BTH-1222B SKF

Tapered Roller Bearings BTH-1222B SKF

SKF BTH-1222B is a premium single-row deep groove ball bearing engineered by SKF for high-load, high-precision industrial and automotive applications. Optimized for exceptional radial load capacity, low friction, and extended service life, this bearing delivers reliable performance in compact spaces, making it a top choice for demanding powertrain and transmission systems.

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SKF BTH-1222B is a premium single-row deep groove ball bearing engineered by SKF for high-load, high-precision industrial and automotive applications. Optimized for exceptional radial load capacity, low friction, and extended service life, this bearing delivers reliable performance in compact spaces, making it a top choice for demanding powertrain and transmission systems.
1. Precise Dimension Parameters (ISO 492 Standard)
- Bore diameter (d): 30 mm (tolerance: h5, −0.008/+0 mm)
- Outer diameter (D): 62 mm (tolerance: H6, 0/+0.019 mm)
- Width (B): 48 mm (tolerance: ±0.05 mm)
- Chamfer dimension (rmin/rmax): 1.0 mm / 1.2 mm
- Weight: 0.709 kg
- Precision class: P6 (ISO 492), radial runout ≤ 0.005 mm
- Internal clearance: CN (normal, ISO 5753)
- Basic dynamic load rating (Cr): 42.8 kN
- Basic static load rating (C0r): 31.5 kN
2. Premium Material Specification
- Inner/outer rings: High-carbon chromium bearing steel 100Cr6 (AISI 52100). Hardness: 60–64 HRC; excellent wear resistance, fatigue strength, and dimensional stability under heavy loads.
- Rolling balls: 100Cr6 (AISI 52100) precision-grade balls. Surface hardness: 61–65 HRC; uniform load distribution and minimal rotational friction.
- Cage: Pressed steel (SPCC). High structural rigidity, excellent ball guidance, and stable operation at speeds up to 5,000 rpmSKF 集团.
3. Advanced Manufacturing Process
- Hot forging: Precision closed-die forging for refined grain structure and enhanced mechanical integrity.
- CNC turning: High-precision machining achieving dimensional accuracy ≤ ±0.003 mm.
- Heat treatment: Vacuum hardening + tempering for uniform hardness, minimal distortion, and improved fatigue life.
- Grinding: Multi-stage precision grinding (raceway roughness Ra ≤ 0.15 μm).
- Superfinishing: Micro-honing process (Ra ≤ 0.04 μm) for raceways and balls, reducing friction and enhancing lubricant retention.
4. Service Life Performance
- Standard rating life (L10): 10,000–14,000 hours under ISO 281:2007 conditions (radial load 65% of Cr, 1,800 rpm, clean grease lubrication)SKF .
- Limiting speed (grease): 4,500 rpm; (oil): 5,500 rpmSKF .
- Key life factors: Load magnitude, lubrication quality, contamination, operating temperature (-30°C to +120°C), and shaft alignment accuracy.
5. Target Applications & Industries
- Automotive: Transmission gearboxes, differential assemblies, electric vehicle (EV) drive systems (high radial load, compact design).
- Industrial gearboxes: Helical gear reducers, conveyor drives (continuous heavy-duty operation).
- Agricultural machinery: Tractor transmissions, harvester drives (harsh environments, misalignment tolerance).
- Pumps & compressors: Centrifugal pumps, air compressors (low noise, stable high-speed running).
- Material handling: Forklift gearboxes, conveyor pulleys (shock load resistance, long service life).
6. Maintenance & Lubrication
- Lubricant: SKF LGMT 3 / Mobilux EP 2 lithium complex grease (NLGI 2) or ISO VG 68–100 mineral oil.
- Regreasing interval: 1,800–2,200 operating hours; 600 hours under heavy contamination.
- Grease quantity: 9–11 g (30–35% of internal free space).
- Inspection: Every 600 hours; check noise, vibration, temperature (<75°C), and leakage; clean with petroleum ether if contaminated.
7. Installation Guidelines
- Pre-installation: Clean shaft/housing with isopropyl alcohol; inspect for burrs, corrosion, and dimensional accuracySKF .
- Mounting: Induction heater (80–100°C) for inner ring; hydraulic press (max 40 kN) for outer ring; avoid direct hammering.
- Alignment: Radial misalignment ≤ 0.002 mm/100 mm; axial runout ≤ 0.004 mm.
- Fastening: Lock nut torque: 65–75 Nm (grade 8.8 bolts).
- Post-installation: Manual rotation check; temperature rise <30°C above ambient; vibration test for smooth operation.
BRAND FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO. BTH-1222B SKF
TYPE Tapered Roller Bearings
Inner(d)mm 30
Outer(D)mm 62
Width(B)mm 48
WEIGHT/KG 0.7
EAN CODE 7316577695659
Tel

+86-510-6831-3099

E-mail

fonkin-industries@188.com

Address

No.105, Huixin Road,Yuqi Industrial Park, Huishan District, hunqi Road, Yuqi Town, Wuxi, Jiangsu Province, P.R.CHINA

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Next Tapered Roller Bearings 32056-X-XL FAG

BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO.	BTH-1222B SKF
TYPE	Tapered Roller Bearings
Inner(d)mm	30
Outer(D)mm	62
Width(B)mm	48
WEIGHT/KG	0.7
EAN CODE	7316577695659

Tapered Roller Bearings BTH-1222B SKF

1. Precise Dimension Parameters (ISO 492 Standard)

2. Premium Material Specification

3. Advanced Manufacturing Process

4. Service Life Performance

5. Target Applications & Industries

6. Maintenance & Lubrication

7. Installation Guidelines

Tel

E-mail

Address

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