MANNIFEN 2-Jaw Gear & Bearing Puller 8" (200mm) — Reversible Jaws, Forged Chrome-Vanadium

MANNIFEN's 2-jaw puller is a forged chrome-vanadium tool designed to remove small pulleys, flywheels, and bearings safely from shafts — reversible jaws let you pull internally or externally.

This compact 8" (200mm) puller combines heat-treated strength with a versatile reversible jaw design so you can tackle miniature bearings and small gears without damaging surrounding parts. The tool's screw length and bracket geometry are optimized for clearance on engines, motor housings, and workshop fixtures. It ships with an anti-fall pin that slightly reduces usable bracket span but improves safety during use.

How does this puller remove bearings and pulleys without slipping or damage?

The MANNIFEN 2-jaw design grips components evenly on both sides to apply balanced force to the inner or outer diameter. The central threaded forcing screw pushes on the shaft while the jaws pull the component straight off, minimizing side-load and scoring. Heat-treated chrome-vanadium construction keeps the jaws rigid under torque so they don't deform.

• Reversible jaws for internal or external gripping
• Balanced two-arm pull prevents uneven extraction
• Forged chrome-vanadium steel for high strength and durability
• Anti-fall pin improves jaw retention during operation

What sizes and dimensions should I expect with the 8" model?

This listing is the marked 8" (200mm) puller; the bracket is nominally 200mm but the anti-fall pin results in a working bracket span of about 175mm. The screw length measures approximately 167mm (6.57 inches) and each claw, when installed on the bracket, offers about 112mm (4.4 inches) of reach. MANNIFEN also offers 4", 6", and 10" variants if you need a different span.

• Marked size: 8" / 200mm (nominal)
• Usable bracket span: ≈175mm due to safety pin
• Screw length: ≈167mm (6.57 inches)
• Claw reach: ≈112mm (4.4 inches) when installed

Which materials and finishes improve its lifespan and performance?

The main body and jaws are forged from chrome-vanadium steel and receive heat treatment to increase toughness and wear resistance. This metallurgical process reduces the risk of bending or cracking under load compared with mild steel pullers. The threaded forcing screw is finished to allow smooth turning while resisting corrosion and galling during repeated workshop use.

• Forged chrome-vanadium construction for strength
• Heat treatment for improved hardness and fatigue resistance
• Smooth, durable screw finish for reliable operation
• Robust jaws resist deformation during heavy pulls

How should I use the reversible jaws safely and effectively?

Choose the jaw orientation (inside or outside) that matches the component's features, ensure the puller sits square to the shaft, and tighten the center screw gradually while checking alignment. Secure the part to prevent rotation, wear protective eyewear, and use a suitable socket or hex driver on the forcing screw to control torque. Stop and reposition the jaws if the puller starts to tilt or the part binds.

• Select internal or external jaw setup before applying force
• Align puller centrally on the shaft for even extraction
• Tighten the forcing screw slowly, monitoring movement
• Use safety gear and reposition if binding occurs

Who is this for: The MANNIFEN 8" 2-jaw puller is intended for mechanics, hobbyists, and small-engine technicians who need a compact but strong extractor for small bearings, pulleys, flywheels, and gears. If you work on motorcycles, scooters, lawn equipment, electric motors, or compact automotive components and want a reversible, heat-treated tool built to withstand repeated use, this model is a practical, workshop-ready choice.