SKF6219-Z/JEMDeep Groove Ball Bearing 95 x 170 x 32 mm, Single Steel Shield One Side, Medium Series, 1 Pc

Product Description

What this part is

A single-row deep groove ball bearing in the 62 medium dimension series — 95 mm bore, 170 mm outside diameter, 32 mm wide — with a pressed steel shield on one side and the other face left open. Deep groove ball bearings take radial load plus axial load in either direction. This is a large motor, fan, pump and gearbox bearing.

Decoding the designation

6 – single-row deep groove ball bearing2 – dimension series 62, the medium section and width19 – bore code, 19 x 5 = 95 mm boreZ – a single pressed steel shield, on ONE side only. Two shields would be 2Z; contact rubber seals both sides would be 2RS1JEM – an SKF factory and variant designation carried on the carton and ring marking; kept here as an ordering referenceNo clearance suffix in the designation – normal (CN) radial internal clearance
The form 6219ZC3 also circulates for this size; that is the greater-clearance variant, and it is carried here as a search reference rather than as this bearing’s clearance class.

What these specs mean in practice

The single shield is the spec that decides the sale, and it is where substitutions go wrong. A 6219-Z is not interchangeable with a 6219-2Z. The open face means the bearing relies on the housing to hold grease or deliver oil from that side, and it will not retain a factory grease fill on its own. Fit a double-shielded bearing in its place and you cut it off from the oil that was feeding it; fit a single-shielded bearing where a double belongs and the open face admits whatever gets past the housing.

Mount it shielded face toward the contamination and open face toward the lubricant supply. Remember too that a shield is not a seal: it runs with a small gap at the inner ring, costs almost no friction and does not limit speed, but it stops dry dust and coarse debris only — not washdown water or coolant.

Clearance is normal (CN), suited to a shaft and housing at similar temperatures with a standard interference fit. If the machine had a C3, fit a C3.

Published specifications

Bore: 95 mmOutside diameter: 170 mmWidth: 32 mmDimension series: 62 (medium)Rows: 1Closure: one pressed steel shield, opposite side open (Z)Internal clearance: normal (CN)Material: through-hardened bearing steelEAN: 7316577661524

Quantity and configuration

Sold as 1 piece. One shield fitted and one face open — that is the design, not a missing part. No snap ring, no housing.

Fitting notes

Decide orientation before pressing: shield toward the dirt, open face toward the lubricant. At 95 mm bore, heat mounting to about 80 to 100 °C beats a cold press. Load only the ring being fitted, never across the balls, or the shield will be pushed out of true and rub.

Interchange guidance

Genuine interchanges are same-envelope single-shielded bearings: FAG 6219-Z, NSK 6219Z, NTN 6219Z and Koyo 6219Z. A 6219-2Z (two shields), a 6219-2RS1 (contact seals), an open 6219 and a 6219/C3 (greater clearance) each change lubrication, sealing or fit-up — related parts, not drop-in equivalents. A 6319 of the same bore is the heavy series, a physically larger bearing.