ER SERIES

ER Extended Inner Ring Insert Bearing

Set Screw Type. Catalogue-backed dimensions, exact series drawing and RFQ support from GBC.

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Product Overview

ER combines set-screw shaft locking with an extended inner ring. The extra inner-ring length changes the axial envelope, so B, S and P are important when the bearing sits close to collars, pulleys or guards.

The published drawing and dimensional table follow the GBC insert-bearing catalogue for this ER series. It is defined by set screws on extended inner ring, a insert-bearing outer profile per catalogue drawing, and the dimensional rows listed below. For broader bearing navigation, explore the Bearings range.

Dimensional Drawing

The drawing below is cropped directly from the supplied catalogue. Use its dimension letters with the table; do not scale the image to estimate dimensions.

Technical Parameters

Base metric rows and documented catalogue models are shown here. Inch-bore suffixes remain available where they appear in the catalogue; quote the complete suffix when an inch shaft is involved. Load ratings are catalogue values and should be checked together with duty, speed, lubrication and mounting conditions.

Selection and Housing Match

Compare the shaft bore and P dimension with the existing assembly. If replacing a conventional UC-style insert, verify clearance on both sides instead of assuming the extended ring will fit the same axial space.

Installation Notes

Before tightening the set screws, check that the extended inner ring does not interfere with neighboring components. Tighten both screws to the catalogue limit for the actual screw thread and avoid using a larger wrench simply because the ring is wider.

For set-screw rows, the catalogue gives the following maximum tightening torques. Use the thread shown in the selected bearing row; a torque value belongs to the screw size, not simply to the bearing bore.

Catalogue Construction Notes

The catalogue describes insert bearings as single-row deep-groove ball bearings and shows dual-seal and triple-lip sealing arrangements within the product family. It also documents hardened inner-ring areas and an anti-rotation device used when a spherical insert is fitted with clearance in its housing. Confirm the exact suffix when a particular seal is required.

Typical Applications

This series is considered for conveyors, textile equipment and industrial machinery that benefits from an extended inner-ring mounting surface. Application fit still depends on shaft size, housing geometry, contamination, relubrication needs and the real radial/axial load pattern. For food-processing equipment, specify any material, lubricant or washdown requirement explicitly rather than assuming the standard insert meets a hygienic specification.

Ordering Information

Model codes should be ordered exactly as documented. The catalogue uses -G for relubricatable versions in applicable SB/SA families, C-prefix notation for cylindrical outside-diameter variants, 2RS where the double-rubber-seal designation is part of the model, and +H for UK adapter-sleeve combinations. Not every suffix applies to every series.

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