What is ZZ in bearing?

Deep groove ball bearing 608-ZZ - 8x22x7 mm - 123BearingDeep Groove Ball Bearing 608-ZZ Generic, Inner diam. 8 mm, Outer diam. 22 mm, Width 7 mm

Bearing 6308 ZZ/C3, specifications | Fersa BearingsTechnical details for bearing 6308 ZZ/C3. Bearing type, size, inner and outer diameter, weight, OEM references, manufacturer/brand part number and Ball Bearings - NTN SNRBearing Design and Features,. Seal/Shield Bearing Types and Selection. Shield type. Seal type. Type, code no. Non-contact type ZZ. Non-contact type LLB

Bearing Closures - Bearing Seals and Bearing Shields | ASTType ZZ - Non-removable, non-contact metal shield retained in the outer ring via crimping, or pressing. This type of shield cannot be removed once installed. This 

Why do we use a ZZ bearing? - QuoraBearings are provided with shields / seals on bothsides to retain factory filled lubricant. Bearings with steel shields are termed as ZZ as suffix after their designated 6913 ZZ / Product detail / Koyo Bearings (JTEKT)6913 ZZ · Specifications (Boundary dimensions etc) · Mounting dimensions · Refer. · Technical calculation for this product. · For those who are considering the 

Designation system | SKF | SKFAn example and the applicable options for SKF deep groove ball bearings are given below. Example. W 619/6 X-2RS1, where, W = 619/6 =Types of Bearing Shields and Seals for the SMB rangeShields (ZZ). bearing shields Most of our bearings are available with metal shields. Shields are designed to prevent larger particles from entering the bearing 

boundary dimensions and identifying numbers for bearings(Example 1) 6 3 08 ZZ C3. Radial Clearance C3. (Internal Clearance Symbol). Shields on Both Sides. (Shield Symbol). Bearing Bore 40 mm. (Bore Number)DEEP GROOVE BALL BEARINGSTable 1 Features of Sealed Ball Bearings. Type. Shielded Type. Non-Contact. Contact Rubber Sealed Type. (ZZ Type). Rubber Sealed Type. (DDU Type)