HRB 7603030TN/DB/P4 precision machine tool screw angular contact ball matching bearing
The design of SKF SNL bearing pedestals is mainly used for applications where the load acts vertically on the bearing surface. In this case, the load that the bearing pedestals can withstand completely depends on the bearing capacity. If the load is acting in another direction, the bearing seat, the bolts connecting the top cover and base of the bearing seat, and the bearing capacity of the ground connection bolts must be checked.
SNL bearing pedestal is generally made of Gray iron. If higher strength cast iron is required for certain applications, ductile iron can be chosen and bearing seats of the same size can be used. The bearing seat made of ductile iron can provide two designs: a design with four connecting bolt holes (FSNLD type) and a design without connecting bolt holes (SSNLD type).
Today, we will mainly understand and learn the meaning of the letters before and after the SNL bearing seat. The meaning of the suffix varies slightly among different brands. Here, we will take the SNL bearing seat of SKF brand as an example.
Vertical bearing seat - SNL 2, 3, 5, and 6 series
Examples and applicable options for SNL bearing seats are as follows:
1. Prefix representing installation bolt holes
-Two elliptical cast holes for installing bolts
Four elliptical cast holes for installing bolts
S without installation bolt holes (can be drilled by oneself)
2. Series
SNL standard vertical bearing seat
3. Bearing seat material
-Grey cast iron
D ductile iron
4. Size code
2 (00) Bearing seat for cylindrical bore bearings with diameter 2 series
3 (00) Bearing seat for cylindrical bore bearings with a diameter of 3 series
5 (00) Bearing seat for diameter 2 series bearings installed on the locking sleeve
6 (00) Bearing seat for diameter 3 series bearings installed on the locking sleeve
.. (00) Bearing size code, (00) x 5=Bearing inner diameter [mm]
5. Suffix
1) /MS1: Drill holes for two mounting bolts
2) /MS2: Drill holes for four installation bolts
3) M: Machined at both ends of the base
4) TURU: Bearing seat for oil lubrication with sealing
5) V: The bearing seat base is equipped with a grease discharge hole
6) VU: With grease discharge holes on both sides of the bearing seat base
