SL04240-PP-2NR Cylindrical Roller Bearing Price

 Description: SL04240-PP-2NR full complement cylindrical roller bearing, bearing used for rope sheave

Part number: SL04240-PP-2NR rope sheave bearing

Inner dia: 240mm 

Outer dia: 320mm

Width: 95mm

Unit net weight: 21kg 

Structure: full complement cylindrical roller 

Availability: in stock

M.I.Q.: 1 pcs

Packing condition: single box

Brand: as per requirement

Directions for mounting and dismounting: during the mounting of cylindrical roller bearings, mounting forces should be applied only to the bearing ring to be mounted; Mounting forces must not be directed through the cylindrical rollers. During dismounting of the bearings, the dismounting forces must not be directed through the fasteners on the split inner ring.

The annular slots in the bearing outer ring allow simple axial positioning of the rope sheave by means of retaining rings. The retaining rings are not included in the scope of delivery. In the case of the design 2NR, each bearing is supplied with two retaining rings.

Application instrcutions: Rope sheave bearings are normally subjected to circumferential load on the outer ring. The outer ring must therefore have a press fit. Joint pressures between pmin = 2 N/mm2 and pmax = 25 N/mm2 have proved effective both in tests and in practical applications. The decisive factors in this case are as follows: ■ There is circumferential load on the outer ring ■ Oblique tension occurs, leading to axial and tilting moment loads ■ The axial loads occurring cannot be securely transmitted by the retaining rings. Transmission of the axial loads is only possible if sufficient joint pressure is present. ■ At the possible operating temperatures of –40 °C to +80 °C, the modulus of elasticity of plastic rope sheaves leads to differences in behaviour: – temperatures above +20 °C lead to significant expansion – temperatures below +20 °C lead to significant contraction.Due to the operating conditions present in rope sheave bearing arrangements, an interference fit between the outer ring and rope sheave is absolutely critical in order to achieve correct bearing function and load transmission. The joint pressure must be between pmin = 2 N/mm2 and pmax = 25 N/mm2.