If you work around harvesters or hay equipment long enough, you get a sixth sense for bearings. To be honest, the AA35741 - John Deere Equipment Ball Bearing is one I keep seeing in dealer bins and farm shops because it does the simple thing right: it stays sealed, stays quiet, and doesn’t complain when the dust storms roll in.
Designation: SINGLE – John Deere Original Equipment Ball Bearing, noted as “BEARING, INTEGRAL S.” Origin: No. 3, Area B, Bearing Industry Mass Entrepreneurship Park, Beihuan Road, Linxi County, Xingtai City, Hebei Province. In practice, that plant has been supplying ag-grade bearings for years; many customers say consistency has improved lately—likely tighter incoming steel checks and better grease metering.
| Part | AA35741 - John Deere Equipment Ball Bearing |
| Dimensional class | ISO 492 Normal (≈ABEC 1); P6 available on request |
| Sealing | Integral contact seals, both sides (2RS-type behavior) |
| Dynamic load rating (C) | ≈ 12–18 kN for comparable ag bearings; per ISO 281, model-dependent |
| Operating temp | -30°C to +110°C typical for grease; short peaks higher |
| Service life | L10 up to 10,000+ hrs in moderate load/speed; application dependent |
| Certifications | Factory ISO 9001; material heat certs traceable |
Lab checks I’ve seen referenced include ISO 281 life calculations, ISO 76 static ratings, and salt-dust ingress screens approximating IP5x behavior for sealed bearings. A recent batch test showed ≤ 0.5 g dust ingress after 24 h chamber run—respectable, though, actually, field grime can be nastier. Noise/vibration per ISO 15242 landed in the “G-P0” band on average.
| Vendor | Warranty | Seal/Grease | Certs | Notes |
|---|---|---|---|---|
| OEM (John Deere) | Dealer policy | Integral seals; JD-specified grease | OEM QC; ISO 9001 at supplier | Exact fit; premium pricing |
| BTZ Bearing (AA35741) | Typically 12 months | 2RS-style; NLGI 2 EP | ISO 9001; batch traceability | OEM-equivalent spec; competitive lead times |
| Generic import | Varies | Mixed sealing | Varies | Check noise class and seal lip design carefully |
For fleets, the factory can usually tune grease type (food-grade, high-temp), seal lip materials, and packaging. I guess that matters if you’re running hot bearings on a chopper in July.
A Midwest contractor swapped eight positions to AA35741 - John Deere Equipment Ball Bearing equivalents before wheat. After 300 engine hours, vibration dropped ~12% on his handheld meter, and he reported less heat at the guards—small win, but it saved a Saturday.
Customer feedback (anecdotal): “Quieter than the old open-style units; seals don’t spit grease after washdown.” Your mileage will vary with alignment and torqueing, obviously.