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  • R+W bellows coupling BK4
  • R+W bellows coupling BK4
R+W bellows coupling BK4

With tapered shaft

Specification: 15-150nm

Standard 1:10 tapered shaft with keyway

It can be customized according to customer needs


Structure: spindle side: use grooved conical clamping collar and fasten non loose hexagon bolt ISO4017.

Temperature range: - 30 to + 120 ° C

Clearance: it is connected by clamps with strong adhesion, and there is absolutely no back clearance.

Service life: according to the technical specifications, the metal bellows coupling can be durable and maintenance free.

Fit clearance: shaft sleeve connection 0.01 - 0.05 mm.

Material Science:

Bellows made of high elastic stainless steel (flexible elastic coupling)

Collar material: steel

Short term overload: up to 1.5 times.

Technical parameters:

Rated torque: 15 - 150 nm

The speed can reach 10000 rpm.

>Fine dynamic balance is required for 10000 rpm

Special solutions for metal bellows couplings: other mating lengths, keyways, special materials and bellows can be provided on request.

Product features of BK4 metal bellows coupling:

For tapered shaft ends of units

Easy to install

The connector has high clamping force through conical clamp

SIZE 15 30 60 150
Rated torque 15 30 60 150
Overall length 47 54 68 76 72 82 82 94
Outside diameter 49 55 66 81
Fit length 19 22 27 32
Shaft diameter range 10-22 12-23 12-39 15-37
Moment of inertia   0.10 0.12 0.22 0.27 0.58 0.61 1.1 1.4

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