SKF6211-2Z/C3Deep Groove Ball Bearing – 55 mm Bore, 100 mm OD, 21 mm Width, Steel Shields, C3 Clearance

Product Description

What this part is

SKF 6211-2Z/C3 single-row deep groove ball bearing with pressed steel shields on both faces. Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Cylindrical. Closure Type: Shielded both sides, non-contact. Cage Material: Pressed steel. Internal Clearance: C3. Lubricant: Grease. Bearing Material: Bearing steel. Item Weight: 0.618 kg (1.36 lb). Series: 62. Base Number: 6211. GTIN: 7316576681356.

Decoding the designation

6211 is the ISO 62 medium series at a 55 mm bore. 2Z is a pressed steel shield on each face. C3 is radial internal clearance greater than normal. Written as 6211-2Z/C3, 6211-2Z-C3 and 6211ZZC3.

What these specs mean in practice

Dynamic Load Rating: 46,200 N. Static Load Rating: 29,000 N. Reference Speed: 14,000 rpm. Limiting Speed: 7,000 rpm. A 2Z shield runs with a small clearance against the inner ring shoulder rather than rubbing on it, so it holds the grease charge in and coarse debris out while adding no friction torque — that is why a shielded bearing keeps close to the speed rating of the open version. The bearing arrives greased and sealed for life. C3 clearance leaves extra room at rest for the interference fit and the running temperature difference between shaft and housing to take up.

Quantity and configuration

Unit Quantity: 1 Pc. One bearing per sale unit, shielded and grease filled.

Mounting data

The 55 mm cylindrical bore seats on a plain shaft journal with an interference fit; the 100 mm outside diameter locates in the housing bore. Both rings abut shoulders that clear the shield outer edges.

Interchange guidance

6211 is an ISO-pattern designation and the shield and clearance suffixes translate directly. Cross-Reference 1: FAG 6211-2Z-C3. Cross-Reference 2: NSK 6211ZZC3. Cross-Reference 3: NTN 6211ZZC3. Cross-Reference 4: Koyo 6211ZZC3. Cross-Reference 5: NACHI 6211ZZC3. On NSK, NTN, Koyo and NACHI the ZZ code means steel shields, matching SKF’s 2Z. Searchable forms: 6211-2Z/C3, 6211-2Z-C3, 6211ZZC3, 6211 2Z C3, 6211.