B1012 Open End Full Complement Drawn Cup Needle Roller Bearing Imperial Size 15.88x20.64x19.05mm Industrial Transmission Equipment

1. Product Overview
The B1012 is imperial B-series open-end drawn cup full complement needle roller bearing, standard inch dimension 5/8×13/16×3/4 inch (15.88×20.64×19.05mm). It adopts cage-free full dense needle roller layout, greatly improving radial load capacity within narrow radial space. Thin stamped steel outer cup realizes compact installation, open both ends for convenient grease refilling, only bears radial load, widely applied in textile looms, automotive auxiliary components, agricultural machinery, small gearboxes and low-speed oscillating transmission assemblies.

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???? Full technical dimension drawing and load datasheet available upon request

• Cage-free full complement needle layout, more rollers inside, 2x higher radial load capacity than caged needle bearings of same size
• Thin stamped drawn cup structure, ultra-small radial section, save limited housing installation space
• Double open end design, easy regular grease replenishment, extend long service life under heavy load
• High hardness quenched steel cup and needles, excellent wear resistance for dusty low-speed heavy-load working conditions
• Standard imperial inch size, fully interchangeable with global original B1012 replacement parts
• Optional closed-end BH1012 variant for shaft end limit installation requirements

???? Compact high-load inch-size needle bearing solution for textile, auto and agricultural transmission machinery

• Textile loom rotating shafts, textile machinery auxiliary drive assemblies
• Automotive alternator, small clutch and vehicle transmission sub-components
• Agricultural harvesters, garden power tools and farm equipment rotary joints
• Small industrial gearboxes, packaging machinery and low-speed oscillating mechanical structures
• General inch-standard equipment requiring heavy radial load support in narrow space

???? Cost-effective high-load imperial needle bearing for textile, automotive and agricultural industry

• 25+ years experience in B-series inch drawn cup needle roller bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM bulk order experience for full complement heavy-load inch needle bearings
• Strict needle size sorting, cup forming hardness and heavy load durability inspection before shipment
• Fast professional technical reply within 24 hours
• Stable mass supply for long-term textile machinery and auto parts factory cooperation

???? We focus on stable ultra-heavy radial load wear resistance and reliable long‑term partnership

• GCr15 bearing steel raw material composition & hardness inspection
• Precision stamping and heat treatment for thin drawn steel cup
• Full needle dimensional sorting to guarantee uniform load distribution
• Static heavy load compression test, full dimension recheck and anti-rust oil treatment
• Independent plastic bag packaging to prevent needle collision deformation during transit

???? Consistent high radial load long-wear performance guaranteed for every B1012 bearing

• 8. FAQ
  • Q1: What’s the difference between full complement B1012 and caged HK series needle bearings?

    B1012 has no cage with more needles, much higher load capacity but lower limit speed, suitable for low-speed heavy load; caged HK types run faster for light load high-speed scenarios.

  • Q2: What is the max working speed of B1012?

    Oil lubriion continuous max speed reaches 4500rpm; grease lubriion recommended below 3000rpm.

  • Q3: What interchangeable variants can you supply?

    Open end B1012, closed end BH1012, P5 high precision grade and stainless steel anti-rust customized version.