NSK22228EJW33Spherical Roller Bearing – 140 mm ID, 250 mm OD, 68 mm Width, Double Row, Straight Bore, Open, W33 Lubrication Groove, CN Internal Clearance.

Product Description

What this part is:

RHP 22228EJW33 double-row spherical roller bearing in the ISO 222 dimension series, with an outer ring lubrication groove and radial feed holes. Straight bore, open, pressed steel cage, CN clearance. Unit Quantity: 1 Pc.

Decoding the designation:

222 — spherical roller bearing, double row, ISO 222 dimension series. The outer ring raceway is a single sphere, so the roller rows align themselves to it.

28 — the bore code. Bore Diameter: 140 mm.

E — the high-capacity steel-cage design. The roller complement and raceway profile are revised upward from the base design at the same envelope.

J — pressed steel cage, centred on the inner ring and the rollers.

W33 — a lubrication groove machined around the outer ring with three radial holes through to the raceway. Lubricant: Grease or oil.

Specifications:

Rolling Elements: Spherical Roller. Number Of Rows: 2. Series: 222. Bore Type: Straight. Closure Type: Open. Cage Material: Pressed steel. Cage Type: Pressed steel, centred on the inner ring and rollers. Internal Clearance: CN. Bearing Material: Bearing steel. Relubrication Feature: Yes, through the W33 groove and its three radial holes. Dynamic Load Rating: 822,000 N (184,793 lbf). Static Load Rating: 1,080,000 N (242,795 lbf). Limiting Speed: 1,700 rpm grease; 2,200 rpm oil. Harmonization Code: 8482.30.00.

Dimensions and mounting:

Bore Diameter: 140 mm (5.5118 in). Outside Diameter: 250 mm (9.8425 in). Overall Width: 68 mm (2.6772 in). Bore Type: Straight, so the inner ring mounts directly on a cylindrical shaft seat with no adapter sleeve.

Compatibility and replacement:

The 140 by 250 by 68 mm envelope with a W33 groove is the standard ISO 22228 size. Crosses: SKF 22228 CC/W33, NTN 22228EAW33, NSK 22228EAE4, Koyo 22228RW33, Timken 22228EJW33. FAG 22228-E1-XL is an XL execution. RHP 22228EMW33 has a machined brass cage. The tapered-bore sibling is 22228EKJW33. Searchable forms of the number: 22228EJW33, 22228-E-J-W33, 22228 E J W33, 22228EJ W33, 22228E, 22228CCJ, 22228 CJ/CCJ W33.

Frequently asked questions:

What are the dimensions of the RHP 22228EJW33?

Bore Diameter: 140 mm. Outside Diameter: 250 mm. Overall Width: 68 mm.

What are the load ratings and limiting speed?

Dynamic Load Rating: 822,000 N. Static Load Rating: 1,080,000 N. Limiting Speed: 1,700 rpm grease; 2,200 rpm oil.

What does W33 mean on the 22228EJW33?

W33 is a lubrication groove machined around the outer ring with three radial holes through to the raceway. Lubricant: Grease or oil.