H715343-H715311 Bearing H715343-99401 Roller Bearing SET 419

H715343-H715311 Bearing Specification:

H715343-H715311 bearing is single row structure cone and cup set.
For this bearing,
Dimensions: 68.262*136.525*46.038mm (d*D*T)
Mass: 3.23kg
Cone Number: H715343
Cup Number: H715311
Cage Material: stamped steel
Oil Lubrication Limit Speed: 2900 tr/min
Working Temperature: -30 °C to 120 °C
Equivalents: H715343 – H715311, H715343/H715311, H715311/H715343, H715343-99401, H715343/311, H715343-70000 / 311-20024, H715343-99401, SET419, set 419, Set419, 4T-H715343/H715311

Tapered Roller Bearing SET Cross Reference:

Practices Manual:

1. Storage and handling

Keep H715343-99401 bearings in original sealed packaging until just before mounting.
Store horizontally in a clean, dry, vibration‑free area (15–25°C, low humidity).
Avoid dropping or spinning the bearing dry; microscopic dents (brinelling) will shorten life.
Handle with clean, dry, lint‑free gloves; keep perspiration and solvents off raceways.

2. Inspection before installation

Verify correct Set419 bearing part numbers on cone and cup (H715343 / H715311).
Check raceways and rollers for nicks, corrosion stains, or discoloration (blue/brown = overheating).
Measure bore and OD seats in housing/shaft for correct roundness (≤ 0.0015 mm per 25 mm diameter) and surface finish (Ra 0.4–1.6 μm recommended).

3. Preparation of mating parts

Clean shaft and housing seats with solvent and lint‑free wipes.
Remove burrs and raised metal; use a fine stone if needed.
Lightly oil (not grease) the fits just before assembly to ease mounting and prevent fretting.

4. Mounting practices

Press or heat the rotating ring (usually the cone on the shaft). Use an induction heater; limit cone temperature to 110–120°C maximum.
Apply force only through the ring being mounted (never transmit press force through rollers).
Seat the cup fully against the housing shoulder (use a press tool with uniform face).
Assemble in matched pair (mirror) if you need axial location in both directions; set preload/clearance correctly.

5. Grease filling and relubrication

Fill only 25–35% of the free internal volume (do not pack solid) to limit churning heat.
Replenish based on operating temperature and speed; as a guide: at 80°C and moderate speed, inspect or relube every 3–6 months; at 60°C, intervals may double.
Purge old grease by adding fresh while slowly turning the shaft, then remove excess purge to prevent lip seal blowout.