TorringtonSTO30ZZYoke Type Track Roller with Inner Ring – 30 mm ID, 62 mm OD, 25 mm Width, Shields Both Sides, Needle Rollers

Product Description

What this part is:

Torrington STO30ZZ yoke type track roller with inner ring, also called a support roller. A thick-walled outer ring runs directly on a track or cam, with a caged needle roller complement and an inner ring for straddle (yoke) mounting on a pin or shaft. Shielded on both sides. Unit Quantity: 1 Pc.

Decoding the designation:

STO — yoke type track roller with inner ring, metric, formerly designated NAST.

30 — inner ring bore: 30 mm.

ZZ — two metal shields.

Specifications:

Bore Diameter: 30 mm. Outside Diameter: 62 mm. Overall Width: 25 mm (inner ring). Outer Ring Width: 24.8 mm. Rolling Elements: Needle Roller. Closure Type: Shields both sides. Seal Type: ZZ metal shields.

Dimensions and mounting:

Yoke (straddle) mounting on a pin or shaft through the 30 mm inner ring bore. The 62 mm outer ring carries rolling and shock loads on track and cam-driven equipment.

Compatibility and replacement:

Cross-references: Koyo STO30ZZ; Consolidated STO-30-ZZ; Torrington NAST30ZZ (previous designation, same 30 x 62 x 25 mm envelope).

Frequently asked questions:

What are the main dimensions of the Torrington STO30ZZ?

Bore 30 mm, outside diameter 62 mm, inner ring width 25 mm and outer ring width 24.8 mm.

What is the older designation for the STO30ZZ?

The previous Torrington designation is NAST30ZZ, covering the same 30 x 62 x 25 mm envelope.

What closure and rolling elements does the STO30ZZ have?

Two metal shields (ZZ) and a caged needle roller complement with an inner ring.