23034 bearing: complete specifications & equivalents

Specification table

Source: ISO 15 boundary-dimensions standard · extracted 2026-09-24

Standard-interchange bearing: dimensions per ISO 15; CN clearance, P0 tolerance and a stamped-steel cage are catalogue defaults unless the supplier states otherwise, and mass is a geometry-derived estimate. Brand catalogue load ratings and limiting speeds for 23034 are being backfilled — use the inquiry form for certified values.

Cross references & equivalents

No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.

How the 23034 model number is decoded

In the 23000-series (ISO 15 dimension series) the leading 2 marks a double-row spherical roller and the last two digits of 23034 encode the bore: code 34 = 170 mm (code × 5 from 04 upward). The ISO 15 envelope is 260 mm outside diameter and 67 mm width — 6.693 × 10.236 × 2.638 in, with a 45.0 mm radial section height. Two rows of symmetrical barrel rollers on a common sphered outer raceway self-align to shaft deflection while carrying heavy radial load and bidirectional axial load. Typical catalogue practice for a rotating inner ring is a m6 shaft seat, H7 housing and C3 internal clearance; K variants use a 1:12 tapered bore on an adapter sleeve — verify against the mounting arrangement.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The large 170 mm-bore 23034 mounts with real force: use induction heating or hydraulic drive-up on the tapered seat, measure residual clearance in micrometres, and plan lifting fixtures — the 67 mm double-row assembly cannot be drifted into position without brinelling.
• In vibrating-screen and feeder duty the 230 row is a common pick: at 170 mm bore the 23034 gives a 260×67 mm envelope with a wide, stiff section, but it must then run C4 clearance with a vibratory-rated cage — a standard CN row with a plain stamped cage will gall and fail early under the same duty.
• Thermal soak matters on this 170 mm-bore row: a 260 mm housing heating faster than the shaft closes the 45.0 mm section's internal clearance, so a mount that ran quiet cold can seize hot — start from C3/C4 and verify the operating-temperature play before signing off the 67 mm assembly.
• Before fitting 23034, machine the 170 mm shaft seat and 260 mm housing bore with a relief or small fillet so nothing bridges the bearing chamfer; the 67 mm-wide rings only load correctly when the full faces abut, and a large radius pinches the 45.0 mm radial section.
• On a K tapered bore with adapter sleeve, tighten the KM locknut to drive the 23034 up the sleeve, rotating the inner ring, and stop on residual clearance — measured with feelers at the unloaded rollers — not on torque alone; then lock the tab washer so the 170 mm seat cannot creep.
• Read the damage pattern on a removed 23034: spalling concentrated on one side of the 260 mm outer race points to misalignment or thrust overload, while uniform roller-end smearing means minimum-load skidding — the two failures demand opposite corrections.
• Press 23034 using the right ring: force on the inner ring for an interference shaft fit and on the outer ring for a housing fit — transmitting mounting force through the barrel rollers brinells the sphered raceways of the 260 mm assembly.
• Match the cage to the duty: the E/CC stamped window-steel cage is the standard for general 23034 service, while the machined brass CA cage is preferred for heavy shock and vibratory applications — never replace a CA row with a CC row in a screen or crusher without re-rating.