of 600 kN and a weight of 61.5 kg, this bearing is sized for light-duty applications. For reference, the VSI 200 844-N standard series carries a C0a of 1,350 kN — approximately 2.25× higher. Selection should be based on actual duty load calculations.

Standard_VL Clearance

Radial clearance of 0–0.5 mm and axial tilting clearance of 0–0.7 mm are wider than standard-series values, which supports smooth free-running motion in low-load pivot applications such as lab turntables and solar tracker axes.

Ring Material and Sealing

Ring material is 50Mn or 42CrMo4. Rolling balls are GCr15. Raceways are induction hardened to 55–62 HRC, while the ring core remains ductile to absorb shock. Double-lip NBR seals retain grease and block contaminants.

Typical Application Areas

Filling and Packaging Machines

VLI200844-N Slewing Bearings are suitable for common light-series applications such as rotary fillers, cappers, and packaging turntables. The 844 mm raceway accommodates large filling carousels, and the flanged mount installs directly onto the machine frame.

Food and Beverage Processing

Bottle and can line carousels and pasteurizer turntables benefit from the double-lip NBR sealed design. The Standard_VL clearance keeps rotation consistent under continuous low-speed operation.

Rotary Indexing Tables and Light Turntables

Rotary indexers, pallet rotators, and light assembly turntables use the 14-hole flange pattern, which matches many standard turntable mounting configurations.

Collaborative Robots and Automation

Robotic base turntables and AGV rotators operate at low loads and speeds that fall within the light-series load range. The flanged design removes the need for a machined seat in robot base castings.

Medical and Laboratory Equipment

Lab centrifuge platforms and imaging turntables require smooth, low-load rotation with controlled clearance. The Standard_VL tolerance range suits these free-running applications.

Agricultural Excavator

Planter turntables, sprayer booms, and light harvester pivots use the internal-gear configuration for a compact, protected drive. The -25 to +80 °C operating range covers typical outdoor field conditions.

Solar Trackers and Light Material Handling

Single-axis tracker pivots and carousel conveyors run at low loads where the light-series capacity is appropriate, and the operating temperature range suits outdoor installations.

Manufacturing and Quality

Heng Guan Bearing manufactures slewing bearings from 50 mm to 10,000 mm diameter. Precision grades available are P0, P6, P5, and P4.

Production equipment includes CNC vertical lathes, CNC quenching machines, CNC gear shapers, machining centers, grinding machines, and large gear hobbing machines. Dimensional and functional inspection uses coordinate measuring machines and vibration testing equipment before shipment.

All processes are managed under ISO 9001. Products are manufactured to DIN, ISO, and GB standards and are RoHS compliant.

Supply and Customization Options

Custom orders cover bolt pattern changes, alternate ring materials, different seal compounds, surface treatments, and specific precision grades. Old product mapping is available if you have an existing worn bearing without complete drawings.

FAQ

Q: What exactly is the VLI 200 844-N?

A: The VLI 200 844-N is a flanged internal-gear four-point contact ball slewing ring from the INA VLI light series 20. It has a 844 mm raceway diameter, 736 mm bore, 948 mm outside diameter, and 56 mm height, weighing 61.5 kg. The internal gear is m8 / z94, positioned inside the bore.

Q: What is the gear specification of the VLI 844?

A: The internal gear is cut into the bore of the inner ring — module m8, tooth count z94. Standard_VL radial clearance is 0–0.5 mm and axial tilting clearance is 0–0.7 mm. Double-lip NBR seals are fitted as standard.

Q: What is the load capacity of the VLI 844?

A: Dynamic axial load Ca = 180 kN, static axial load C0a = 600 kN. Dynamic radial Cr = 163 kN, static radial C0r = 224 kN. The standard-series VSI 200 844-N carries a C0a of 1,350 kN — approximately 2.25× higher. Confirm your duty load before selecting between the two series.

Q: Is the VLI 844 the same as the VSI 844?

A: No. Both are internal-gear four-point contact rings on a 844 mm raceway, but the VLI 200 844-N is the flanged light series (736 mm bore, 948 mm OD, 61.5 kg, C0a 600 kN), while the VSI 200 844-N is the standard series with approximately 2.25× higher static capacity. Select based on your actual duty load.

Q: How is an internal-gear slewing ring driven?

A: A central pinion below the table meshes with the internal gear teeth inside the bore. This under-table configuration is used in filling carousels, pasteurizer turntables, and robot bases. The protected internal teeth are suitable for washdown and food-grade environments.

Contact Us

Do you have more questions about VLI200844-N Slewing Bearings? Send inquiries to mia@hgbearings.com.