RHP1155-2CGWide Inner Ring Bearing Insert, 2″ Bore, 100 mm OD, 55.6 mm Wide, Parallel Outer with Snap Ring, Setscrew Lock

Product Description

What this part is:

An RHP Self-Lube® wide-inner-ring ball bearing insert for a 2 in shaft, built with a parallel outside diameter rather than the spherical seating of the standard 1000-series insert, and supplied with a snap ring fitted in a groove on the outer ring OD. Bore 2 in, outside diameter 100 mm, overall width 55.6 mm. Locking is by setscrews in the extended inner ring.

Decoding the designation:

1155 — RHP Self-Lube bearing group. The 1100 and 1300 blocks are the parallel-outer-ring inserts, offered with relubrication and circlip facilities for assembly into a purchaser’s own housing; the 1000 and 1200 blocks are the spherical-outer inserts for RHP cast-iron and thermoplastic housings.

-2 — nominal bore in inches. On this scheme the trailing group is the shaft size, quoted in inches on inch parts and millimetres on metric parts.

C — circlip (snap ring) and its groove on the outside diameter.

G — grub screw, that is setscrew, shaft locking.

What these specs mean in practice:

The parallel outer ring is the difference that governs where this insert can go. A spherical-outer insert relies on a matching spherical seating in the housing to take up initial misalignment on assembly. A parallel outer ring sits in a plain cylindrical bore, so it drops into a machined pocket or a purchaser-built housing and carries no self-aligning capability. The snap ring in the OD groove locates the insert axially in that bore.

The setscrew lock is two knurled cup-point screws set into the extended inner ring and tightened down onto the shaft. It is the simplest RHP locking arrangement; the eccentric-collar version of the same insert is the 1155-2DEC.

Published ratings and mounting data:

Bore: 2 in (50.8 mm). Outside diameter: 100 mm (3.937 in). Overall width: 55.6 mm (2.189 in). Outer ring form: parallel, with circlip groove on OD. Snap ring: fitted. Dynamic load rating: 43.5 kN. Static load rating: 29.2 kN. Limiting speed: 3,100 rpm. Rolling elements: one row of balls. Cage: two-piece riveted pressed steel. Seal: single-lip nitrile. Relubrication: grease groove in the outer ring. Standard grease temperature range: −20 to +110 °C.

Quantity and configuration:

1 Pc. Insert bearing only, with snap ring. No housing.

Mounting data:

Housing bore: cylindrical, sized to the 100 mm outside diameter. Axial location: snap ring in the outer ring OD groove. Shaft locking: two setscrews in the extended inner ring. Relubrication port alignment: the outer-ring grease groove.

Interchange guidance:

1155-2C is the same insert without the grub-screw lock; 1155-2 is the plain parallel-outer version without the circlip; 1155-2DEC carries eccentric-collar locking. Those are related sizes on the same envelope rather than direct substitutions, because the locking method and the circlip both change.