Xibei Bearing Group Import & Export Co., Ltd.

Model Number: 011.25.500 Brand Name: NXZ Key Specifications/Special Features: Slewing ring bearingsSlewing ring bearings can accommodate axial, radial and moment loads acting either singly or in combination and in any directionSo they are widely applied on engineering machinery (mobile crane, tower type crane, excavator, loader), metallurgical machinery, transport machinery, medical instruments Coding method of bearings Two coding methods of slewing ring bearings are as following:1. Adopts stipulation of JB/T2300 standard, which use raceway center circle diameter, rolling element diameter, structure type, transmission type, assembly type and mounting hole type to show the coding method of bearings

Structure type

a.1 01---Single-row four point contact ball slewing bearings
a.2 02---Double-row different diameter ball slewing bearings, the combination of rolling element nominal diameter is the above row/the under row: 25/20/30/25/40/30/50/40/60/50
a.3 11---Single-row crossed cylindrical roller slewing bearing, the rollers are 1:1 cross banding
a.413--- Three-row cylindrical roller slewing bearings, combination of rolling element nominal diameter is the above row/the under row/radial: 25/20/16/32/25/20/40/32/25/45/32/25/50/40/25

1. Transmission types:

b.1 0—without gears
b.2 1—involutes curve cylindrical gear Ext-gear joggle small modulus
b.3 2—involutes curve cylindrical gear Ext-gear joggle big modulus
b.4 3—involutes curve cylindrical gear Int-gear joggle small modulus
b.5 4—involutes curve cylindrical gear Int-gear joggle big modulus

1. Assembly types:

c.1 0—standard type without ring ridge
c.2 1—standard type with ring ridge
c.3 2—special type

1. Mounting hole types

d.1 0—Mounting hole of inner ring and outer ring is through hole
d.2 1—Mounting hole of inner ring and outer ring is tapped hole
d.3 2—Mounting hole of inner ring is tapped hole; the mounting hole of outer ring is through hole