QU.315.20

QU Non Gear Bearings
  • QU Non Gear Bearings
  • QU Non Gear Bearings

QU.315.20-QU Non Gear Bearings

The QU series is a high-performance toothless four-point contact ball slewing bearing designed to cater to modern customizable rotary machinery systems. Differing from conventional geared slewing rings, this gearless bearing variant abandons integrated gear structures, offering maximum design flexibility for equipment manufacturers. Optimized for light to medium-load cyclic rotation scenarios, the QU series balances durable mechanical performance, low running friction and excellent installation adaptability, serving as a premium universal rotary component for industrial and commercial mechanical applications.


Typical Applications:

Construction machinery such as cranes and excavators

Aerial work platforms and man lifts

Solar tracking systems

Materials handling equipment

Industrial turntables and positioning systems


High load-carrying capacity
Resistance to high and low temperatures
Noise-free operation
Strictly controlled tolerances and appropriate internal clearance
Long service life and low maintenance requirements
Prevention of unexpected downtime (avoiding bearing fracture, seizure, and safety incidents caused by such failures, with anti-tilting capability)

Dimension and Parameters

QU Non Gear Bearings
Model :QU.315.20
Brand :LYMC
Dimensions
D[mm] :408
d[mm] :222
H[mm] :60
Mounting Dimensions
Du[mm] :370
Dn[mm] :260
n :10
Through Hole A :17
D1 :M16
T[mm] :24
Structure Dimensions
n1 :2
h[mm] :10
Weight :34

Characteristics

✦ No gear teeth – Smooth inner and outer rings without teeth for flexible drive integration.

✦ Four-point ball contact – Single-row design handles axial, radial, and tilting moment loads simultaneously.

✦ Compact cross-section – Optimized section height saves installation space.

✦ Induction-hardened raceways – Rolling surfaces hardened for wear resistance and extended service life.

✦ Double lip seals – Fitted with NBR seals on both sides to keep contaminants out and retain lubricant.

✦ Pre-drilled mounting holes – Both rings feature equispaced bolt holes for quick and secure installation.


Features

✦ No gear teeth – Smooth inner and outer rings without teeth for custom drive integration.

✦ Four-point ball contact – Single-row design handles axial, radial, and tilting moment loads simultaneously.

✦ Compact cross-section – Optimized section height saves installation space.

✦ Induction-hardened raceways – Rolling surfaces hardened for wear resistance and extended service life.

✦ Double lip seals – Fitted with NBR seals on both sides to keep contaminants out and retain lubricant.

✦ Pre-drilled mounting holes – Both rings feature equispaced bolt holes for quick and secure installation.


Further Reading